public function definition_after_data()
 {
     global $CFG, $DB;
     $mform = $this->_form;
     $course = $this->_customdata['course'];
     $context = context_course::instance($course->id);
     if (!empty($CFG->enableavailability)) {
         $mform->addElement('header', 'availabilityconditions', get_string('availabilityconditions', 'condition'));
         $mform->setExpanded('availabilityconditions', false);
         // String used by conditions more than once
         $strcondnone = get_string('none', 'condition');
         // Grouping conditions - only if grouping is enabled at site level
         if (!empty($CFG->enablegroupmembersonly)) {
             $options = array();
             if ($groupings = $DB->get_records('groupings', array('courseid' => $course->id))) {
                 foreach ($groupings as $grouping) {
                     $options[$grouping->id] = format_string($grouping->name, true, array('context' => $context));
                 }
             }
             collatorlib::asort($options);
             $options = array(0 => get_string('none')) + $options;
             $mform->addElement('select', 'groupingid', get_string('groupingsection', 'group'), $options);
             $mform->addHelpButton('groupingid', 'groupingsection', 'group');
         }
         // Available from/to defaults to midnight because then the display
         // will be nicer where it tells users when they can access it (it
         // shows only the date and not time).
         $date = usergetdate(time());
         $midnight = make_timestamp($date['year'], $date['mon'], $date['mday']);
         // Date and time conditions.
         $mform->addElement('date_time_selector', 'availablefrom', get_string('availablefrom', 'condition'), array('optional' => true, 'defaulttime' => $midnight));
         $mform->addElement('date_time_selector', 'availableuntil', get_string('availableuntil', 'condition'), array('optional' => true, 'defaulttime' => $midnight));
         // Conditions based on grades
         $gradeoptions = array();
         $items = grade_item::fetch_all(array('courseid' => $course->id));
         $items = $items ? $items : array();
         foreach ($items as $id => $item) {
             $gradeoptions[$id] = $item->get_name();
         }
         asort($gradeoptions);
         $gradeoptions = array(0 => $strcondnone) + $gradeoptions;
         $grouparray = array();
         $grouparray[] = $mform->createElement('select', 'conditiongradeitemid', '', $gradeoptions);
         $grouparray[] = $mform->createElement('static', '', '', ' ' . get_string('grade_atleast', 'condition') . ' ');
         $grouparray[] = $mform->createElement('text', 'conditiongrademin', '', array('size' => 3));
         $grouparray[] = $mform->createElement('static', '', '', '% ' . get_string('grade_upto', 'condition') . ' ');
         $grouparray[] = $mform->createElement('text', 'conditiongrademax', '', array('size' => 3));
         $grouparray[] = $mform->createElement('static', '', '', '%');
         $group = $mform->createElement('group', 'conditiongradegroup', get_string('gradecondition', 'condition'), $grouparray);
         // Get full version (including condition info) of section object
         $ci = new condition_info_section($this->_customdata['cs']);
         $fullcs = $ci->get_full_section();
         $count = count($fullcs->conditionsgrade) + 1;
         // Grade conditions
         $this->repeat_elements(array($group), $count, array('conditiongradegroup[conditiongrademin]' => array('type' => PARAM_RAW), 'conditiongradegroup[conditiongrademax]' => array('type' => PARAM_RAW)), 'conditiongraderepeats', 'conditiongradeadds', 2, get_string('addgrades', 'condition'), true);
         $mform->addHelpButton('conditiongradegroup[0]', 'gradecondition', 'condition');
         // Conditions based on user fields
         $operators = condition_info::get_condition_user_field_operators();
         $useroptions = condition_info::get_condition_user_fields(array('context' => $context));
         asort($useroptions);
         $useroptions = array(0 => $strcondnone) + $useroptions;
         $grouparray = array();
         $grouparray[] =& $mform->createElement('select', 'conditionfield', '', $useroptions);
         $grouparray[] =& $mform->createElement('select', 'conditionfieldoperator', '', $operators);
         $grouparray[] =& $mform->createElement('text', 'conditionfieldvalue');
         $group = $mform->createElement('group', 'conditionfieldgroup', get_string('userfield', 'condition'), $grouparray);
         $fieldcount = count($fullcs->conditionsfield) + 1;
         $this->repeat_elements(array($group), $fieldcount, array('conditionfieldgroup[conditionfieldvalue]' => array('type' => PARAM_RAW)), 'conditionfieldrepeats', 'conditionfieldadds', 2, get_string('adduserfields', 'condition'), true);
         $mform->addHelpButton('conditionfieldgroup[0]', 'userfield', 'condition');
         // Conditions based on completion
         $completion = new completion_info($course);
         if ($completion->is_enabled()) {
             $completionoptions = array();
             $modinfo = get_fast_modinfo($course);
             foreach ($modinfo->cms as $id => $cm) {
                 // Add each course-module if it:
                 // (a) has completion turned on
                 // (b) does not belong to current course-section
                 if ($cm->completion && $fullcs->id != $cm->section) {
                     $completionoptions[$id] = $cm->name;
                 }
             }
             asort($completionoptions);
             $completionoptions = array(0 => $strcondnone) + $completionoptions;
             $completionvalues = array(COMPLETION_COMPLETE => get_string('completion_complete', 'condition'), COMPLETION_INCOMPLETE => get_string('completion_incomplete', 'condition'), COMPLETION_COMPLETE_PASS => get_string('completion_pass', 'condition'), COMPLETION_COMPLETE_FAIL => get_string('completion_fail', 'condition'));
             $grouparray = array();
             $grouparray[] = $mform->createElement('select', 'conditionsourcecmid', '', $completionoptions);
             $grouparray[] = $mform->createElement('select', 'conditionrequiredcompletion', '', $completionvalues);
             $group = $mform->createElement('group', 'conditioncompletiongroup', get_string('completioncondition', 'condition'), $grouparray);
             $count = count($fullcs->conditionscompletion) + 1;
             $this->repeat_elements(array($group), $count, array(), 'conditioncompletionrepeats', 'conditioncompletionadds', 2, get_string('addcompletions', 'condition'), true);
             $mform->addHelpButton('conditioncompletiongroup[0]', 'completionconditionsection', 'condition');
         }
         // Availability conditions - set up form values
         if (!empty($CFG->enableavailability)) {
             $num = 0;
             foreach ($fullcs->conditionsgrade as $gradeitemid => $minmax) {
                 $groupelements = $mform->getElement('conditiongradegroup[' . $num . ']')->getElements();
                 $groupelements[0]->setValue($gradeitemid);
                 $groupelements[2]->setValue(is_null($minmax->min) ? '' : format_float($minmax->min, 5, true, true));
                 $groupelements[4]->setValue(is_null($minmax->max) ? '' : format_float($minmax->max, 5, true, true));
                 $num++;
             }
             $num = 0;
             foreach ($fullcs->conditionsfield as $fieldid => $data) {
                 $groupelements = $mform->getElement('conditionfieldgroup[' . $num . ']')->getElements();
                 $groupelements[0]->setValue($fieldid);
                 $groupelements[1]->setValue(is_null($data->operator) ? '' : $data->operator);
                 $groupelements[2]->setValue(is_null($data->value) ? '' : $data->value);
                 $num++;
             }
             if ($completion->is_enabled()) {
                 $num = 0;
                 foreach ($fullcs->conditionscompletion as $othercmid => $state) {
                     $groupelements = $mform->getElement('conditioncompletiongroup[' . $num . ']')->getElements();
                     $groupelements[0]->setValue($othercmid);
                     $groupelements[1]->setValue($state);
                     $num++;
                 }
             }
         }
         // Do we display availability info to students?
         $showhide = array(CONDITION_STUDENTVIEW_SHOW => get_string('showavailabilitysection_show', 'condition'), CONDITION_STUDENTVIEW_HIDE => get_string('showavailabilitysection_hide', 'condition'));
         $mform->addElement('select', 'showavailability', get_string('showavailabilitysection', 'condition'), $showhide);
     }
     $this->add_action_buttons();
 }
Example #2
0
 /**
  * Adds all the standard elements to a form to edit the settings for an activity module.
  */
 function standard_coursemodule_elements()
 {
     global $COURSE, $CFG, $DB;
     $mform =& $this->_form;
     $this->_outcomesused = false;
     if ($this->_features->outcomes) {
         if ($outcomes = grade_outcome::fetch_all_available($COURSE->id)) {
             $this->_outcomesused = true;
             $mform->addElement('header', 'modoutcomes', get_string('outcomes', 'grades'));
             foreach ($outcomes as $outcome) {
                 $mform->addElement('advcheckbox', 'outcome_' . $outcome->id, $outcome->get_name());
             }
         }
     }
     if ($this->_features->rating) {
         require_once $CFG->dirroot . '/rating/lib.php';
         $rm = new rating_manager();
         $mform->addElement('header', 'modstandardratings', get_string('ratings', 'rating'));
         $permission = CAP_ALLOW;
         $rolenamestring = null;
         if (!empty($this->_cm)) {
             $context = context_module::instance($this->_cm->id);
             $rolenames = get_role_names_with_caps_in_context($context, array('moodle/rating:rate', 'mod/' . $this->_cm->modname . ':rate'));
             $rolenamestring = implode(', ', $rolenames);
         } else {
             $rolenamestring = get_string('capabilitychecknotavailable', 'rating');
         }
         $mform->addElement('static', 'rolewarning', get_string('rolewarning', 'rating'), $rolenamestring);
         $mform->addHelpButton('rolewarning', 'rolewarning', 'rating');
         $mform->addElement('select', 'assessed', get_string('aggregatetype', 'rating'), $rm->get_aggregate_types());
         $mform->setDefault('assessed', 0);
         $mform->addHelpButton('assessed', 'aggregatetype', 'rating');
         $mform->addElement('modgrade', 'scale', get_string('scale'), false);
         $mform->disabledIf('scale', 'assessed', 'eq', 0);
         $mform->addElement('checkbox', 'ratingtime', get_string('ratingtime', 'rating'));
         $mform->disabledIf('ratingtime', 'assessed', 'eq', 0);
         $mform->addElement('date_time_selector', 'assesstimestart', get_string('from'));
         $mform->disabledIf('assesstimestart', 'assessed', 'eq', 0);
         $mform->disabledIf('assesstimestart', 'ratingtime');
         $mform->addElement('date_time_selector', 'assesstimefinish', get_string('to'));
         $mform->disabledIf('assesstimefinish', 'assessed', 'eq', 0);
         $mform->disabledIf('assesstimefinish', 'ratingtime');
     }
     //doing this here means splitting up the grade related settings on the lesson settings page
     //$this->standard_grading_coursemodule_elements();
     $mform->addElement('header', 'modstandardelshdr', get_string('modstandardels', 'form'));
     if ($this->_features->groups) {
         $options = array(NOGROUPS => get_string('groupsnone'), SEPARATEGROUPS => get_string('groupsseparate'), VISIBLEGROUPS => get_string('groupsvisible'));
         $mform->addElement('select', 'groupmode', get_string('groupmode', 'group'), $options, NOGROUPS);
         $mform->addHelpButton('groupmode', 'groupmode', 'group');
     }
     if ($this->_features->groupings or $this->_features->groupmembersonly) {
         //groupings selector - used for normal grouping mode or also when restricting access with groupmembersonly
         $options = array();
         $options[0] = get_string('none');
         if ($groupings = $DB->get_records('groupings', array('courseid' => $COURSE->id))) {
             foreach ($groupings as $grouping) {
                 $options[$grouping->id] = format_string($grouping->name);
             }
         }
         $mform->addElement('select', 'groupingid', get_string('grouping', 'group'), $options);
         $mform->addHelpButton('groupingid', 'grouping', 'group');
         $mform->setAdvanced('groupingid');
     }
     if ($this->_features->groupmembersonly) {
         $mform->addElement('checkbox', 'groupmembersonly', get_string('groupmembersonly', 'group'));
         $mform->addHelpButton('groupmembersonly', 'groupmembersonly', 'group');
         $mform->setAdvanced('groupmembersonly');
     }
     $mform->addElement('modvisible', 'visible', get_string('visible'));
     if (!empty($this->_cm)) {
         $context = context_module::instance($this->_cm->id);
         if (!has_capability('moodle/course:activityvisibility', $context)) {
             $mform->hardFreeze('visible');
         }
     }
     if ($this->_features->idnumber) {
         $mform->addElement('text', 'cmidnumber', get_string('idnumbermod'));
         $mform->addHelpButton('cmidnumber', 'idnumbermod');
     }
     if (!empty($CFG->enableavailability)) {
         // String used by conditions
         $strnone = get_string('none', 'condition');
         // Conditional availability
         // Available from/to defaults to midnight because then the display
         // will be nicer where it tells users when they can access it (it
         // shows only the date and not time).
         $date = usergetdate(time());
         $midnight = make_timestamp($date['year'], $date['mon'], $date['mday']);
         // From/until controls
         $mform->addElement('header', 'availabilityconditionsheader', get_string('availabilityconditions', 'condition'));
         $mform->addElement('date_time_selector', 'availablefrom', get_string('availablefrom', 'condition'), array('optional' => true, 'defaulttime' => $midnight));
         $mform->addHelpButton('availablefrom', 'availablefrom', 'condition');
         $mform->addElement('date_time_selector', 'availableuntil', get_string('availableuntil', 'condition'), array('optional' => true, 'defaulttime' => $midnight));
         // Conditions based on grades
         $gradeoptions = array();
         $items = grade_item::fetch_all(array('courseid' => $COURSE->id));
         $items = $items ? $items : array();
         foreach ($items as $id => $item) {
             // Do not include grades for current item
             if (!empty($this->_cm) && $this->_cm->instance == $item->iteminstance && $this->_cm->modname == $item->itemmodule && $item->itemtype == 'mod') {
                 continue;
             }
             $gradeoptions[$id] = $item->get_name();
         }
         asort($gradeoptions);
         $gradeoptions = array(0 => $strnone) + $gradeoptions;
         $grouparray = array();
         $grouparray[] =& $mform->createElement('select', 'conditiongradeitemid', '', $gradeoptions);
         $grouparray[] =& $mform->createElement('static', '', '', ' ' . get_string('grade_atleast', 'condition') . ' ');
         $grouparray[] =& $mform->createElement('text', 'conditiongrademin', '', array('size' => 3));
         $grouparray[] =& $mform->createElement('static', '', '', '% ' . get_string('grade_upto', 'condition') . ' ');
         $grouparray[] =& $mform->createElement('text', 'conditiongrademax', '', array('size' => 3));
         $grouparray[] =& $mform->createElement('static', '', '', '%');
         $group = $mform->createElement('group', 'conditiongradegroup', get_string('gradecondition', 'condition'), $grouparray);
         // Get version with condition info and store it so we don't ask
         // twice
         if (!empty($this->_cm)) {
             $ci = new condition_info($this->_cm, CONDITION_MISSING_EXTRATABLE);
             $this->_cm = $ci->get_full_course_module();
             $count = count($this->_cm->conditionsgrade) + 1;
             $fieldcount = count($this->_cm->conditionsfield) + 1;
         } else {
             $count = 1;
             $fieldcount = 1;
         }
         $this->repeat_elements(array($group), $count, array(), 'conditiongraderepeats', 'conditiongradeadds', 2, get_string('addgrades', 'condition'), true);
         $mform->addHelpButton('conditiongradegroup[0]', 'gradecondition', 'condition');
         // Conditions based on user fields
         $operators = condition_info::get_condition_user_field_operators();
         $useroptions = condition_info::get_condition_user_fields();
         asort($useroptions);
         $useroptions = array(0 => $strnone) + $useroptions;
         $grouparray = array();
         $grouparray[] =& $mform->createElement('select', 'conditionfield', '', $useroptions);
         $grouparray[] =& $mform->createElement('select', 'conditionfieldoperator', '', $operators);
         $grouparray[] =& $mform->createElement('text', 'conditionfieldvalue');
         $mform->setType('conditionfieldvalue', PARAM_RAW);
         $group = $mform->createElement('group', 'conditionfieldgroup', get_string('userfield', 'condition'), $grouparray);
         $this->repeat_elements(array($group), $fieldcount, array(), 'conditionfieldrepeats', 'conditionfieldadds', 2, get_string('adduserfields', 'condition'), true);
         $mform->addHelpButton('conditionfieldgroup[0]', 'userfield', 'condition');
         // Conditions based on completion
         $completion = new completion_info($COURSE);
         if ($completion->is_enabled()) {
             $completionoptions = array();
             $modinfo = get_fast_modinfo($COURSE);
             foreach ($modinfo->cms as $id => $cm) {
                 // Add each course-module if it:
                 // (a) has completion turned on
                 // (b) is not the same as current course-module
                 if ($cm->completion && (empty($this->_cm) || $this->_cm->id != $id)) {
                     $completionoptions[$id] = $cm->name;
                 }
             }
             asort($completionoptions);
             $completionoptions = array(0 => $strnone) + $completionoptions;
             $completionvalues = array(COMPLETION_COMPLETE => get_string('completion_complete', 'condition'), COMPLETION_INCOMPLETE => get_string('completion_incomplete', 'condition'), COMPLETION_COMPLETE_PASS => get_string('completion_pass', 'condition'), COMPLETION_COMPLETE_FAIL => get_string('completion_fail', 'condition'));
             $grouparray = array();
             $grouparray[] =& $mform->createElement('select', 'conditionsourcecmid', '', $completionoptions);
             $grouparray[] =& $mform->createElement('select', 'conditionrequiredcompletion', '', $completionvalues);
             $group = $mform->createElement('group', 'conditioncompletiongroup', get_string('completioncondition', 'condition'), $grouparray);
             $count = empty($this->_cm) ? 1 : count($this->_cm->conditionscompletion) + 1;
             $this->repeat_elements(array($group), $count, array(), 'conditioncompletionrepeats', 'conditioncompletionadds', 2, get_string('addcompletions', 'condition'), true);
             $mform->addHelpButton('conditioncompletiongroup[0]', 'completioncondition', 'condition');
         }
         // Do we display availability info to students?
         $mform->addElement('select', 'showavailability', get_string('showavailability', 'condition'), array(CONDITION_STUDENTVIEW_SHOW => get_string('showavailability_show', 'condition'), CONDITION_STUDENTVIEW_HIDE => get_string('showavailability_hide', 'condition')));
         $mform->setDefault('showavailability', CONDITION_STUDENTVIEW_SHOW);
     }
     // Conditional activities: completion tracking section
     if (!isset($completion)) {
         $completion = new completion_info($COURSE);
     }
     if ($completion->is_enabled()) {
         $mform->addElement('header', 'activitycompletionheader', get_string('activitycompletion', 'completion'));
         // Unlock button for if people have completed it (will
         // be removed in definition_after_data if they haven't)
         $mform->addElement('submit', 'unlockcompletion', get_string('unlockcompletion', 'completion'));
         $mform->registerNoSubmitButton('unlockcompletion');
         $mform->addElement('hidden', 'completionunlocked', 0);
         $mform->setType('completionunlocked', PARAM_INT);
         $mform->addElement('select', 'completion', get_string('completion', 'completion'), array(COMPLETION_TRACKING_NONE => get_string('completion_none', 'completion'), COMPLETION_TRACKING_MANUAL => get_string('completion_manual', 'completion')));
         $mform->setDefault('completion', $this->_features->defaultcompletion ? COMPLETION_TRACKING_MANUAL : COMPLETION_TRACKING_NONE);
         $mform->addHelpButton('completion', 'completion', 'completion');
         // Automatic completion once you view it
         $gotcompletionoptions = false;
         if (plugin_supports('mod', $this->_modname, FEATURE_COMPLETION_TRACKS_VIEWS, false)) {
             $mform->addElement('checkbox', 'completionview', get_string('completionview', 'completion'), get_string('completionview_desc', 'completion'));
             $mform->disabledIf('completionview', 'completion', 'ne', COMPLETION_TRACKING_AUTOMATIC);
             $gotcompletionoptions = true;
         }
         // Automatic completion once it's graded
         if (plugin_supports('mod', $this->_modname, FEATURE_GRADE_HAS_GRADE, false)) {
             $mform->addElement('checkbox', 'completionusegrade', get_string('completionusegrade', 'completion'), get_string('completionusegrade_desc', 'completion'));
             $mform->disabledIf('completionusegrade', 'completion', 'ne', COMPLETION_TRACKING_AUTOMATIC);
             $mform->addHelpButton('completionusegrade', 'completionusegrade', 'completion');
             $gotcompletionoptions = true;
         }
         // Automatic completion according to module-specific rules
         $this->_customcompletionelements = $this->add_completion_rules();
         foreach ($this->_customcompletionelements as $element) {
             $mform->disabledIf($element, 'completion', 'ne', COMPLETION_TRACKING_AUTOMATIC);
         }
         $gotcompletionoptions = $gotcompletionoptions || count($this->_customcompletionelements) > 0;
         // Automatic option only appears if possible
         if ($gotcompletionoptions) {
             $mform->getElement('completion')->addOption(get_string('completion_automatic', 'completion'), COMPLETION_TRACKING_AUTOMATIC);
         }
         // Completion expected at particular date? (For progress tracking)
         $mform->addElement('date_selector', 'completionexpected', get_string('completionexpected', 'completion'), array('optional' => true));
         $mform->addHelpButton('completionexpected', 'completionexpected', 'completion');
         $mform->disabledIf('completionexpected', 'completion', 'eq', COMPLETION_TRACKING_NONE);
     }
     $this->standard_hidden_coursemodule_elements();
 }
/**
 * taskchain_navigation_accesscontrol_form
 *
 * @param xxx $course
 * @param xxx $block_instance
 */
function taskchain_navigation_accesscontrol_form($course, $block_instance, $action)
{
    global $CFG, $DB, $OUTPUT, $PAGE;
    // site and system contexts
    if (class_exists('context')) {
        $sitecontext = context_course::instance(SITEID);
        $systemcontext = context_system::instance();
    } else {
        $sitecontext = get_context_instance(CONTEXT_COURSE, SITEID);
        $systemcontext = get_context_instance(CONTEXT_SYSTEM);
    }
    $hassiteconfig = has_capability('moodle/site:config', $systemcontext);
    // decode block config settings, in case they are needed later
    $block_instance->config = unserialize(base64_decode($block_instance->configdata));
    // we need the DB manager to check which
    // DB tables and fields are available
    $dbman = $DB->get_manager();
    $plugin = 'block_taskchain_navigation';
    $select_size = 5;
    $cm_namelength = 40;
    $cm_headlength = 10;
    $cm_taillength = 10;
    $section_namelength = 48;
    $section_headlength = 18;
    $section_taillength = 18;
    // get previous or default form values
    $sections_array = optional_param_array('sections', array(), PARAM_INT);
    $modules_array = optional_param_array('modules', array(), PARAM_ALPHA);
    $cmids_array = optional_param_array('cmids', array(), PARAM_INT);
    $include = optional_param('include', '', PARAM_TEXT);
    $exclude = optional_param('exclude', '', PARAM_TEXT);
    $visibility = optional_param('visibility', -1, PARAM_INT);
    // available from/until dates
    $time = time();
    $fromdisable = optional_param('fromdisable', 0, PARAM_INT);
    $untildisable = optional_param('untildisable', 0, PARAM_INT);
    $cutoffdisable = optional_param('cutoffdisable', 0, PARAM_INT);
    list($availablefrom, $fromdate) = get_timestamp_and_date('from', null, $time, $fromdisable);
    list($availableuntil, $untildate) = get_timestamp_and_date('until', null, $time, $untildisable);
    list($availablecutoff, $cutoffdate) = get_timestamp_and_date('cutoff', null, $time, $cutoffdisable);
    $sortgradeitems = optional_param('sortgradeitems', 0, PARAM_INT);
    $creategradecats = optional_param('creategradecats', 0, PARAM_INT);
    $removegradecats = optional_param('removegradecats', 0, PARAM_INT);
    $rating = optional_param('rating', 0, PARAM_INT);
    $maxgrade = optional_param('maxgrade', 100, PARAM_INT);
    $gradepass = optional_param('gradepass', 60, PARAM_INT);
    $gradecat = optional_param('gradecat', 0, PARAM_INT);
    $gradeitemhidden = optional_param('gradeitemhidden', 0, PARAM_INT);
    $extracredit = optional_param('extracredit', 0, PARAM_INT);
    $regrade = optional_param('regrade', 0, PARAM_INT);
    $groupmode = optional_param('groupmode', 0, PARAM_INT);
    $groupingid = optional_param('groupingid', 0, PARAM_INT);
    $groupmembersonly = optional_param('groupmembersonly', 0, PARAM_INT);
    $sortactivities = optional_param('sortactivities', 0, PARAM_INT);
    $visible = optional_param('visible', 1, PARAM_INT);
    $indent = optional_param('indent', 0, PARAM_INT);
    $section = optional_param('section', 0, PARAM_INT);
    $position = optional_param('position', 0, PARAM_INT);
    $uploadlimit = optional_param('uploadlimit', 0, PARAM_INT);
    $siteuploadlimit = get_config(null, 'maxbytes');
    $courseuploadlimit = $course->maxbytes;
    $uploadlimitmenu = get_max_upload_sizes($siteuploadlimit, $courseuploadlimit);
    $removeconditions = optional_param('removeconditions', 0, PARAM_INT);
    $removecompletion = optional_param('removecompletion', 0, PARAM_INT);
    $erasecompletion = optional_param('erasecompletion', 0, PARAM_INT);
    // course_modules_availability OR course_modules.availability
    $conditiondatedirection = optional_param_array('conditiondatedirection', array(0), PARAM_INT);
    $conditiongradeitemid = optional_param_array('conditiongradeitemid', array(0), PARAM_INT);
    $conditiongrademin = optional_param_array('conditiongrademin', array(60), PARAM_INT);
    $conditiongrademax = optional_param_array('conditiongrademax', array(100), PARAM_INT);
    $conditionfieldname = optional_param_array('conditionfieldname', array(''), PARAM_ALPHANUM);
    $conditionfieldoperator = optional_param_array('conditionfieldoperator', array(''), PARAM_ALPHANUM);
    $conditionfieldvalue = optional_param_array('conditionfieldvalue', array(''), PARAM_ALPHANUM);
    $conditiongroupid = optional_param_array('conditiongroupid', array(0), PARAM_INT);
    $conditiongroupingid = optional_param_array('conditiongroupingid', array(0), PARAM_INT);
    $conditioncmid = optional_param_array('conditioncmid', array(0), PARAM_INT);
    // may be negative NEXT/PREVIOUS_ANY_COURSE/SECTION
    $conditioncmungraded = optional_param_array('conditioncmungraded', array(0), PARAM_INT);
    // 0=skip, 1=include ungraded activities
    $conditioncmresources = optional_param_array('conditioncmresources', array(0), PARAM_INT);
    // 0=skip, 1=include resources
    $conditioncmlabels = optional_param_array('conditioncmlabels', array(0), PARAM_INT);
    // 0=skip, 1=include labels
    $conditioncmcompletion = optional_param_array('conditioncmcompletion', array(1), PARAM_INT);
    // 0=incomplete, 1=complete, 2=pass, 3=fail
    $conditionaction = optional_param_array('conditionaction', array(1), PARAM_INT);
    // 0=hide, 1=show(greyed out)
    // course_modules.xxx
    $completiontracking = optional_param('completiontracking', 0, PARAM_INT);
    $completionday = optional_param('completionday', 0, PARAM_INT);
    $completionmonth = optional_param('completionmonth', 0, PARAM_INT);
    $completionyear = optional_param('completionyear', 0, PARAM_INT);
    // there may also be a number of activity-specific completion fields
    // (e.g. the "completionpass" field used by the Quiz and TaskChain modules)
    // there may also be a number of fields to enable/disable filters
    // (e.g. "filterglossary", "filtermediaplugin")
    // Competency settings
    $competencyrule = optional_param('competencyrule', 0, PARAM_INT);
    $conditiondate = array();
    $conditiondatetime = array();
    foreach ($conditiondatedirection as $i => $d) {
        switch ($d) {
            case 1:
                $d = '>=';
                break;
            case 2:
                $d = '<=';
                break;
            default:
                continue;
        }
        list($t, $date) = get_timestamp_and_date('conditiondatetime', $i, $time);
        $conditiondate[$i] = (object) array('type' => 'date', 'd' => $d, 't' => $t);
        $conditiondatetime[$i] = $date;
    }
    $conditiongrade = array();
    foreach ($conditiongradeitemid as $i => $id) {
        if ($id == 0) {
            continue;
        }
        $conditiongrade[] = (object) array('type' => 'grade', 'id' => $id, 'min' => empty($conditiongrademin[$i]) ? 0 : $conditiongrademin[$i], 'max' => empty($conditiongrademax[$i]) ? 100 : $conditiongrademax[$i]);
    }
    $conditionfield = array();
    foreach ($conditionfieldname as $i => $name) {
        if ($name == '') {
            continue;
        }
        $conditionfield[] = (object) array('type' => 'profile', 'sf' => $name, 'op' => empty($conditionfieldoperator[$i]) ? '' : $conditionfieldoperator[$i], 'v' => empty($conditionfieldvalue[$i]) ? '' : $conditionfieldvalue[$i]);
    }
    $conditiongroup = array();
    foreach ($conditiongroupid as $i => $id) {
        if ($id == 0) {
            continue;
        }
        $conditiongroup[] = (object) array('type' => 'group', 'id' => $id);
    }
    $conditiongrouping = array();
    foreach ($conditiongroupingid as $i => $id) {
        if ($id == 0) {
            continue;
        }
        $conditiongrouping[] = (object) array('type' => 'grouping', 'id' => $id);
    }
    $conditioncm = array();
    foreach ($conditioncmid as $i => $id) {
        if ($id == 0) {
            continue;
        }
        $conditioncm[] = (object) array('type' => 'completion', 'cm' => $id, 'e' => isset($conditioncmcompletion[$i]) ? $conditioncmcompletion[$i] : 1, 'ungraded' => empty($conditioncmungraded[$i]) ? 0 : 1, 'resources' => empty($conditioncmresources[$i]) ? 0 : 1, 'labels' => empty($conditioncmlabels[$i]) ? 0 : 1);
    }
    if ($completionday && $completionmonth && $completionyear) {
        $completiondate = make_timestamp($completionyear, $completionmonth, $completionday, 0, 0, 0, 99, false);
    } else {
        $completiondate = 0;
    }
    // add standard settings
    $settings = array('availablefrom', 'availableuntil', 'availablecutoff', 'rating', 'maxgrade', 'gradepass', 'gradecat', 'gradeitemhidden', 'extracredit', 'regrade', 'groupmode', 'groupingid', 'groupmembersonly', 'visible', 'indent', 'section', 'uploadlimit');
    // add switches to enable/disable filters
    $filters = filter_get_available_in_context($course->context);
    foreach (array_keys($filters) as $filter) {
        $setting = 'filter' . $filter;
        echo $setting;
        $settings[] = $setting;
        ${$setting} = optional_param($setting, null, PARAM_INT);
    }
    // add "availability" settings, if enabled
    if (empty($CFG->enableavailability)) {
        $enableavailability = false;
    } else {
        $enableavailability = true;
    }
    if ($enableavailability) {
        array_push($settings, 'removeconditions', 'conditiondate', 'conditiongrade', 'conditionfield', 'conditiongroup', 'conditiongrouping', 'conditioncm', 'conditionaction');
    }
    // add "completion" settings, if enabled
    if (empty($CFG->enablecompletion) || empty($course->enablecompletion)) {
        $enablecompletion = false;
    } else {
        $enablecompletion = true;
    }
    if ($enablecompletion) {
        array_push($settings, 'removecompletion', 'erasecompletion', 'completiontracking', 'completiondate');
    }
    // are we using competencies
    // (available in Moodle >= 3.1)
    if (get_config('core_competency', 'enabled')) {
        $enablecompetency = true;
    } else {
        $enablecompetency = false;
    }
    if ($enablecompetency) {
        array_push($settings, 'competencyrule');
    }
    // custom html tags that delimit section title in the section summary
    $sectiontags = $block_instance->config->sectiontitletags;
    $sectiontags = optional_param('sectiontags', $sectiontags, PARAM_TEXT);
    // set course section type
    if ($course->format == 'weeks') {
        $sectiontype = 'week';
    } else {
        if ($course->format == 'topics') {
            $sectiontype = 'topic';
        } else {
            $sectiontype = 'section';
        }
    }
    if (count($sections_array) || count($modules_array) || $include || $exclude || $visibility >= 0 || count($cmids_array)) {
        $select_defaultvalue = true;
    } else {
        $select_defaultvalue = false;
    }
    // set date format for course sections
    $weekdateformat = '%b %d';
    // get_string('strftimedateshort');
    if ($sortactivities) {
        $select = 'cm.id, gi.sortorder';
        $from = '{grade_items} gi ' . 'JOIN {modules} m ON gi.itemmodule = m.name ' . 'JOIN {course_modules} cm ON cm.module = m.id AND cm.instance = gi.iteminstance';
        $where = 'gi.courseid = ? AND gi.itemtype = ?';
        $order = 'gi.sortorder';
        $params = array($course->id, 'mod');
        $items = $DB->get_records_sql("SELECT {$select} FROM {$from} WHERE {$where} ORDER BY {$order}", $params);
        $select = 'id,sequence,section,summary';
        $from = '{course_sections}';
        $where = 'course = ? AND sequence IS NOT NULL AND sequence <> ?';
        $order = 'section';
        $params = array($course->id, '');
        $sections = $DB->get_records_sql("SELECT {$select} FROM {$from} WHERE {$where} ORDER BY {$order}", $params);
        if ($items && $sections) {
            $modinfo = get_fast_modinfo($course);
            $rebuild_course_cache = false;
            foreach (array_keys($sections) as $id) {
                $sequence = explode(',', $sections[$id]->sequence);
                $sequence = array_flip($sequence);
                foreach (array_keys($sequence) as $cmid) {
                    if (array_key_exists($cmid, $items)) {
                        // assign new sortorder to activity
                        $sequence[$cmid] = $items[$cmid]->sortorder;
                    } else {
                        if (isset($modinfo->cms[$cmid])) {
                            // no grade book item (e.g. label)
                            $name = urldecode($modinfo->cms[$cmid]->name);
                            $name = block_taskchain_navigation::filter_text($name);
                            $name = trim(strip_tags($name));
                            $sequence[$cmid] = $name;
                            unset($modinfo->cms[$cmid]);
                        } else {
                            unset($sequence[$cmid]);
                            // shouldn't happen !!
                        }
                    }
                }
                uasort($sequence, 'activity_sequence_uasort');
                $sequence = array_keys($sequence);
                $sequence = implode(',', $sequence);
                if ($sequence != $sections[$id]->sequence) {
                    $DB->set_field('course_sections', 'sequence', $sequence, array('id' => $id));
                    $rebuild_course_cache = true;
                }
            }
            if ($rebuild_course_cache) {
                rebuild_course_cache($course->id);
                if (class_exists('course_modinfo')) {
                    // Moodle >= 2.4
                    get_fast_modinfo($course, 0, true);
                } else {
                    // Moodle <= 2.3
                    get_fast_modinfo('reset');
                }
                $course = $DB->get_record('course', array('id' => $course->id));
            }
        }
        unset($items, $sections, $modinfo, $sequence, $name, $cmid, $id);
    }
    $cms = array();
    $modules = array();
    $sections = array();
    $filemods = array();
    $labelmods = array();
    $ratingmods = array();
    $resourcemods = array();
    $gradingmods = array();
    $cutoffdatemods = array();
    $completionfields = array();
    $durationfields = array('completiontimespent');
    $count_cmids = 0;
    $selected_cmids = array();
    $strman = get_string_manager();
    // cache of section visibility by sectionnum
    // Note: could be ommited if we are not bothered about visibility
    // if ($visibility>=0 || array_key_exists('visible', $selected_settings)) {
    // }
    $section_visible = $DB->get_records_menu('course_sections', array('course' => $course->id), 'section', 'section, visible');
    $section_visible = array_map('intval', $section_visible);
    $section_visible[0] = 1;
    // intro is always visible
    $modinfo = get_fast_modinfo($course);
    foreach ($modinfo->sections as $sectionnum => $cmids) {
        // loop through the course modules
        foreach ($cmids as $cmid) {
            if (empty($modinfo->cms[$cmid])) {
                continue;
                // shouldn't happen
            }
            // shortcut to current course modules
            $cm = $modinfo->cms[$cmid];
            $count_cmids++;
            $sections[$sectionnum] = true;
            if (empty($modules[$cm->modname])) {
                $modules[$cm->modname] = get_string('modulename', $cm->modname);
                if ($modhaslibfile = file_exists("{$CFG->dirroot}/mod/{$cm->modname}/lib.php")) {
                    $modcompletion = plugin_supports('mod', $cm->modname, FEATURE_COMPLETION_HAS_RULES, false);
                } else {
                    $modcompletion = false;
                }
                // get completion fields
                if ($enablecompletion) {
                    if ($modcompletion) {
                        $fields = $DB->get_columns($cm->modname);
                        $names = array_keys($fields);
                        $names = preg_grep('/^completion.+$/', $names);
                        $names = array_values($names);
                        // re-index the array
                    } else {
                        $names = array();
                        // no module-specific fields
                        $fields = array();
                    }
                    if ($modhaslibfile) {
                        // fields that are common to all modules - see "lib/moodleform_mod.php"
                        if (plugin_supports('mod', $cm->modname, FEATURE_GRADE_HAS_GRADE, false)) {
                            array_unshift($names, 'completiongrade');
                        }
                        if (plugin_supports('mod', $cm->modname, FEATURE_COMPLETION_TRACKS_VIEWS, false)) {
                            array_unshift($names, 'completionview');
                        }
                    }
                    foreach ($names as $name) {
                        if (empty($completionfields[$name])) {
                            $settings[] = $name;
                            if (isset($_POST[$name]) && is_array($_POST[$name])) {
                                ${$name} = optional_param_array($name, array(), PARAM_INT);
                                ${$name} = array_sum(${$name});
                                // i.e. same as logical AND
                            } else {
                                ${$name} = optional_param($name, 0, PARAM_INT);
                            }
                            if (in_array($name, $durationfields)) {
                                ${$name} *= optional_param($name . '_unit', 1, PARAM_INT);
                            }
                            $completionfields[$name] = get_completionfield($strman, $plugin, $cm->modname, $name, ${$name}, $fields);
                        }
                        $completionfields[$name]->mods[$cm->modname] = $modules[$cm->modname];
                    }
                    unset($fields, $names, $name);
                }
                // get file sitewide upload limits, if any, for this module
                switch ($cm->modname) {
                    case 'assign':
                        $filemods[$cm->modname] = get_config('assignsubmission_file', 'maxbytes');
                        break;
                    case 'assignment':
                        $filemods[$cm->modname] = get_config(null, 'assignment_maxbytes');
                        break;
                    case 'forum':
                        $filemods[$cm->modname] = get_config(null, 'forum_maxbytes');
                        break;
                    case 'workshop':
                        $filemods[$cm->modname] = get_config('workshop', 'maxbytes');
                        break;
                }
                if ($modhaslibfile) {
                    $is_label = plugin_supports('mod', $cm->modname, FEATURE_NO_VIEW_LINK, false) == true;
                    $is_resource = plugin_supports('mod', $cm->modname, FEATURE_MOD_ARCHETYPE, MOD_ARCHETYPE_OTHER) == MOD_ARCHETYPE_RESOURCE;
                    $has_rating = plugin_supports('mod', $cm->modname, FEATURE_RATE, false) == true;
                } else {
                    $is_label = in_array($cm->modname, array('label'));
                    $is_resource = in_array($cm->modname, array('book', 'folder', 'imscp', 'page', 'resource', 'url'));
                    $has_rating = in_array($cm->modname, array('data', 'forum', 'glossary'));
                }
                if ($has_grading = defined('FEATURE_ADVANCED_GRADING')) {
                    // Moodle >= 2.2
                    if ($modhaslibfile) {
                        $has_grading = plugin_supports('mod', $cm->modname, FEATURE_ADVANCED_GRADING, false) == true;
                    } else {
                        $has_grading = in_array($cm->modname, array('assign'));
                    }
                }
                if ($is_label) {
                    $labelmods[] = $cm->modname;
                } else {
                    if ($is_resource) {
                        $resourcemods[] = $cm->modname;
                    }
                }
                if ($has_rating) {
                    $ratingmods[$cm->modname] = $modules[$cm->modname];
                }
                // ==================================
                // disabled until fully functional
                // ==================================
                // if ($has_grading) {
                //     $gradingareas[$cm->modname] = grading_manager::available_areas('mod_'.$cm->modname);
                //     if (empty($gradingareas[$cm->modname])) {
                //         unset($gradingareas[$cm->modname]);
                //     } else {
                //         $gradingmods[$cm->modname] = $modules[$cm->modname];
                //     }
                // }
                if (in_array($cm->modname, array('assign'))) {
                    $cutoffdatemods[$cm->modname] = $modules[$cm->modname];
                }
                unset($is_label, $is_resource, $has_rating, $has_grading, $modhaslibfile, $modcompletion);
            }
            if (empty($cms[$sectionnum])) {
                $cms[$sectionnum] = array();
            }
            if (in_array($cmid, $cmids_array)) {
                $selected = ' selected="selected"';
            } else {
                $selected = '';
            }
            $url = $PAGE->theme->pix_url('icon', $cm->modname)->out();
            $style = ' style="background-image: url(' . $url . '); background-repeat: no-repeat; background-position: 1px 2px; min-height: 20px; padding-left: 12px;"';
            $name = urldecode($cm->name);
            $name = block_taskchain_navigation::filter_text($name);
            $name = trim(strip_tags($name));
            $name = block_taskchain_navigation::trim_text($name, $cm_namelength, $cm_headlength, $cm_taillength);
            $cms[$sectionnum][] = '<option value="' . $cm->id . '"' . $selected . $style . '>' . $name . '</option>';
            $select = $select_defaultvalue;
            if ($select && count($sections_array)) {
                $select = in_array($cm->sectionnum, $sections_array);
            }
            if ($select && count($modules_array)) {
                $select = in_array($cm->modname, $modules_array);
            }
            if ($select && $include) {
                $select = preg_match('/' . $include . '/', $cm->name);
            }
            if ($select && $exclude) {
                $select = !preg_match('/' . $exclude . '/', $cm->name);
            }
            if ($select && $visibility >= 0) {
                if ($section_visible[$cm->sectionnum]) {
                    $select = $visibility == $cm->visible;
                } else {
                    // in a hidden section, we need to check the activity module's "visibleold" setting
                    $select = $visibility == $DB->get_field('course_modules', 'visibleold', array('id' => $cm->id));
                }
            }
            if ($select && count($cmids_array)) {
                $select = in_array($cm->id, $cmids_array);
            }
            if ($select) {
                $selected_cmids[$cm->id] = $cm;
            }
        }
    }
    // $completionfields now contains additional "completion"
    // fields used by activity modules on this Moodle site
    // these fields have also been added to $settings
    $selected_settings = array();
    if ($action == 'apply') {
        foreach ($settings as $setting) {
            $select = 'select_' . $setting;
            if (optional_param($select, 0, PARAM_INT)) {
                $selected_settings[] = $setting;
            }
        }
    }
    $sectionmenu = array(-1 => get_string('currentsection', $plugin), '-' => '-----');
    // separator
    $sectionnums = array_keys($sections);
    if ($sections = $DB->get_records('course_sections', array('course' => $course->id), 'section', 'section,name,summary')) {
        foreach ($sections as $sectionnum => $sectioninfo) {
            // extract section title from section name or summary
            if ($text = block_taskchain_navigation::filter_text($sectioninfo->name)) {
                $text = block_taskchain_navigation::trim_text($text, $section_namelength, $section_headlength, $section_taillength);
            } else {
                if ($text = block_taskchain_navigation::filter_text($sectioninfo->summary)) {
                    // remove script and style blocks
                    $select = '/\\s*<(script|style)[^>]*>.*?<\\/\\1>\\s*/is';
                    $text = preg_replace($select, '', $text);
                    if ($tags = $sectiontags) {
                        $tags = preg_split('/[^a-zA-Z0-9]+/', $tags);
                        $tags = array_map('trim', $tags);
                        $tags = array_filter($tags);
                        $tags = implode('|', $tags);
                        if ($tags) {
                            $tags .= '|';
                        }
                    }
                    $tags .= 'h1|h2|h3|h4|h5|h6';
                    if (preg_match('/<(' . $tags . ')\\b[^>]*>(.*?)<\\/\\1>/is', $text, $matches)) {
                        $text = $matches[2];
                    } else {
                        // otherwise, get first line of text
                        $text = preg_split('/<br[^>]*>/', $text);
                        $text = array_map('strip_tags', $text);
                        $text = array_map('trim', $text);
                        $text = array_filter($text);
                        if (empty($text)) {
                            $text = '';
                        } else {
                            $text = reset($text);
                        }
                    }
                    $text = trim(strip_tags($text));
                    $text = block_taskchain_navigation::trim_text($text, $section_namelength, $section_taillength, $section_taillength);
                }
            }
            // set default section title, if necessary
            if ($text == '') {
                $format = 'format_' . $course->format;
                switch (true) {
                    case $sectiontype == 'week' && $sectionnum > 0:
                        $date = $course->startdate + 7200 + ($sectionnum - 1) * 604800;
                        $text = userdate($date, $weekdateformat) . ' - ' . userdate($date + 518400, $weekdateformat);
                        break;
                    case $strman->string_exists('section' . $sectionnum . 'name', $format):
                        $text = get_string('section' . $sectionnum . 'name', $format);
                        break;
                    case $strman->string_exists('sectionname', $format):
                        $text = get_string('sectionname', $format) . ' ' . $sectionnum;
                        break;
                    case $strman->string_exists($sectiontype, 'moodle'):
                        $text = get_string('sectionname') . ' ' . $sectionnum;
                        break;
                    default:
                        $text = $sectiontype . ' ' . $sectionnum;
                }
            }
            // assign section title
            if (in_array($sectionnum, $sectionnums)) {
                $sections[$sectionnum] = $text;
            } else {
                unset($sections[$sectionnum]);
            }
            $sectionmenu[$sectionnum] = $text;
        }
    }
    foreach ($cms as $sectionnum => $options) {
        unset($cms[$sectionnum]);
        $text = $sections[$sectionnum];
        $cms[$text] = '<optgroup label="' . $text . '">' . "\n" . implode("\n", $options) . '</optgroup>';
    }
    $cms = implode("\n", $cms);
    $cms = '<select id="id_cmids" name="cmids[]" size="' . min($select_size, $count_cmids) . '" multiple="multiple">' . "\n" . $cms . "\n" . '</select>' . "\n";
    foreach ($sections as $sectionnum => $text) {
        if (in_array($sectionnum, $sections_array)) {
            $selected = ' selected="selected"';
        } else {
            $selected = '';
        }
        $sections[$sectionnum] = '<option value="' . $sectionnum . '"' . $selected . '>' . $text . '</option>';
    }
    $count_sections = count($sections);
    $sections = implode("\n", $sections);
    $sections = '<select id="id_sections" name="sections[]" size="' . min($select_size, $count_sections) . '" multiple="multiple">' . "\n" . $sections . "\n" . '</select>' . "\n";
    asort($modules);
    foreach ($modules as $module => $text) {
        if (in_array($module, $modules_array)) {
            $selected = ' selected="selected"';
        } else {
            $selected = '';
        }
        if (empty($CFG->modpixpath)) {
            $style = '';
            // shouldn't happen
        } else {
            $url = $CFG->modpixpath . '/' . $module . '/icon.gif';
            $style = ' style="background-image: url(' . $url . '); background-repeat: no-repeat; background-position: 1px 2px; min-height: 20px; padding-left: 20px;"';
        }
        $modules[$module] = '<option value="' . $module . '"' . $selected . $style . '>' . $text . '</option>';
    }
    $count_modules = count($modules);
    $modules = implode("\n", $modules);
    $modules = '<select id="id_modules" name="modules[]" size="' . min($select_size, $count_modules) . '" multiple="multiple">' . "\n" . $modules . "\n" . '</select>' . "\n";
    $days = array();
    for ($i = 1; $i <= 31; $i++) {
        $days[$i] = $i;
    }
    $months = array();
    for ($i = 1; $i <= 12; $i++) {
        $months[$i] = userdate(gmmktime(12, 0, 0, $i, 15, 2000), '%B');
    }
    $years = array();
    for ($i = 1970; $i <= 2020; $i++) {
        $years[$i] = $i;
    }
    $hours = array();
    for ($i = 0; $i <= 23; $i++) {
        $hours[$i] = sprintf('%02d', $i);
    }
    $minutes = array();
    for ($i = 0; $i < 60; $i += 5) {
        $minutes[$i] = sprintf('%02d', $i);
    }
    $visibilitymenu = array(-1 => '', 0 => get_string('hidden', 'grades'), 1 => get_string('visible'));
    $visiblemenu = array(0 => get_string('hide'), 1 => get_string('show'));
    $ratings = new rating_manager();
    $ratings = $ratings->get_aggregate_types();
    $gradings = array();
    $maxgrades = array();
    $gradepassmenu = array();
    for ($i = 100; $i >= 1; $i--) {
        $maxgrades[$i] = $i . '%';
        $gradepassmenu[$i] = $i . '%';
    }
    $maxgrades[0] = get_string('nograde');
    $gradecategories = grade_get_categories_menu($course->id);
    $groupmodes = array(NOGROUPS => get_string('groupsnone'), SEPARATEGROUPS => get_string('groupsseparate'), VISIBLEGROUPS => get_string('groupsvisible'));
    //groupings selector - used for normal grouping mode or also when restricting access with groupmembersonly
    $groupings = array();
    if ($records = $DB->get_records('groupings', array('courseid' => $course->id))) {
        $groupings = array(0 => get_string('none'));
        foreach ($records as $record) {
            $groupings[$record->id] = format_string($record->name);
        }
    }
    $indentmenu = array();
    for ($i = -5; $i <= 5; $i++) {
        if ($i == 0) {
            $indentmenu[$i] = get_string('reset');
        } else {
            $indentmenu[$i] = ($i < 0 ? '-' : '+') . abs($i);
        }
    }
    $positionmenu = array(1 => get_string('startofsection', $plugin), 2 => get_string('endofsection', $plugin));
    if ($strman->string_exists('direction_from', 'availability_date')) {
        // Moodle >= 2.7
        $conditiondatedirectionmenu = array(1 => get_string('direction_from', 'availability_date'), 2 => get_string('direction_until', 'availability_date'));
    } else {
        // Moodle >= 2.6
        $conditiondatedirectionmenu = array(1 => get_string('from'), 2 => get_string('durationuntil', 'calendar'));
    }
    $conditiongradeitemidmenu = array();
    $conditioncmidmenu = array();
    $conditionfieldnamemenu = array();
    $conditionfieldoperatormenu = array();
    $conditiongroupidmenu = array();
    $conditiongroupingidmenu = array();
    $conditionactionmenu = array();
    $conditioncmcompletionmenu = array();
    if ($enableavailability) {
        $basemenuitems = array('0' => get_string('none', 'moodle'), '00' => '=====', PREVIOUS_ANY_COURSE => get_string('previousanycourse', $plugin), PREVIOUS_ANY_SECTION => get_string('previousanysection', $plugin), PREVIOUS_SAME_COURSE => get_string('previoussamecourse', $plugin), PREVIOUS_SAME_SECTION => get_string('previoussamesection', $plugin), '000' => '=====', NEXT_ANY_COURSE => get_string('nextanycourse', $plugin), NEXT_ANY_SECTION => get_string('nextanysection', $plugin), NEXT_SAME_COURSE => get_string('nextsamecourse', $plugin), NEXT_SAME_SECTION => get_string('nextsamesection', $plugin), '0000' => '=====');
        $categories = grade_category::fetch_all(array('courseid' => $course->id));
        if ($items = grade_item::fetch_all(array('courseid' => $course->id))) {
            uasort($items, 'grade_items_uasort');
            $spaces = '';
            $space = '│ ';
            $ids = array_keys($items);
            foreach ($ids as $i => $id) {
                $item = $items[$id];
                if ($item->is_course_item()) {
                    $depth = 0;
                    $index = '';
                } else {
                    if ($item->is_category_item()) {
                        if ($depth = $DB->get_field('grade_categories', 'depth', array('id' => $item->iteminstance))) {
                            if ($depth > 1) {
                                $depth--;
                            }
                        }
                        $spaces = str_repeat($space, $depth - 1);
                    } else {
                        $spaces = str_repeat($space, $depth);
                    }
                }
                $name = $spaces . get_tree_char($depth, $i, $ids, $items, $categories) . $item->get_name(true);
                $name = block_taskchain_navigation::trim_text($name, $cm_namelength, $cm_headlength + strlen($spaces), $cm_taillength);
                $items[$id] = $name;
            }
            if (count($items)) {
                $conditiongradeitemidmenu = $basemenuitems + $items;
            }
        }
        if ($enablecompletion) {
            $items = array();
            $modinfo = get_fast_modinfo($course);
            foreach ($modinfo->cms as $id => $cm) {
                if ($cm->completion) {
                    $items[$id] = $cm->name;
                }
            }
            if (count($items)) {
                asort($items);
                $conditioncmidmenu = $basemenuitems + $items;
            }
        }
        $conditionfieldnamemenu = array('' => get_string('none', 'moodle'));
        $conditionfieldoperatormenu = array();
        $filepath = $CFG->dirroot . '/availability/condition/profile/classes/frontend.php';
        if (file_exists($filepath)) {
            // Moodle >= 2.7
            $contents = file_get_contents($filepath);
            $search = "/'([a-zA-Z0-9]+)' => get_user_field_name\\('\\1'\\)/";
            if (preg_match_all($search, $contents, $items)) {
                foreach ($items[1] as $item) {
                    $conditionfieldnamemenu[$item] = get_user_field_name($item);
                }
            }
            $search = "/(?<=')op_([a-zA-Z0-9]+)(?=')/";
            if (preg_match_all($search, $contents, $items)) {
                foreach ($items[1] as $i => $item) {
                    $conditionfieldoperatormenu[$item] = get_string($items[0][$i], 'availability_profile');
                }
            }
            require_once $CFG->dirroot . '/user/profile/lib.php';
            if ($items = profile_get_custom_fields(true)) {
                foreach ($items as $item) {
                    $conditionfieldnamemenu[$item->shortname] = $item->name;
                }
            }
        } else {
            if (method_exists('condition_info', 'get_condition_user_fields')) {
                // Moodle >= 2.4
                if ($items = condition_info::get_condition_user_fields(array('context' => $course->context))) {
                    $conditionfieldnamemenu += $items;
                }
                $conditionfieldoperatormenu = condition_info::get_condition_user_field_operators();
            } else {
                // Moodle <= 2.3 doesn't have conditional user fields
                $conditionfieldnamemenu = array();
            }
        }
        if ($dbman->field_exists('course_modules', 'availability')) {
            // Moodle >= 2.7
            if ($items = groups_get_all_groups($course->id)) {
                foreach ($items as $item) {
                    $name = $item->name;
                    $name = block_taskchain_navigation::filter_text($name);
                    $name = block_taskchain_navigation::trim_text($name);
                    $conditiongroupidmenu[$item->id] = $name;
                }
            }
            if ($items = groups_get_all_groupings($course->id)) {
                foreach ($items as $item) {
                    $name = $item->name;
                    $name = block_taskchain_navigation::filter_text($name);
                    $name = block_taskchain_navigation::trim_text($name);
                    $conditiongroupingidmenu[$item->id] = $name;
                }
            }
        }
        $str = new stdClass();
        if ($strman->string_exists('accessrestrictions', 'availability')) {
            // Moodle >= 2.7
            $str->accessrestrictions = get_string('accessrestrictions', 'availability');
            $str->datetitle = get_string('title', 'availability_date');
            $str->userfield = get_string('conditiontitle', 'availability_profile');
            $str->gradetitle = get_string('title', 'availability_grade');
            $str->grademin = get_string('option_min', 'availability_grade');
            $str->grademax = get_string('option_max', 'availability_grade');
            $str->activitycompletion = get_string('activitycompletion', 'completion');
            $conditioncmcompletionmenu = array(COMPLETION_COMPLETE => get_string('option_complete', 'availability_completion'), COMPLETION_INCOMPLETE => get_string('option_incomplete', 'availability_completion'), COMPLETION_COMPLETE_PASS => get_string('option_pass', 'availability_completion'), COMPLETION_COMPLETE_FAIL => get_string('option_fail', 'availability_completion'));
            $str->showavailability = get_string('display', 'form');
            // Note: CONDITION_STUDENTVIEW_xxx constants are not defined in Moodle >= 2.9
            $hide = defined('CONDITION_STUDENTVIEW_HIDE') ? CONDITION_STUDENTVIEW_HIDE : 0;
            $show = defined('CONDITION_STUDENTVIEW_SHOW') ? CONDITION_STUDENTVIEW_SHOW : 1;
            $conditionactionmenu = array($hide => get_string('hidden_all', 'availability'), $show => get_string('shown_all', 'availability'));
        } else {
            // Moodle <= 2.6
            $str->accessrestrictions = get_string('availabilityconditions', 'condition');
            $str->datetitle = get_string('date');
            if ($strman->string_exists('userfield', 'condition')) {
                // Moodle >= 2.4
                $str->userfield = get_string('userfield', 'condition');
            }
            $str->gradetitle = get_string('gradecondition', 'condition');
            $str->grademin = get_string('grade_atleast', 'condition');
            $str->grademax = get_string('grade_upto', 'condition');
            $str->activitycompletion = get_string('completioncondition', 'condition');
            $conditioncmcompletionmenu = array(COMPLETION_COMPLETE => get_string('completion_complete', 'condition'), COMPLETION_INCOMPLETE => get_string('completion_incomplete', 'condition'), COMPLETION_COMPLETE_PASS => get_string('completion_pass', 'condition'), COMPLETION_COMPLETE_FAIL => get_string('completion_fail', 'condition'));
            $str->showavailability = get_string('showavailability', 'condition');
            $conditionactionmenu = array(CONDITION_STUDENTVIEW_HIDE => get_string('showavailability_hide', 'condition'), CONDITION_STUDENTVIEW_SHOW => get_string('showavailability_show', 'condition'));
        }
        $icon = new pix_icon('i/hide', '');
        $icon = $OUTPUT->render($icon);
        $str->showavailability = $icon . ' ' . $str->showavailability;
        if ($enablecompletion) {
            $str->conditioncmungraded = get_string('conditioncmungraded', $plugin);
            $str->conditioncmresources = get_string('conditioncmresources', $plugin);
            $str->conditioncmlabels = get_string('conditioncmlabels', $plugin);
        }
    }
    if ($enablecompletion) {
        $completiontrackingmenu = array(0 => get_string('completion_none', 'completion'), 1 => get_string('completion_manual', 'completion'), 2 => get_string('completion_automatic', 'completion'));
    } else {
        $completiontrackingmenu = array();
    }
    if (class_exists('core_competency\\course_module_competency')) {
        // Moodle >= 3.1
        $competencyrulemenu = \core_competency\course_module_competency::get_ruleoutcome_list();
    } else {
        $competencyrulemenu = array();
    }
    $filtermenu = array(TEXTFILTER_INHERIT => '', TEXTFILTER_OFF => get_string('off', 'filters'), TEXTFILTER_ON => get_string('on', 'filters'));
    $filterdefaulton = get_string('defaultx', 'filters', $filtermenu[TEXTFILTER_ON]);
    $filterdefaultoff = get_string('defaultx', 'filters', $filtermenu[TEXTFILTER_OFF]);
    // initialize state flags
    $success = null;
    $started_list = false;
    $reset_filter_caches = false;
    $rebuild_course_cache = false;
    $regrade_course_grades = false;
    // create grade categories, if necessary
    if ($creategradecats) {
        $modinfo = get_fast_modinfo($course);
        // default aggregate is "simple weighted mean of grades"
        // TODO: set default aggregate from form
        $aggregation = GRADE_AGGREGATE_WEIGHTED_MEAN2;
        // get max sortorder from database
        if ($sortorder = $DB->get_field('grade_items', 'MAX(sortorder)', array('courseid' => $course->id))) {
            $sortorder++;
        } else {
            $sortorder = 1;
        }
        // create course grade category - not usually necessary
        $fullname = '?';
        // special name for course grade category
        $params = array('courseid' => $course->id, 'depth' => 1, 'fullname' => $fullname);
        if ($course_grade_category_id = $DB->get_field('grade_categories', 'id', $params)) {
            $DB->set_field('grade_categories', 'aggregation', $aggregation, $params);
        } else {
            $course_grade_category_id = create_grade_category($course, $fullname, null, $aggregation, 0.0, $sortorder++, GRADE_DISPLAY_TYPE_PERCENTAGE);
        }
        // create/update section grade categories
        foreach ($sectionmenu as $sectionnum => $sectiontext) {
            if (empty($modinfo->sections[$sectionnum])) {
                continue;
            }
            $grade_category_id = 0;
            foreach ($modinfo->sections[$sectionnum] as $cmid) {
                if (empty($modinfo->cms[$cmid])) {
                    continue;
                }
                $params = array('courseid' => $course->id, 'itemtype' => 'mod', 'itemmodule' => $modinfo->cms[$cmid]->modname, 'iteminstance' => $modinfo->cms[$cmid]->instance);
                if (!($grade_items = $DB->get_records('grade_items', $params))) {
                    continue;
                }
                // note that some activities can have more than on grade item per instance
                // e.g. mod_workshop creates both "submission" and "assessment" grade items
                foreach ($grade_items as $grade_item) {
                    if ($grade_category_id == 0) {
                        $fullname = $sectiontext;
                        $params = array('courseid' => $course->id, 'depth' => 2, 'fullname' => $fullname);
                        if ($grade_category_id = $DB->get_field('grade_categories', 'id', $params)) {
                            $DB->set_field('grade_categories', 'aggregation', $aggregation, array('id' => $grade_category_id));
                        } else {
                            $grade_category_id = create_grade_category($course, $fullname, $course_grade_category_id, $aggregation, 0.0, $sortorder++);
                        }
                    }
                    $DB->set_field('grade_items', 'categoryid', $grade_category_id, array('id' => $grade_item->id));
                    $DB->set_field('grade_items', 'sortorder', $sortorder++, array('id' => $grade_item->id));
                }
            }
        }
        $regrade_course_grades = true;
    }
    // remove grade categories, if necessary
    if ($removegradecats) {
        $select = 'DISTINCT categoryid';
        $from = '{grade_items}';
        $where = 'courseid = ? AND itemtype <> ? AND itemtype <> ?';
        $params = array($course->id, 'course', 'category');
        $select = "id IN (SELECT {$select} FROM {$from} WHERE {$where})";
        if ($ids = $DB->get_records_select('grade_categories', $select, $params, 'id', 'id,path')) {
            foreach (array_keys($ids) as $id) {
                $ids[$id] = trim($ids[$id]->path, '/');
            }
            $ids = array_filter($ids);
            $ids = implode('/', $ids);
            $ids = explode('/', $ids);
            $ids = array_unique($ids);
        } else {
            if ($ids = $DB->get_records('grade_categories', array('courseid' => $course->id, 'depth' => 1, 'fullname' => '?'))) {
                $ids = array(key($ids));
                // the course category
            }
        }
        if (empty($ids)) {
            $ids = '';
            $params = array();
        } else {
            list($ids, $params) = $DB->get_in_or_equal($ids, SQL_PARAMS_QM, '', false);
            // i.e. NOT IN
        }
        $select = 'courseid = ?' . ($ids == '' ? '' : " AND id {$ids}");
        array_unshift($params, $course->id);
        if ($DB->delete_records_select('grade_categories', $select, $params)) {
            $regrade_course_grades = true;
        }
        $select = 'itemtype = ? AND courseid = ?' . ($ids == '' ? '' : " AND iteminstance {$ids}");
        array_unshift($params, 'category');
        if ($DB->delete_records_select('grade_items', $select, $params)) {
            $regrade_course_grades = true;
        }
        unset($select, $from, $where, $params, $ids, $id);
    }
    // sort grade categories, if necessary
    if ($sortgradeitems) {
        $select = 'courseid = ? AND itemtype = ?';
        $params = array($course->id, 'mod');
        if ($items = $DB->get_records_select('grade_items', $select, $params, 'sortorder')) {
            $categories = array();
            foreach ($items as $item) {
                $categoryid = $item->categoryid;
                $cmid = 0;
                foreach ($modinfo->cms as $cmid => $cm) {
                    if ($item->itemmodule == $cm->modname && $item->iteminstance == $cm->instance) {
                        $cmid = $cm->id;
                        break;
                    }
                }
                if ($cmid) {
                    if (empty($categories[$categoryid])) {
                        $categories[$categoryid] = array();
                    }
                    $categories[$categoryid][$cmid] = $item->sortorder;
                }
            }
            $modinfo_cmids = array_keys($modinfo->cms);
            foreach (array_keys($categories) as $categoryid) {
                // get available cm ids and sortorder numbers
                $cmids = array_keys($categories[$categoryid]);
                $sortorder = array_values($categories[$categoryid]);
                // get course page sort order for each cm
                $cmids = array_flip($cmids);
                foreach (array_keys($cmids) as $cmid) {
                    $cmids[$cmid] = array_search($cmid, $modinfo_cmids);
                }
                // sort cmids according to course page order
                asort($cmids);
                // remove course page order info
                $cmids = array_keys($cmids);
                // assign an available sort order to each cm's grade item
                $select = 'courseid = ? AND itemtype = ? AND itemmodule = ? AND iteminstance = ?';
                foreach ($cmids as $i => $cmid) {
                    $params = array($course->id, 'mod', $modinfo->cms[$cmid]->modname, $modinfo->cms[$cmid]->instance);
                    $DB->set_field_select('grade_items', 'sortorder', $sortorder[$i], $select, $params);
                }
            }
        }
        unset($items, $categories, $cmids, $sortorder, $modinfo_cmids);
    }
    // update activities, if necessary
    if (count($selected_cmids) && (count($selected_settings) || $action == 'delete')) {
        $success = true;
        $fields = array('assign' => array('availablefrom' => 'allowsubmissionsfromdate', 'availableuntil' => 'duedate', 'maxgrade' => 'grade', 'rating' => ''), 'assignment' => array('availablefrom' => 'timeavailable', 'availableuntil' => 'timedue', 'maxgrade' => 'grade', 'rating' => ''), 'attendance' => array('availablefrom' => '', 'availableuntil' => '', 'maxgrade' => 'grade', 'rating' => ''), 'choice' => array('availablefrom' => 'timeopen', 'availableuntil' => 'timeclose', 'maxgrade' => '', 'rating' => ''), 'data' => array('availablefrom' => 'timeavailablefrom', 'availableuntil' => 'timeavailableto', 'maxgrade' => 'scale', 'rating' => 'assessed'), 'feedback' => array('availablefrom' => 'timeopen', 'availableuntil' => 'timeclose', 'maxgrade' => '', 'rating' => ''), 'forum' => array('availablefrom' => 'assesstimestart', 'availableuntil' => 'assesstimefinish', 'maxgrade' => 'scale', 'rating' => 'assessed'), 'glossary' => array('availablefrom' => 'assesstimestart', 'availableuntil' => 'assesstimefinish', 'maxgrade' => 'scale', 'rating' => 'assessed'), 'hotpot' => array('availablefrom' => 'timeopen', 'availableuntil' => 'timeclose', 'maxgrade' => 'grade', 'rating' => ''), 'lesson' => array('availablefrom' => 'available', 'availableuntil' => 'deadline', 'maxgrade' => 'grade', 'rating' => ''), 'questionnaire' => array('availablefrom' => 'opendate', 'availableuntil' => 'closedate', 'maxgrade' => 'grade', 'rating' => ''), 'quiz' => array('availablefrom' => 'timeopen', 'availableuntil' => 'timeclose', 'maxgrade' => 'grade', 'rating' => ''), 'reader' => array('availablefrom' => 'timeopen', 'availableuntil' => 'timeclose', 'maxgrade' => 'maxgrade', 'rating' => ''), 'scorm' => array('availablefrom' => 'timeopen', 'availableuntil' => 'timeclose', 'maxgrade' => 'maxgrade', 'rating' => ''), 'taskchain' => array('availablefrom' => 'timeopen', 'availableuntil' => 'timeclose', 'maxgrade' => 'gradelimit', 'rating' => ''), 'workshop' => array('availablefrom' => 'assessmentstart', 'availableuntil' => 'assessmentend', 'maxgrade' => 'grade ', 'rating' => ''));
        $table_columns = array();
        // make sure mod pix path is set
        if (empty($CFG->modpixpath)) {
            $CFG->modpixpath = $CFG->dirroot . '/mod';
        }
        foreach ($selected_cmids as $cmid => $cm) {
            $updated = false;
            $skipped = false;
            $regrade_item_id = 0;
            $modhaslibfile = file_exists("{$CFG->dirroot}/mod/{$cm->modname}/lib.php");
            // get the $instance of this $cm (include idnumber for grading)
            $instance = $DB->get_record($cm->modname, array('id' => $cm->instance));
            $instance->cmidnumber = $cm->idnumber;
            // get module context
            $modulecontext = context_module::instance($cm->id);
            if ($action == 'delete') {
                if (function_exists('course_delete_module')) {
                    // Moodle >= 2.5
                    course_delete_module($cm->id);
                } else {
                    // Moodle <= 2.4
                    $filepath = $CFG->dirroot . '/mod/' . $cm->modname . '/lib.php';
                    if (!file_exists($filepath)) {
                        $msg = "{$cm->modname} lib.php not found at {$filepath}";
                        echo $OUTPUT->notification($msg);
                    }
                    require_once $filepath;
                    $deleteinstancefunction = $cm->modname . '_delete_instance';
                    if (!function_exists($deleteinstancefunction)) {
                        $msg = "{$cm->modname} delete function not found ({$deleteinstancefunction})";
                        echo $OUTPUT->notification($msg);
                    }
                    // copied from "course/mod.php"
                    if (!$deleteinstancefunction($cm->instance)) {
                        $msg = "Could not delete the {$cm->modname} (instance id={$cm->instance})";
                        echo $OUTPUT->notification($msg);
                    }
                    if (!delete_course_module($cm->id)) {
                        $msg = "Could not delete the {$cm->modname} (coursemodule, id={$cm->id})";
                        echo $OUTPUT->notification($msg);
                    }
                    if (!($sectionid = $DB->get_field('course_sections', 'id', array('course' => $cm->course, 'section' => $cm->sectionnum)))) {
                        $msg = "Could not get section id (course id={$cm->course}, section num={$cm->sectionnum})";
                        echo $OUTPUT->notification($msg);
                    }
                    if (!delete_mod_from_section($cm->id, $sectionid)) {
                        $msg = "Could not delete the {$cm->modname} (id={$cm->id}) from that section (id={$sectionid})";
                        echo $OUTPUT->notification($msg);
                    }
                    add_to_log($cm->course, 'course', 'delete mod', "view.php?id={$cm->course}", "{$cm->modname} {$cm->instance}", $cm->id);
                }
                $rebuild_course_cache = true;
                $updated = true;
            }
            // only check completion/conditions once per $cm
            $conditions_checked = false;
            $completion_updated = false;
            // Note: $selected_settings should only contain anything if $action=='apply'
            foreach ($selected_settings as $setting) {
                switch ($setting) {
                    // activity instance settings
                    case 'availablefrom':
                    case 'availableuntil':
                    case 'availablecutoff':
                    case 'maxgrade':
                    case 'rating':
                        if ($cm->modname == 'taskchain') {
                            $table = 'taskchain_chains';
                            $id = $DB->get_field($table, 'id', array('parenttype' => 0, 'parentid' => $cm->instance));
                        } else {
                            $table = $cm->modname;
                            $id = $cm->instance;
                        }
                        // get list of fields in this $table
                        if (empty($table_columns[$table])) {
                            $table_columns[$table] = $DB->get_columns($table);
                            foreach (array_keys($table_columns[$table]) as $field) {
                                $table_columns[$table][$field] = true;
                            }
                        }
                        // convert setting name to database field name
                        if (isset($fields[$cm->modname][$setting])) {
                            $field = $fields[$cm->modname][$setting];
                        } else {
                            if ($setting == 'availablecutoff') {
                                $field = 'cutoffdate';
                            } else {
                                $field = $setting;
                            }
                        }
                        // update activity instance record, if field exists
                        if (empty($table_columns[$table][$field])) {
                            $skipped = true;
                        } else {
                            if ($DB->set_field($table, $field, ${$setting}, array('id' => $id))) {
                                // $$ is on purpose
                                $updated = true;
                            } else {
                                $success = false;
                            }
                        }
                        break;
                        // course_module settings
                    // course_module settings
                    case 'visible':
                        if ($section_visible[$cm->sectionnum]) {
                            $rebuild_course_cache = true;
                            $field = 'visible';
                        } else {
                            // hidden section - use "visibleold" field
                            // Note: there is no need to rebuild cache
                            $field = 'visibleold';
                        }
                        if ($DB->set_field('course_modules', $field, ${$setting}, array('id' => $cm->id))) {
                            $updated = true;
                        } else {
                            $success = false;
                        }
                        break;
                    case 'indent':
                        switch (true) {
                            case $indent == 0:
                                $set = 'indent = 0';
                                break;
                            case $indent > 0:
                                $set = "indent = (indent + {$indent})";
                                break;
                            case $indent < 0:
                                $set = "indent = (CASE WHEN indent < ABS({$indent}) THEN 0 ELSE indent - ABS({$indent}) END)";
                                break;
                        }
                        if ($DB->execute("UPDATE {$CFG->prefix}course_modules SET {$set} WHERE id = {$cm->id}")) {
                            $rebuild_course_cache = true;
                            $updated = true;
                        } else {
                            $success = false;
                        }
                        break;
                    case 'section':
                        if ($cm->sectionnum == $section) {
                            $skipped = true;
                        } else {
                            // remove cm from old section
                            $params = array('course' => $course->id, 'section' => $cm->sectionnum);
                            if ($sectionid = $DB->get_field('course_sections', 'id', $params)) {
                                $sequence = $DB->get_field('course_sections', 'sequence', $params);
                                if (is_string($sequence)) {
                                    $sequence = explode(',', $sequence);
                                    $sequence = array_filter($sequence);
                                    // remove blanks
                                    $sequence = preg_grep('/^' . $cm->id . '$/', $sequence, PREG_GREP_INVERT);
                                    $sequence = implode(',', $sequence);
                                    $DB->set_field('course_sections', 'sequence', $sequence, $params);
                                }
                                // add cm to target $section
                                if ($position == 1) {
                                    $add_cm_to_sequence = 'array_unshift';
                                    // prepend to start of section
                                } else {
                                    $add_cm_to_sequence = 'array_push';
                                    // append to end of section
                                }
                                $params = array('course' => $course->id, 'section' => $section >= 0 ? $section : $cm->sectionnum);
                                $sectionid = $DB->get_field('course_sections', 'id', $params);
                                $sequence = $DB->get_field('course_sections', 'sequence', $params);
                                if (is_string($sequence)) {
                                    $sequence = explode(',', $sequence);
                                    $sequence = array_filter($sequence);
                                    // remove blanks
                                    $sequence = preg_grep('/^' . $cm->id . '$/', $sequence, PREG_GREP_INVERT);
                                } else {
                                    $sequence = array();
                                    // shouldn't happen !!
                                }
                                $add_cm_to_sequence($sequence, $cm->id);
                                $sequence = implode(',', $sequence);
                                $DB->set_field('course_sections', 'sequence', $sequence, $params);
                                $DB->set_field('course_modules', 'section', $sectionid, array('id' => $cm->id));
                                $updated = true;
                                $rebuild_course_cache = true;
                            }
                        }
                        break;
                        // uploadlimit
                    // uploadlimit
                    case 'uploadlimit':
                        switch ($cm->modname) {
                            case 'assign':
                                // Moodle >= 2.3
                                $table = 'assign_plugin_config';
                                $params = array('assignment' => $cm->instance, 'subtype' => 'assignsubmission', 'plugin' => 'file', 'name' => 'maxsubmissionsizebytes');
                                if ($DB->record_exists($table, $params)) {
                                    if ($DB->set_field($table, 'value', ${$setting}, $params)) {
                                        $updated = true;
                                    } else {
                                        $success = false;
                                    }
                                } else {
                                    $params['value'] = ${$setting};
                                    if ($DB->insert_record($table, $params)) {
                                        $updated = true;
                                    } else {
                                        $success = false;
                                    }
                                }
                                break;
                            case 'assignment':
                                // Moodle <= 2.2
                            // Moodle <= 2.2
                            case 'forum':
                            case 'workshop':
                                if ($DB->set_field($cm->modname, 'maxbytes', ${$setting}, array('id' => $cm->instance))) {
                                    $updated = true;
                                } else {
                                    $success = false;
                                }
                                break;
                                // skip all other modules
                            // skip all other modules
                            default:
                                $skipped = true;
                        }
                        break;
                        // course module settings
                    // course module settings
                    case 'groupmode':
                    case 'groupingid':
                    case 'groupmembersonly':
                        if ($DB->set_field('course_modules', $setting, ${$setting}, array('id' => $cm->id))) {
                            $updated = true;
                            $rebuild_course_cache = true;
                        } else {
                            $success = false;
                        }
                        break;
                        // gradebook settings
                    // gradebook settings
                    case 'gradecat':
                    case 'gradeitemhidden':
                    case 'gradepass':
                        $select = 'courseid = ? AND itemtype = ? AND itemmodule = ? AND iteminstance = ?';
                        $params = array($course->id, 'mod', $cm->modname, $cm->instance);
                        switch ($setting) {
                            case 'gradecat':
                                $field = 'categoryid';
                                break;
                            case 'gradeitemhidden':
                                $field = 'hidden';
                                break;
                            default:
                                $field = $setting;
                        }
                        if ($DB->set_field_select('grade_items', $field, ${$setting}, $select, $params)) {
                            $updated = true;
                            $regrade_item_id = $DB->get_field_select('grade_items', 'id', $select, $params);
                        } else {
                            $success = false;
                        }
                        break;
                        // extra credit
                    // extra credit
                    case 'extracredit':
                        $skipped = true;
                        $select = 'courseid = ? AND itemtype = ? AND itemmodule = ? AND iteminstance = ?';
                        $params = array($course->id, 'mod', $cm->modname, $cm->instance);
                        if ($grade_item = $DB->get_record_select('grade_items', $select, $params)) {
                            $select = 'id = ? AND aggregation IN (?, ?, ?)';
                            $params = array($grade_item->categoryid, GRADE_AGGREGATE_WEIGHTED_MEAN2, GRADE_AGGREGATE_EXTRACREDIT_MEAN, GRADE_AGGREGATE_SUM);
                            if ($grade_category = $DB->get_record_select('grade_categories', $select, $params)) {
                                $skipped = false;
                                if ($DB->set_field('grade_items', 'aggregationcoef', $extracredit, array('id' => $grade_item->id))) {
                                    $updated = true;
                                    $regrade_item_id = $grade_item->id;
                                } else {
                                    $success = false;
                                }
                            }
                        }
                        break;
                        // regrade activity
                    // regrade activity
                    case 'regrade':
                        // Note: the lib.php for this mod was included earlier
                        // if we use just the "update_grades" function,
                        // we cannot know if it is successful or not ...
                        // $update_grades = $cm->modname.'_update_grades';
                        // ... so we use the following functions instead:
                        $get_user_grades = $cm->modname . '_get_user_grades';
                        $grade_item_update = $cm->modname . '_grade_item_update';
                        if (function_exists($get_user_grades) && function_exists($grade_item_update)) {
                            $grades = $get_user_grades($instance);
                            if ($grade_item_update($instance, $grades) == GRADE_UPDATE_OK) {
                                // GRADE_UPDATE_OK = 0
                                $updated = true;
                            } else {
                                $success = false;
                            }
                            $skipped = false;
                        } else {
                            $skipped = true;
                        }
                        break;
                    case 'removeconditions':
                        if ($removeconditions) {
                            if ($dbman->field_exists('course_modules', 'availability')) {
                                // Moodle >= 2.7
                                $DB->set_field('course_modules', 'availability', '', array('id' => $cm->id));
                                $updated = true;
                            } else {
                                // Moodle <= 2.6
                                if ($dbman->field_exists('course_modules', 'availablefrom')) {
                                    $DB->set_field('course_modules', 'availablefrom', 0, array('id' => $cm->id));
                                    $DB->set_field('course_modules', 'availableuntil', 0, array('id' => $cm->id));
                                    $DB->set_field('course_modules', 'showavailability', 0, array('id' => $cm->id));
                                    $updated = true;
                                }
                                if ($dbman->table_exists('course_modules_availability')) {
                                    $DB->delete_records('course_modules_availability', array('coursemoduleid' => $cm->id));
                                    $updated = true;
                                }
                                if ($dbman->table_exists('course_modules_avail_fields')) {
                                    $DB->delete_records('course_modules_avail_fields', array('coursemoduleid' => $cm->id));
                                    $updated = true;
                                }
                            }
                            $rebuild_course_cache = true;
                        }
                        break;
                    case 'conditiondate':
                    case 'conditiongrade':
                    case 'conditionfield':
                    case 'conditiongroup':
                    case 'conditiongrouping':
                    case 'conditioncm':
                    case 'conditionaction':
                        if ($conditions_checked == false) {
                            $conditions_checked = true;
                            $conditions = array_merge($conditiondate, $conditiongrade, $conditionfield, $conditiongroup, $conditiongrouping, $conditioncm);
                            update_course_module_availability($labelmods, $resourcemods, $course, $cm, $conditions, $conditionaction, $updated, $skipped);
                            if ($updated) {
                                $rebuild_course_cache = true;
                            }
                        }
                        break;
                    case 'removecompletion':
                        if ($removecompletion) {
                            $table = 'course_modules';
                            $params = array('id' => $cm->id);
                            $names = array('completion' => 0, 'completionview' => 0, 'completionexpected' => 0, 'completiongradeitemnumber' => null);
                            foreach ($names as $name => $disabled) {
                                $value = $DB->get_field($table, $name, $params);
                                if (isset($value)) {
                                    $value = intval($value);
                                }
                                if ($value === $disabled) {
                                    $skipped = true;
                                } else {
                                    $updated = $DB->set_field($table, $name, $disabled, $params);
                                }
                            }
                            $params = array('id' => $cm->instance);
                            foreach ($completionfields as $name => $field) {
                                if ($field->cmfield) {
                                    continue;
                                    // e.g. completionview/grade
                                }
                                if (array_key_exists($cm->modname, $field->mods)) {
                                    if ($DB->get_field($cm->modname, $name, $params)) {
                                        $updated = $DB->set_field($cm->modname, $name, 0, $params);
                                    } else {
                                        $skipped = true;
                                    }
                                }
                            }
                            if ($updated) {
                                $completion_updated = true;
                            }
                        }
                        break;
                    case 'erasecompletion':
                        if ($erasecompletion) {
                            $completion_updated = true;
                            $updated = true;
                        } else {
                            $skipped = true;
                        }
                        break;
                    case 'completiontracking':
                        update_course_module_completion('course_modules', $cm->id, 'completion', $completiontracking, $updated, $skipped, $completion_updated);
                        break;
                    case 'completiondate':
                        update_course_module_completion('course_modules', $cm->id, $setting, $completiondate, $updated, $skipped, $completion_updated);
                        break;
                    case 'completionview':
                        if (array_key_exists($cm->modname, $completionfields[$setting]->mods)) {
                            update_course_module_completion('course_modules', $cm->id, $setting, $completionview, $updated, $skipped, $completion_updated);
                        }
                        break;
                    case 'completiongrade':
                        if (array_key_exists($cm->modname, $completionfields[$setting]->mods)) {
                            // course_modules.completiongradeitemnumber
                            // see "set_moduleinfo_defaults()" in "course/modlib.php"
                            // null=disabled, 0=enabled (i.e. require grade)
                            $completiongradeitemnumber = $completiongrade ? 0 : null;
                            update_course_module_completion('course_modules', $cm->id, 'completiongradeitemnumber', $completiongradeitemnumber, $updated, $skipped, $completion_updated);
                        }
                        break;
                    case 'competencyrule':
                        $data = (object) array('coursemodule' => $cm->id, 'competencies' => array(), 'competency_rule' => $competencyrule);
                        // see "admin/tool/lp/lib.php"
                        $data = tool_lp_coursemodule_edit_post_actions($data, $course);
                        $updated = true;
                        break;
                    default:
                        if (array_key_exists($setting, $completionfields)) {
                            $field = $completionfields[$setting];
                            if (array_key_exists($cm->modname, $field->mods)) {
                                update_course_module_completion($cm->modname, $cm->instance, $setting, ${$setting}, $updated, $skipped, $completion_updated);
                            }
                        } else {
                            if (substr($setting, 0, 6) == 'filter') {
                                $filter = substr($setting, 6);
                                if (in_array(${$setting}, array(TEXTFILTER_ON, TEXTFILTER_OFF, TEXTFILTER_INHERIT))) {
                                    filter_set_local_state($filter, $modulecontext->id, ${$setting});
                                    $reset_filter_caches = true;
                                    $updated = true;
                                } else {
                                    $skipped = true;
                                }
                            } else {
                                // unexpected setting - shouldn't happen !!
                                echo 'Unknown setting, ' . $setting . ', not processed' . html_writer::empty_tag('br');
                            }
                        }
                }
                // end switch
            }
            // end foreach $selected_settings
            if ($completion_updated) {
                $completion = $completiontracking;
                // if automatic completion (=2) is requested,
                // check that some completion conditions are set
                if ($completion == 2) {
                    $completion = 0;
                    $table = 'course_modules';
                    $params = array('id' => $cm->id);
                    $names = array('completionview' => 0, 'completionexpected' => 0, 'completiongradeitemnumber' => null);
                    foreach ($names as $name => $disabled) {
                        $value = $DB->get_field($table, $name, $params);
                        if (isset($value)) {
                            $value = intval($value);
                        }
                        if ($value !== $disabled) {
                            $completion = $completiontracking;
                        }
                    }
                    foreach ($completionfields as $field) {
                        $name = $field->name;
                        if (property_exists($instance, $name) && $instance->{$name}) {
                            $completion = $completiontracking;
                        }
                    }
                }
                // force completion to be something sensible
                update_course_module_completion('course_modules', $cm->id, 'completion', $completion, $updated, $skipped, $completion_updated);
                // get full $cm record
                if (method_exists($cm, 'get_course_module_record')) {
                    // Moodle >= 2.7
                    $cm = $cm->get_course_module_record(true);
                } else {
                    // Moodle <= 2.6
                    $cm = get_coursemodule_from_id($cm->modname, $cm->id, $cm->course, true);
                }
                // prevent "Cannot find grade item" error in "lib/completionlib.php"
                $params = array('courseid' => $cm->course, 'itemtype' => 'mod', 'itemmodule' => $cm->modname, 'iteminstance' => $cm->instance);
                if (!grade_item::fetch($params)) {
                    $cm->completiongradeitemnumber = null;
                    // disable grade completion
                }
                $completion = new completion_info($course);
                $completion->reset_all_state($cm);
                $rebuild_course_cache = true;
            }
            if ($regrade_item_id) {
                $regrade_course_grades = true;
                $DB->set_field('grade_items', 'needsupdate', 1, array('id' => $regrade_item_id));
                $DB->set_field('grade_items', 'needsupdate', 1, array('courseid' => $course->id, 'itemtype' => 'course'));
            }
            if ($started_list == false) {
                $started_list = true;
                echo '<table border="0" cellpadding="4" cellspacing="4" class="selectedactivitylist"><tbody>' . "\n";
                echo '<tr><th colspan="2">' . get_string('settingsselected', $plugin) . '</th></tr>' . "\n";
                foreach ($selected_settings as $setting) {
                    list($name, $value) = format_setting($setting, ${$setting}, $ratings, $gradecategories, $groupmodes, $groupings, $indentmenu, $sectionmenu, $positionmenu, $uploadlimitmenu, $conditiongradeitemidmenu, $conditioncmidmenu, $conditioncmcompletionmenu, $conditionfieldnamemenu, $conditionfieldoperatormenu, $conditiongroupidmenu, $conditiongroupingidmenu, $conditionactionmenu, $completiontrackingmenu, $completionfields, $competencyrulemenu, $filters, $filtermenu, $filterdefaulton, $filterdefaultoff);
                    echo '<tr><td class="itemname">' . $name . ':</td><td class="itemvalue">' . $value . '</td></tr>' . "\n";
                }
                echo '<tr><th colspan="2">' . get_string('activitiesselected', $plugin) . '</th></tr>' . "\n";
            }
            echo '<tr><td class="itemname">';
            if ($updated) {
                echo '<span class="updated">' . get_string('updated', 'moodle', $cm->modname) . '</span>';
            } else {
                if ($skipped) {
                    echo '<span class="skipped">' . get_string('skipped') . ' ' . $cm->modname . '</span>';
                } else {
                    echo '<span class="failure">' . get_string('fail', 'install') . ' ' . $cm->modname . '</span>';
                }
            }
            echo '</td><td class="itemvalue">';
            $url = $PAGE->theme->pix_url('icon', $cm->modname)->out();
            echo '<img src="' . $url . '" class="icon" title="' . s(get_string('modulename', $cm->modname)) . '"></img> ';
            $name = urldecode($cm->name);
            $name = block_taskchain_navigation::filter_text($name);
            $name = trim(strip_tags($name));
            $name = block_taskchain_navigation::trim_text($name, $cm_namelength, $cm_headlength, $cm_taillength);
            echo $name;
            echo '</td></tr>' . "\n";
        }
    }
    if ($sortgradeitems || $creategradecats || $removegradecats || $reset_filter_caches || $rebuild_course_cache || $regrade_course_grades || isset($success)) {
        if ($started_list == false) {
            $started_list = true;
            echo '<table border="0" cellpadding="4" cellspacing="4" class="selectedactivitylist"><tbody>' . "\n";
        }
        if ($sortgradeitems) {
            echo '<tr><td class="notifymessage" colspan="2">';
            $msg = get_string('sortedgradeitems', $plugin);
            echo $OUTPUT->notification($msg, 'notifysuccess');
            echo '</td></tr>' . "\n";
        }
        if ($creategradecats) {
            echo '<tr><td class="notifymessage" colspan="2">';
            $msg = get_string('createdgradecategories', $plugin);
            echo $OUTPUT->notification($msg, 'notifysuccess');
            echo '</td></tr>' . "\n";
        }
        if ($removegradecats) {
            echo '<tr><td class="notifymessage" colspan="2">';
            $msg = get_string('removedgradecategories', $plugin);
            echo $OUTPUT->notification($msg, 'notifysuccess');
            echo '</td></tr>' . "\n";
        }
        if ($reset_filter_caches) {
            echo '<tr><td class="notifymessage" colspan="2">';
            echo get_string('resettingfiltercache', $plugin) . ' ... ';
            filter_manager::reset_caches();
            //unset($FILTERLIB_PRIVATE->active[$context->id]);
            echo get_string('ok') . '</td></tr>' . "\n";
        }
        if ($rebuild_course_cache) {
            echo '<tr><td class="notifymessage" colspan="2">';
            echo get_string('rebuildingcoursecache', $plugin) . ' ... ';
            rebuild_course_cache($course->id);
            echo get_string('ok') . '</td></tr>' . "\n";
        }
        if ($regrade_course_grades) {
            echo '<tr><td class="notifymessage" colspan="2">';
            echo get_string('recalculatingcoursegrades', $plugin) . ' ... ';
            grade_regrade_final_grades($course->id);
            echo get_string('ok') . '</td></tr>' . "\n";
        }
        if ($success === true) {
            echo '<tr><td class="notifymessage" colspan="2">';
            $msg = get_string('success');
            echo $OUTPUT->notification($msg, 'notifysuccess');
            echo '</td></tr>' . "\n";
        }
        if ($success === false) {
            echo '<tr><td class="notifymessage" colspan="2">';
            $msg = get_string('activityupdatefailure', $plugin);
            echo $OUTPUT->notification($msg, 'notifyproblem');
            echo '</td></tr>' . "\n";
        }
    }
    if ($started_list) {
        $started_list = false;
        echo '</tbody></table>' . "\n";
    }
    echo '<script type="text/javascript">' . "\n";
    echo "//<![CDATA[\n";
    echo "function reset_all_in(elTagName, elNamePrefix, parentTagName, parentClass, parentId, resetValues) {\n";
    echo "    var obj = document.getElementsByTagName(elTagName);\n";
    echo "    obj = filterByParent(obj, function(el) {return findParentNode(el, parentTagName, parentClass, parentId);});\n";
    echo "    for (var i=0; i<obj.length; i++) {\n";
    echo "        var elName = obj[i].name;\n";
    echo "        if (elName && (elNamePrefix=='' || elName.substr(0, elNamePrefix.length)==elNamePrefix)) {\n";
    echo "            switch (obj[i].type) {\n";
    echo "                case 'checkbox':\n";
    echo "                case 'radio':\n";
    echo "                    if (typeof(resetValues)=='string') {\n";
    echo "                        obj[i].checked = (resetValues=='all' ? true : false);\n";
    echo "                    } else {\n";
    echo "                        obj[i].checked = (resetValues[elName] ? true : false);\n";
    echo "                    }\n";
    echo "                    if (obj[i].onclick) {\n";
    echo "                        obj[i].onclick()\n";
    echo "                    }\n";
    echo "                    break;\n";
    echo "                case 'select':\n";
    echo "                case 'select-multiple':\n";
    echo "                    for (var ii=0; ii<obj[i].options.length; ii++) {\n";
    echo "                        if (typeof(resetValues)=='string') {\n";
    echo "                            obj[i].options[ii].selected = (resetValues=='all' ? true : false);\n";
    echo "                        } else {\n";
    echo "                            var elValue = obj[i].options[ii].value;\n";
    echo "                            obj[i].options[ii].selected = (resetValues[elValue] ? true : false);\n";
    echo "                        }\n";
    echo "                    }\n";
    echo "                    break;\n";
    echo "            }\n";
    echo "        }\n";
    echo "    }\n";
    echo "}\n";
    echo "function set_disabled(frm, names, value, sync_checkbox) {\n";
    echo "    var fixed_color = false;\n";
    echo "    if (frm) {\n";
    echo "        var i_max = names.length;\n";
    echo "        for (var i=0; i<i_max; i++) {\n";
    echo "            if (frm.elements[names[i]]) {\n";
    echo "                frm.elements[names[i]].disabled = value;\n";
    echo "                if (sync_checkbox) {\n";
    echo "                    if (frm.elements[names[i]].type=='checkbox') {\n";
    echo "                        frm.elements[names[i]].checked = (! value);\n";
    echo "                    }\n";
    echo "                }\n";
    echo "                if (fixed_color==false) {\n";
    echo "                    fixed_color = true;\n";
    echo "                    var obj = frm.elements[names[i]].parentNode;\n";
    echo "                    if (obj) {\n";
    echo "                        obj.style.color = (value ? '#999999' : 'inherit');\n";
    echo "                    }\n";
    echo "                }\n";
    echo "            }\n";
    echo "        }\n";
    echo "    }\n";
    echo "    return true;\n";
    echo "}\n";
    echo "function init_disabled(frm, names, value) {\n";
    echo "    var obj = document.getElementsByTagName('input');\n";
    echo "    if (obj) {\n";
    echo "        var i_max = obj.length;\n";
    echo "        for (var i=0; i<i_max; i++) {\n";
    echo "            if (obj[i].name && obj[i].name.substr(0, 7)=='select_' && obj[i].onclick) {\n";
    echo "                obj[i].id = 'id_' + obj[i].name;\n";
    echo "                obj[i].onclick();\n";
    echo "            }\n";
    echo "        }\n";
    echo "    }\n";
    echo "    return true;\n";
    echo "}\n";
    echo "function confirm_action(msg, checksettings) {\n";
    echo "    var ok = false;\n";
    echo "    var obj = null;\n";
    echo "    if (obj = document.getElementById('id_sections')) {\n";
    echo "        if (obj.selectedIndex >= 0) {\n";
    echo "            ok = true;\n";
    echo "        }\n";
    echo "    }\n";
    echo "    if (obj = document.getElementById('id_modules')) {\n";
    echo "        if (obj.selectedIndex >= 0) {\n";
    echo "            ok = true;\n";
    echo "        }\n";
    echo "    }\n";
    echo "    if (obj = document.getElementById('id_include')) {\n";
    echo "        if (obj.value) {\n";
    echo "            ok = true;\n";
    echo "        }\n";
    echo "    }\n";
    echo "    if (obj = document.getElementById('id_exclude')) {\n";
    echo "        if (obj.value) {\n";
    echo "            ok = true;\n";
    echo "        }\n";
    echo "    }\n";
    echo "    if (obj = document.getElementById('menuvisibility')) {\n";
    echo "        if (obj.selectedIndex >= 1) {\n";
    echo "            ok = true;\n";
    echo "        }\n";
    echo "    }\n";
    echo "    if (obj = document.getElementById('id_cmids')) {\n";
    echo "        if (obj.selectedIndex >= 0) {\n";
    echo "            ok = true;\n";
    echo "        }\n";
    echo "    }\n";
    echo "    if (ok==false) {\n";
    echo "        alert('" . js(get_string('noactivitiesselected', $plugin)) . "');\n";
    echo "        return ok;\n";
    echo "    }\n";
    echo "    if (checksettings) {\n";
    echo "        ok = false;\n";
    echo "        var settings = new Array('id_select_" . implode("', 'id_select_", $settings) . "');\n";
    echo "        for (var i=0; i<settings.length; i++) {\n";
    echo "            if (obj = document.getElementById(settings[i])) {\n";
    echo "                if (obj.checked) {\n";
    echo "                    ok = true;\n";
    echo "                }\n";
    echo "            }\n";
    echo "        }\n";
    echo "    }\n";
    echo "    if (ok==false) {\n";
    echo "        alert('" . js(get_string('nosettingsselected', $plugin)) . "');\n";
    echo "        return ok;\n";
    echo "    }\n";
    echo "    return confirm(msg);\n";
    echo "}\n";
    echo "if (window.addEventListener) {\n";
    echo "    window.addEventListener('load', init_disabled, false);\n";
    echo "} else if (window.attachEvent) {\n";
    echo "    window.attachEvent('onload', init_disabled)\n";
    echo "} else {\n";
    echo "    window.onload = init_disabled;\n";
    echo "}\n";
    echo "//]]>\n";
    echo '</script>' . "\n";
    echo '<form method="post" action="accesscontrol.php" enctype="multipart/form-data">' . "\n";
    echo '<table border="0" cellpadding="4" cellspacing="4" width="720" style="margin: auto;" class="blockconfigtable">' . "\n";
    echo '<tr>' . "\n";
    echo '<td colspan="2" class="blockdescription">' . nl2br(get_string('accesspagedescription', $plugin)) . '</td>' . "\n";
    echo '<td class="itemselect">';
    echo get_string('select') . ' ';
    echo $OUTPUT->help_icon('selectsettings', $plugin);
    echo '<br />';
    echo '<a href="' . "javascript:reset_all_in('INPUT','select_','TD','itemselect',null,'all');" . '">' . get_string('all') . '</a>';
    echo ' / ';
    echo '<a href="' . "javascript:reset_all_in('INPUT','select_','TD','itemselect',null,'none');" . '">' . get_string('none') . '</a>';
    echo '</td>' . "\n";
    echo '</tr>' . "\n";
    // ============================
    // Activity filters
    // ============================
    //
    print_sectionheading(get_string('activityfilters', $plugin), 'activityfilters', false);
    echo '<tr>' . "\n";
    echo '<td class="itemname">' . get_string('sectiontags', $plugin) . ':</td>';
    echo '<td class="itemvalue">';
    echo '<input id="id_sectiontags" type="text" name="sectiontags" size="15" value="' . $sectiontags . '" />';
    echo ' ' . $OUTPUT->help_icon('sectiontitletags', $plugin);
    echo '</td>' . "\n";
    echo '<td class="itemselect">&nbsp;</td>' . "\n";
    echo '</tr>' . "\n";
    echo '<tr>' . "\n";
    echo '<td class="itemname">' . get_string('sections', $plugin) . ':';
    echo '<div class="smalltext">';
    echo '<a href="' . "javascript:reset_all_in('SELECT','sections','','',null,'all');" . '">' . get_string('all') . '</a>';
    echo ' / ';
    echo '<a href="' . "javascript:reset_all_in('SELECT','sections','','',null,'none');" . '">' . get_string('none') . '</a>';
    echo '</div>';
    echo '</td>' . "\n";
    echo '<td class="itemvalue">' . $sections . '</td>' . "\n";
    echo '<td class="itemselect">&nbsp;</td>' . "\n";
    echo '</tr>' . "\n";
    echo '<tr>' . "\n";
    echo '<td class="itemname">' . get_string('activitytypes', $plugin) . ':';
    echo '<div class="smalltext">';
    echo '<a href="' . "javascript:reset_all_in('SELECT','modules','','',null,'all');" . '">' . get_string('all') . '</a>';
    echo ' / ';
    echo '<a href="' . "javascript:reset_all_in('SELECT','modules','','',null,'none');" . '">' . get_string('none') . '</a>';
    echo '</div>';
    echo '</td>' . "\n";
    echo '<td class="itemvalue">' . $modules . '</td>' . "\n";
    echo '<td class="itemselect">&nbsp;</td>' . "\n";
    echo '</tr>' . "\n";
    echo '<tr>' . "\n";
    echo '<td class="itemname">' . get_string('activitynamefilters', $plugin) . ':</td>' . "\n";
    echo '<td class="itemvalue">';
    echo '    <div class="subitem">';
    echo '        <div class="subname">' . get_string('include', $plugin) . ':</div>';
    echo '        <input id="id_include" type="text" name="include" size="15" value="' . $include . '" />';
    echo '    </div>';
    echo '    <div class="subitem">';
    echo '        <div class="subname">' . get_string('exclude', $plugin) . ':</div>';
    echo '        <input id="id_exclude" type="text" name="exclude" size="15" value="' . $exclude . '" />';
    echo '    </div>';
    echo '</td>' . "\n";
    echo '<td class="itemselect">&nbsp;</td>' . "\n";
    echo '</tr>' . "\n";
    echo '<tr>' . "\n";
    echo '<td class="itemname">' . get_string('visibility', $plugin) . ':</td>' . "\n";
    echo '<td class="itemvalue">';
    echo html_writer::select($visibilitymenu, 'visibility', $visibility, '');
    echo '</td>' . "\n";
    echo '<td class="itemselect">&nbsp;</td>' . "\n";
    echo '</tr>' . "\n";
    echo '<tr>' . "\n";
    echo '<td class="itemname">' . get_string('activityids', $plugin) . ':';
    echo '<div class="smalltext">';
    echo '<a href="' . "javascript:reset_all_in('SELECT','cmids','','',null,'all');" . '">' . get_string('all') . '</a>';
    echo ' / ';
    echo '<a href="' . "javascript:reset_all_in('SELECT','cmids','','',null,'none');" . '">' . get_string('none') . '</a>';
    echo '</div>';
    echo '</td>' . "\n";
    echo '<td class="itemvalue">' . $cms . '</td>' . "\n";
    echo '<td class="itemselect">&nbsp;</td>' . "\n";
    echo '</tr>' . "\n";
    // ============================
    // Availability dates
    // ============================
    //
    print_sectionheading(get_string('dates', $plugin), 'dates', true);
    echo '<tr>' . "\n";
    echo '<td class="itemname">' . get_string('availablefrom', $plugin) . ':</td>' . "\n";
    echo '<td class="itemvalue">';
    $fromdate['minutes'] = intval($fromdate['minutes']) - intval($fromdate['minutes']) % 5;
    echo html_writer::select($days, 'fromday', intval($fromdate['mday']), '') . ' ';
    echo html_writer::select($months, 'frommonth', intval($fromdate['mon']), '') . ' ';
    echo html_writer::select($years, 'fromyear', intval($fromdate['year']), '') . ' ';
    echo html_writer::select($hours, 'fromhours', intval($fromdate['hours']), '') . ' ';
    echo html_writer::select($minutes, 'fromminutes', intval($fromdate['minutes']), '') . ' ';
    $names = "'menufromday', 'menufrommonth', 'menufromyear', 'menufromhours', 'menufromminutes'";
    $script = "return set_disabled(this.form, new Array({$names}), (this.disabled || this.checked))";
    echo html_writer::checkbox('fromdisable', '1', $fromdisable, get_string('disable'), array('onclick' => $script));
    echo '</td>' . "\n";
    echo '<td class="itemselect">';
    $script = "return set_disabled(this.form, new Array('fromdisable'), (! this.checked)) && this.form.fromdisable.onclick()";
    $checked = optional_param('select_availablefrom', 0, PARAM_INT);
    echo html_writer::checkbox('select_availablefrom', 1, $checked, '', array('onclick' => $script));
    echo '</td>' . "\n";
    echo '</tr>' . "\n";
    echo '<tr>' . "\n";
    echo '<td class="itemname">' . get_string('availableuntil', $plugin) . ':</td>' . "\n";
    echo '<td class="itemvalue">';
    $untildate['minutes'] = intval($untildate['minutes']) - intval($untildate['minutes']) % 5;
    echo html_writer::select($days, 'untilday', intval($untildate['mday']), '') . ' ';
    echo html_writer::select($months, 'untilmonth', intval($untildate['mon']), '') . ' ';
    echo html_writer::select($years, 'untilyear', intval($untildate['year']), '') . ' ';
    echo html_writer::select($hours, 'untilhours', intval($untildate['hours']), '') . ' ';
    echo html_writer::select($minutes, 'untilminutes', intval($untildate['minutes']), '') . ' ';
    $names = "'menuuntilday', 'menuuntilmonth', 'menuuntilyear', 'menuuntilhours', 'menuuntilminutes'";
    $script = "return set_disabled(this.form, new Array({$names}), (this.disabled || this.checked))";
    echo html_writer::checkbox('untildisable', '1', $untildisable, get_string('disable'), array('onclick' => $script));
    echo '</td>' . "\n";
    echo '<td class="itemselect">';
    $script = "return set_disabled(this.form, new Array('untildisable'), (! this.checked)) && this.form.untildisable.onclick()";
    $checked = optional_param('select_availableuntil', 0, PARAM_INT);
    echo html_writer::checkbox('select_availableuntil', 1, $checked, '', array('onclick' => $script));
    echo '</td>' . "\n";
    echo '</tr>' . "\n";
    if ($modnames = implode(', ', $cutoffdatemods)) {
        echo '<tr>' . "\n";
        echo '<td class="itemname">' . get_string('cutoffdate', 'assign') . ':</td>' . "\n";
        echo '<td class="itemvalue">';
        $cutoffdate['minutes'] = intval($cutoffdate['minutes']) - intval($cutoffdate['minutes']) % 5;
        echo html_writer::select($days, 'cutoffday', intval($cutoffdate['mday']), '') . ' ';
        echo html_writer::select($months, 'cutoffmonth', intval($cutoffdate['mon']), '') . ' ';
        echo html_writer::select($years, 'cutoffyear', intval($cutoffdate['year']), '') . ' ';
        echo html_writer::select($hours, 'cutoffhours', intval($cutoffdate['hours']), '') . ' ';
        echo html_writer::select($minutes, 'cutoffminutes', intval($cutoffdate['minutes']), '') . ' ';
        $names = "'menucutoffday', 'menucutoffmonth', 'menucutoffyear', 'menucutoffhours', 'menucutoffminutes'";
        $script = "return set_disabled(this.form, new Array({$names}), (this.disabled || this.checked))";
        echo html_writer::checkbox('cutoffdisable', '1', $cutoffdisable, get_string('disable'), array('onclick' => $script));
        echo html_writer::empty_tag('br') . '(' . get_string('completionfieldactivities', $plugin, $modnames) . ')';
        echo '</td>' . "\n";
        echo '<td class="itemselect">';
        $script = "return set_disabled(this.form, new Array('cutoffdisable'), (! this.checked)) && this.form.cutoffdisable.onclick()";
        $checked = optional_param('select_availablecutoff', 0, PARAM_INT);
        echo html_writer::checkbox('select_availablecutoff', 1, $checked, '', array('onclick' => $script));
        echo '</td>' . "\n";
        echo '</tr>' . "\n";
    }
    // ============================
    // Grades
    // ============================
    //
    echo '<tr class="sectionheading" id="id_section_dates">' . "\n";
    echo '<th colspan="2">';
    echo get_string('grades');
    echo ' &nbsp; <span class="sortgradeitems">';
    if ($sortgradeitems) {
        echo ' ' . get_string('sortedgradeitems', $plugin);
    } else {
        $href = $CFG->wwwroot . '/blocks/taskchain_navigation/accesscontrol.php?id=' . $block_instance->id . '&sortgradeitems=1&sesskey=' . sesskey();
        $onclick = 'return confirm("' . js(get_string('confirmsortgradeitems', $plugin)) . '")';
        echo '<a href="' . s($href) . '" onclick="' . s($onclick) . '">' . get_string('sortgradeitems', $plugin) . '</a> ';
        echo $OUTPUT->help_icon('sortgradeitems', $plugin);
    }
    echo '</span>';
    echo ' &nbsp; <span class="creategradecategories">';
    if ($creategradecats) {
        echo ' ' . get_string('createdgradecategories', $plugin);
    } else {
        $href = $CFG->wwwroot . '/blocks/taskchain_navigation/accesscontrol.php?id=' . $block_instance->id . '&creategradecats=1&sesskey=' . sesskey();
        $onclick = 'return confirm("' . js(get_string('confirmcreategradecategories', $plugin)) . '")';
        echo '<a href="' . s($href) . '" onclick="' . s($onclick) . '">' . get_string('creategradecategories', $plugin) . '</a> ';
        echo $OUTPUT->help_icon('creategradecategories', $plugin);
    }
    echo '</span>';
    echo ' &nbsp; <span class="removegradecategories">';
    if ($removegradecats) {
        echo ' ' . get_string('removedgradecategories', $plugin);
    } else {
        $href = $CFG->wwwroot . '/blocks/taskchain_navigation/accesscontrol.php?id=' . $block_instance->id . '&removegradecats=1&sesskey=' . sesskey();
        $onclick = 'return confirm("' . js(get_string('confirmremovegradecategories', $plugin)) . '")';
        echo '<a href="' . s($href) . '" onclick="' . s($onclick) . '">' . get_string('removegradecategories', $plugin) . '</a> ';
        echo $OUTPUT->help_icon('removegradecategories', $plugin);
    }
    echo '</span>';
    echo '</th>' . "\n";
    echo '<th class="toggle"></th>' . "\n";
    echo '</tr>' . "\n";
    if ($modnames = implode(', ', $ratingmods)) {
        echo '<tr>' . "\n";
        echo '<td class="itemname">' . get_string('rating', 'rating') . ':</td>' . "\n";
        echo '<td class="itemvalue">';
        echo html_writer::select($ratings, 'rating', $rating, '') . ' ';
        echo '(' . get_string('completionfieldactivities', $plugin, $modnames) . ')';
        echo '</td>' . "\n";
        echo '<td class="itemselect">';
        $script = "return set_disabled(this.form, new Array('rating'), (! this.checked))";
        echo html_writer::checkbox('select_rating', 1, optional_param('select_rating', 0, PARAM_INT), '', array('onclick' => $script));
        echo '</td>' . "\n";
        echo '</tr>' . "\n";
    }
    if ($modnames = implode(', ', $gradingmods)) {
        echo '<tr>' . "\n";
        echo '<td class="itemname">' . get_string('grade') . ':</td>' . "\n";
        echo '<td class="itemvalue">';
        foreach ($gradingmods as $modname => $modtext) {
            echo "<p>{$modname} - {$modtext}<br />";
            foreach ($gradingareas[$modname] as $areaname => $areatext) {
                echo " == {$areaname} - {$areatext}<br />";
            }
            echo "</p>\n";
        }
        echo '</td>' . "\n";
        echo '<td class="itemselect">';
        $script = "return set_disabled(this.form, new Array('grading'), (! this.checked))";
        echo html_writer::checkbox('select_grading', 1, optional_param('select_grading', 0, PARAM_INT), '', array('onclick' => $script));
        echo '</td>' . "\n";
        echo '</tr>' . "\n";
    }
    echo '<tr>' . "\n";
    echo '<td class="itemname">' . get_string('maximumgrade', $plugin) . ':</td>' . "\n";
    echo '<td class="itemvalue">';
    echo html_writer::select($maxgrades, 'maxgrade', $maxgrade, '');
    echo '</td>' . "\n";
    echo '<td class="itemselect">';
    $script = "return set_disabled(this.form, new Array('maxgrade'), (! this.checked))";
    echo html_writer::checkbox('select_maxgrade', 1, optional_param('select_maxgrade', 0, PARAM_INT), '', array('onclick' => $script));
    echo '</td>' . "\n";
    echo '</tr>' . "\n";
    echo '<tr>' . "\n";
    echo '<td class="itemname">' . get_string('gradepass', 'grades') . ':</td>' . "\n";
    echo '<td class="itemvalue">';
    echo html_writer::select($gradepassmenu, 'gradepass', $gradepass, '');
    echo '</td>' . "\n";
    echo '<td class="itemselect">';
    $script = "return set_disabled(this.form, new Array('gradepass'), (! this.checked))";
    echo html_writer::checkbox('select_gradepass', 1, optional_param('select_gradepass', 0, PARAM_INT), '', array('onclick' => $script));
    echo '</td>' . "\n";
    echo '</tr>' . "\n";
    echo '<tr>' . "\n";
    echo '<td class="itemname">' . get_string('gradecategory', 'grades') . ':</td>' . "\n";
    echo '<td class="itemvalue">';
    echo html_writer::select($gradecategories, 'gradecat', $gradecat, '');
    echo '</td>' . "\n";
    echo '<td class="itemselect">';
    $script = "return set_disabled(this.form, new Array('gradecat'), (! this.checked))";
    echo html_writer::checkbox('select_gradecat', 1, optional_param('select_gradecat', 0, PARAM_INT), '', array('onclick' => $script));
    echo '</td>' . "\n";
    echo '</tr>' . "\n";
    echo '<tr>' . "\n";
    echo '<td class="itemname">' . get_string('gradeitemhidden', $plugin) . ':</td>' . "\n";
    echo '<td class="itemvalue">';
    echo html_writer::select_yes_no('gradeitemhidden', $gradeitemhidden);
    echo '</td>' . "\n";
    echo '<td class="itemselect">';
    $script = "return set_disabled(this.form, new Array('gradeitemhidden'), (! this.checked))";
    echo html_writer::checkbox('select_gradeitemhidden', 1, optional_param('select_gradeitemhidden', 0, PARAM_INT), '', array('onclick' => $script));
    echo '</td>' . "\n";
    echo '</tr>' . "\n";
    echo '<tr>' . "\n";
    echo '<td class="itemname">' . get_string('aggregationcoefextra', 'grades') . ':</td>' . "\n";
    echo '<td class="itemvalue">';
    echo html_writer::select_yes_no('extracredit', $extracredit);
    echo '</td>' . "\n";
    echo '<td class="itemselect">';
    $script = "return set_disabled(this.form, new Array('extracredit'), (! this.checked))";
    echo html_writer::checkbox('select_extracredit', 1, optional_param('select_extracredit', 0, PARAM_INT), '', array('onclick' => $script));
    echo '</td>' . "\n";
    echo '</tr>' . "\n";
    echo '<tr>' . "\n";
    echo '<td class="itemname">' . get_string('regrade', $plugin) . ':</td>' . "\n";
    echo '<td class="itemvalue">';
    echo html_writer::select_yes_no('regrade', $regrade);
    echo '</td>' . "\n";
    echo '<td class="itemselect">';
    $script = "return set_disabled(this.form, new Array('regrade'), (! this.checked))";
    echo html_writer::checkbox('select_regrade', 1, optional_param('select_regrade', 0, PARAM_INT), '', array('onclick' => $script));
    echo '</td>' . "\n";
    echo '</tr>' . "\n";
    // ============================
    // Groups
    // ============================
    //
    print_sectionheading(get_string('groups'), 'groups', true);
    echo '<tr>' . "\n";
    echo '<td class="itemname">' . get_string('groupmode') . ':</td>' . "\n";
    echo '<td class="itemvalue">';
    echo html_writer::select($groupmodes, 'groupmode', $groupmode, '');
    echo '</td>' . "\n";
    echo '<td class="itemselect">';
    $script = "return set_disabled(this.form, new Array('groupmode'), (! this.checked))";
    echo html_writer::checkbox('select_groupmode', 1, optional_param('select_groupmode', 0, PARAM_INT), '', array('onclick' => $script));
    echo '</td>' . "\n";
    echo '</tr>' . "\n";
    if (count($groupings)) {
        echo '<tr>' . "\n";
        echo '<td class="itemname">' . get_string('grouping', 'group') . ':</td>' . "\n";
        echo '<td class="itemvalue">';
        echo html_writer::select($groupings, 'groupingid', $groupingid, '');
        echo '</td>' . "\n";
        echo '<td class="itemselect">';
        $script = "return set_disabled(this.form, new Array('groupingid'), (! this.checked))";
        echo html_writer::checkbox('select_groupingid', 1, optional_param('select_groupingid', 0, PARAM_INT), '', array('onclick' => $script));
        echo '</td>' . "\n";
        echo '</tr>' . "\n";
        if ($strman->string_exists('groupmembersonly', 'group')) {
            echo '<tr>' . "\n";
            echo '<td class="itemname groupmembersonly">' . get_string('groupmembersonly', 'group') . ':</td>' . "\n";
            echo '<td class="itemvalue">';
            echo html_writer::checkbox('groupmembersonly', 1, $groupmembersonly);
            echo '</td>' . "\n";
            echo '<td class="itemselect">';
            $script = "return set_disabled(this.form, new Array('groupmembersonly'), (! this.checked))";
            echo html_writer::checkbox('select_groupmembersonly', 1, optional_param('select_groupmembersonly', 0, PARAM_INT), '', array('onclick' => $script));
            echo '</td>' . "\n";
            echo '</tr>' . "\n";
        }
    }
    // ============================
    // Course page
    // ============================
    //
    echo '<tr class="sectionheading" id="id_section_coursepage">' . "\n";
    echo '<th colspan="2">';
    echo get_string('coursepage', $plugin);
    echo ' &nbsp; <span class="sortgradeitems">';
    if ($sortactivities) {
        echo ' ' . get_string('sortedactivities', $plugin);
    } else {
        $href = $CFG->wwwroot . '/blocks/taskchain_navigation/accesscontrol.php?id=' . $block_instance->id . '&sortactivities=1&sesskey=' . sesskey();
        $onclick = 'return confirm("' . get_string('confirmsortactivities', $plugin) . '")';
        echo '<a href="' . s($href) . '" onclick="' . js($onclick) . '">' . get_string('sortactivities', $plugin) . '</a> ';
        echo $OUTPUT->help_icon('sortactivities', $plugin);
    }
    echo '</span>';
    echo '</th>' . "\n";
    echo '<th class="toggle"></th>' . "\n";
    echo '</tr>' . "\n";
    echo '<tr>' . "\n";
    echo '<td class="itemname">' . get_string('visible') . ':</td>' . "\n";
    echo '<td class="itemvalue">';
    echo html_writer::select($visiblemenu, 'visible', $visible, '');
    echo '</td>' . "\n";
    echo '<td class="itemselect">';
    $script = "return set_disabled(this.form, new Array('visible'), (! this.checked))";
    echo html_writer::checkbox('select_visible', 1, optional_param('select_visible', 0, PARAM_INT), '', array('onclick' => $script));
    echo '</td>' . "\n";
    echo '</tr>' . "\n";
    echo '<tr>' . "\n";
    echo '<td class="itemname">' . get_string('indent', $plugin) . ':</td>' . "\n";
    echo '<td class="itemvalue">';
    echo html_writer::select($indentmenu, 'indent', $indent, '');
    echo '</td>' . "\n";
    echo '<td class="itemselect">';
    $script = "return set_disabled(this.form, new Array('indent'), (! this.checked))";
    echo html_writer::checkbox('select_indent', 1, optional_param('select_indent', 0, PARAM_INT), '', array('onclick' => $script));
    echo '</td>' . "\n";
    echo '</tr>' . "\n";
    if ($strman->string_exists('moveto', 'question')) {
        // Moodle >= 2.2
        $moveto = get_string('moveto', 'question');
    } else {
        // Moodle <= 2.1
        $moveto = get_string('movehere');
    }
    echo '<tr>' . "\n";
    echo '<td class="itemname">' . $moveto . ':</td>' . "\n";
    echo '<td class="itemvalue">';
    echo html_writer::select($sectionmenu, 'section', $section, '');
    echo ' ';
    echo html_writer::select($positionmenu, 'position', $position, '');
    echo '</td>' . "\n";
    echo '<td class="itemselect">';
    $script = "return set_disabled(this.form, new Array('section', 'position'), (! this.checked))";
    echo html_writer::checkbox('select_section', 1, optional_param('select_section', 0, PARAM_INT), '', array('onclick' => $script));
    echo '</td>' . "\n";
    echo '</tr>' . "\n";
    // ============================
    // Files and uploads
    // ============================
    //
    if (count($filemods)) {
        print_sectionheading(get_string('fileuploads', 'install'), 'files', true);
        $href = 'http://php.net/manual/' . substr(current_language(), 0, 2) . '/ini.core.php';
        $icon = html_writer::empty_tag('img', array('src' => $PAGE->theme->pix_url('i/info', ''), 'title' => get_string('info')));
        $params = array('onclick' => 'this.target="_blank"');
        echo '<tr>' . "\n";
        echo '<td class="itemname">' . get_string('phpuploadlimit', $plugin) . ':</td>' . "\n";
        echo '<td class="itemvalue">';
        if ($limit = ini_get('upload_max_filesize')) {
            $limit = display_size(get_real_size($limit)) . ' upload_max_filesize ';
            echo html_writer::tag('span', $limit, array('class' => 'uploadlimit'));
            echo html_writer::link($href . '#ini.upload-max-filesize', $icon, $params);
            echo html_writer::empty_tag('br');
        }
        if ($limit = ini_get('post_max_size')) {
            $limit = display_size(get_real_size($limit)) . ' post_max_size ';
            echo html_writer::tag('span', $limit, array('class' => 'uploadlimit'));
            echo html_writer::link($href . '#ini.post-max-size', $icon, $params);
        }
        echo '</td>' . "\n";
        echo '<td class="itemselect"></td>' . "\n";
        echo '</tr>' . "\n";
        echo '<tr>' . "\n";
        echo '<td class="itemname">' . get_string('siteuploadlimit', $plugin) . ':' . '</td>' . "\n";
        echo '<td class="itemvalue">';
        // Site administration -> Security -> Site policies: Maximum uploaded file size
        if ($siteuploadlimit) {
            $limit = display_size($siteuploadlimit);
        } else {
            $limit = get_string('phpuploadlimit', $plugin);
            $limit = get_string('sameas', $plugin, $limit);
            $limit = html_writer::tag('i', $limit);
        }
        echo html_writer::tag('span', $limit, array('class' => 'uploadlimit'));
        if (has_capability('moodle/course:update', $sitecontext)) {
            $href = new moodle_url('/admin/settings.php', array('section' => 'sitepolicies'));
            $icon = html_writer::empty_tag('img', array('src' => $PAGE->theme->pix_url('i/settings', ''), 'title' => get_string('update')));
            echo html_writer::link($href, $icon, array('onclick' => 'this.target="_blank"'));
        }
        echo '</td>' . "\n";
        echo '<td class="itemselect"></td>' . "\n";
        echo '</tr>' . "\n";
        echo '<tr>' . "\n";
        echo '<td class="itemname">' . get_string('courseuploadlimit', $plugin) . ':</td>' . "\n";
        echo '<td class="itemvalue">';
        if ($courseuploadlimit) {
            $limit = display_size($courseuploadlimit);
        } else {
            $limit = get_string('siteuploadlimit', $plugin);
            $limit = get_string('sameas', $plugin, $limit);
            $limit = html_writer::tag('i', $limit);
        }
        echo html_writer::tag('span', $limit, array('class' => 'uploadlimit'));
        if (has_capability('moodle/course:update', $course->context)) {
            $href = new moodle_url('/course/edit.php', array('id' => $course->id));
            $icon = html_writer::empty_tag('img', array('src' => $PAGE->theme->pix_url('i/settings', ''), 'title' => get_string('update')));
            echo html_writer::link($href, $icon, array('onclick' => 'this.target="_blank"'));
        }
        echo '</td>' . "\n";
        echo '<td class="itemselect"></td>' . "\n";
        echo '</tr>' . "\n";
        echo '<tr>' . "\n";
        echo '<td class="itemname">' . get_string('pluginuploadlimits', $plugin) . ':</td>' . "\n";
        echo '<td class="itemvalue">';
        foreach ($filemods as $name => $limit) {
            if ($limit) {
                $limit = display_size($limit);
            } else {
                $limit = get_string('courseuploadlimit', $plugin);
                $limit = get_string('sameas', $plugin, $limit);
                $limit = html_writer::tag('i', $limit);
            }
            $limit .= ': ' . get_string('pluginname', $name);
            echo html_writer::tag('span', $limit, array('class' => 'uploadlimit'));
            if ($hassiteconfig) {
                if ($name == 'assign') {
                    $href = $name . 'submission_file';
                } else {
                    $href = 'modsetting' . $name;
                }
                $href = new moodle_url('/admin/settings.php', array('section' => $href));
                $icon = html_writer::empty_tag('img', array('src' => $PAGE->theme->pix_url('i/settings', ''), 'title' => get_string('update')));
                echo html_writer::link($href, $icon, array('onclick' => 'this.target="_blank"'));
            }
            echo html_writer::empty_tag('br');
        }
        echo '</td>' . "\n";
        echo '<td class="itemselect"></td>' . "\n";
        echo '</tr>' . "\n";
        echo '<tr>' . "\n";
        echo '<td class="itemname">' . get_string('activityuploadlimit', $plugin) . ':</td>' . "\n";
        echo '<td class="itemvalue">';
        echo html_writer::select($uploadlimitmenu, 'uploadlimit', $uploadlimit, '');
        echo '</td>' . "\n";
        echo '<td class="itemselect">';
        $script = "return set_disabled(this.form, new Array('uploadlimit'), (! this.checked))";
        echo html_writer::checkbox('select_uploadlimit', 1, optional_param('select_uploadlimit', 0, PARAM_INT), '', array('onclick' => $script));
        echo '</td>' . "\n";
        echo '</tr>' . "\n";
    }
    // ============================
    // Active filters
    // ============================
    //
    if (count($filters)) {
        print_sectionheading(get_string('actfilterhdr', 'filters'), 'filters', true);
        foreach ($filters as $filter => $filterinfo) {
            if ($filterinfo->inheritedstate == TEXTFILTER_ON) {
                $filtermenu[TEXTFILTER_INHERIT] = $filterdefaulton;
            } else {
                $filtermenu[TEXTFILTER_INHERIT] = $filterdefaultoff;
            }
            $setting = 'filter' . $filter;
            echo '<tr>' . "\n";
            echo '<td class="itemname">' . filter_get_name($filter) . ':</td>' . "\n";
            echo '<td class="itemvalue">';
            echo html_writer::select($filtermenu, $setting, ${$setting}, '');
            echo '</td>' . "\n";
            echo '<td class="itemselect">';
            $script = "return set_disabled(this.form, new Array('{$setting}'), (! this.checked))";
            echo html_writer::checkbox('select_' . $setting, 1, optional_param('select_' . $setting, 0, PARAM_INT), '', array('onclick' => $script));
            echo '</td>' . "\n";
            echo '</tr>' . "\n";
        }
    }
    // ============================
    // Access restrictions (Moodle >= 2.7)
    // Restrict access     (Moodle <= 2.6)
    // ============================
    //
    if ($enableavailability) {
        echo '<tr class="sectionheading" id ="id_section_availability">' . "\n";
        echo '<th colspan="2">' . $str->accessrestrictions . '</th>' . "\n";
        echo '<th class="toggle"></th>' . "\n";
        echo '</tr>' . "\n";
        echo '<tr>' . "\n";
        echo '<td class="itemname removeconditions">' . get_string('removeconditions', $plugin) . ':</td>' . "\n";
        echo '<td class="itemvalue">';
        echo html_writer::checkbox('removeconditions', 1, $removeconditions, get_string('removeconditions_help', $plugin));
        echo '</td>' . "\n";
        echo '<td class="itemselect">';
        $script = "return set_disabled(this.form, new Array('removeconditions'), (! this.checked), true)";
        echo html_writer::checkbox('select_removeconditions', 1, optional_param('select_removeconditions', 0, PARAM_INT), '', array('onclick' => $script));
        echo '</td>' . "\n";
        echo '</tr>' . "\n";
        // =====================
        // condition dates
        // =====================
        //
        echo '<tr>' . "\n";
        echo '<td class="itemname">' . $str->datetitle . ':</td>' . "\n";
        echo '<td class="itemvalue">';
        $names = array();
        $i_max = count($conditiondatedirection);
        for ($i = 0; $i < $i_max; $i++) {
            $conditiondatetime[$i]['minutes'] = intval($conditiondatetime[$i]['minutes']) - intval($conditiondatetime[$i]['minutes']) % 5;
            echo html_writer::start_tag('p');
            echo html_writer::select($conditiondatedirectionmenu, "conditiondatedirection[{$i}]", $conditiondatedirection[$i], '') . ' ';
            echo html_writer::select($days, "conditiondatetimeday[{$i}]", intval($conditiondatetime[$i]['mday']), '') . ' ';
            echo html_writer::select($months, "conditiondatetimemonth[{$i}]", intval($conditiondatetime[$i]['mon']), '') . ' ';
            echo html_writer::select($years, "conditiondatetimeyear[{$i}]", intval($conditiondatetime[$i]['year']), '') . ' ';
            echo html_writer::select($hours, "conditiondatetimehours[{$i}]", intval($conditiondatetime[$i]['hours']), '') . ' ';
            echo html_writer::select($minutes, "conditiondatetimeminutes[{$i}]", intval($conditiondatetime[$i]['minutes']), '') . ' ';
            echo html_writer::end_tag('p');
            $names[] = "conditiondatedirection[{$i}]";
            $names[] = "conditiondatetimeday[{$i}]";
            $names[] = "conditiondatetimemonth[{$i}]";
            $names[] = "conditiondatetimeyear[{$i}]";
            $names[] = "conditiondatetimehours[{$i}]";
            $names[] = "conditiondatetimeminutes[{$i}]";
        }
        $names = implode("', '", $names);
        echo '</td>' . "\n";
        echo '<td class="itemselect">';
        $script = "return set_disabled(this.form, new Array('{$names}'), (! this.checked))";
        echo html_writer::checkbox('select_conditiondate', 1, optional_param('select_conditiondate', 0, PARAM_INT), '', array('onclick' => $script));
        echo '</td>' . "\n";
        echo '</tr>' . "\n";
        // =====================
        // condition grades
        // =====================
        //
        if (count($conditiongradeitemidmenu)) {
            echo '<tr>' . "\n";
            echo '<td class="itemname">' . $str->gradetitle . ':</td>' . "\n";
            echo '<td class="itemvalue">';
            $names = array();
            $i_max = count($conditiongradeitemid);
            for ($i = 0; $i < $i_max; $i++) {
                echo html_writer::start_tag('p');
                echo html_writer::select($conditiongradeitemidmenu, 'conditiongradeitemid[' . $i . ']', $conditiongradeitemid[$i], '', array('class' => 'conditiongradeitemid')) . ' ';
                echo html_writer::empty_tag('br');
                echo $str->grademin . ' ';
                echo ' <input id="id_conditiongrademin[' . $i . ']" type="text" name="conditiongrademin[' . $i . ']" size="3" value="' . $conditiongrademin[$i] . '" />% ';
                echo html_writer::empty_tag('img', array('src' => $OUTPUT->pix_url('spacer'), 'class' => 'spacer', 'width' => '30px'));
                echo $str->grademax . ' ';
                echo ' <input id="id_conditiongrademax[' . $i . ']" type="text" name="conditiongrademax[' . $i . ']" size="3" value="' . $conditiongrademax[$i] . '" />% ';
                echo html_writer::end_tag('p');
                $names[] = 'conditiongradeitemid[' . $i . ']';
                $names[] = 'conditiongrademin[' . $i . ']';
                $names[] = 'conditiongrademax[' . $i . ']';
            }
            $names = implode("', '", $names);
            echo '</td>' . "\n";
            echo '<td class="itemselect">';
            $script = "return set_disabled(this.form, new Array('{$names}'), (! this.checked))";
            echo html_writer::checkbox('select_conditiongrade', 1, optional_param('select_conditiongrade', 0, PARAM_INT), '', array('onclick' => $script));
            echo '</td>' . "\n";
            echo '</tr>' . "\n";
        }
        // =====================
        // condition userfields
        // =====================
        //
        if (count($conditionfieldnamemenu)) {
            echo '<tr>' . "\n";
            echo '<td class="itemname">' . $str->userfield . ':</td>' . "\n";
            echo '<td class="itemvalue">';
            $names = array();
            $i_max = count($conditionfieldname);
            for ($i = 0; $i < $i_max; $i++) {
                echo html_writer::start_tag('p');
                echo html_writer::select($conditionfieldnamemenu, 'conditionfieldname[' . $i . ']', $conditionfieldname[$i], '', array('class' => 'conditionfieldname')) . ' ';
                echo html_writer::select($conditionfieldoperatormenu, 'conditionfieldoperator[' . $i . ']', $conditionfieldoperator[$i], '', array('class' => 'conditionfieldoperator')), ' ';
                echo '<input id="id_conditionfieldvalue[' . $i . ']" type="text" name="conditionfieldvalue[' . $i . ']" size="15" value="' . $conditionfieldvalue[$i] . '" />';
                echo html_writer::end_tag('p');
                $names[] = 'conditionfieldname[' . $i . ']';
                $names[] = 'conditionfieldoperator[' . $i . ']';
                $names[] = 'conditionfieldvalue[' . $i . ']';
            }
            $names = implode("', '", $names);
            echo '</td>' . "\n";
            echo '<td class="itemselect">';
            $script = "return set_disabled(this.form, new Array('{$names}'), (! this.checked))";
            echo html_writer::checkbox('select_conditionfield', 1, optional_param('select_conditionfield', 0, PARAM_INT), '', array('onclick' => $script));
            echo '</td>' . "\n";
            echo '</tr>' . "\n";
        }
        // =====================
        // condition groups
        // =====================
        //
        if (count($conditiongroupidmenu)) {
            echo '<tr>' . "\n";
            echo '<td class="itemname">' . get_string('group') . ':</td>' . "\n";
            echo '<td class="itemvalue">';
            $names = array();
            $i_max = count($conditiongroupid);
            for ($i = 0; $i < $i_max; $i++) {
                echo html_writer::start_tag('p');
                echo html_writer::select($conditiongroupidmenu, 'conditiongroupid[' . $i . ']', $conditiongroupid[$i], '', array('class' => 'conditiongroupid'));
                echo html_writer::end_tag('p');
                $names[] = 'conditiongroupid[' . $i . ']';
            }
            $names = implode("', '", $names);
            echo '</td>' . "\n";
            echo '<td class="itemselect">';
            $script = "return set_disabled(this.form, new Array('{$names}'), (! this.checked))";
            echo html_writer::checkbox('select_conditiongroup', 1, optional_param('select_conditiongroup', 0, PARAM_INT), '', array('onclick' => $script));
            echo '</td>' . "\n";
            echo '</tr>' . "\n";
        }
        // =====================
        // condition groupings
        // =====================
        //
        if (count($conditiongroupingidmenu)) {
            echo '<tr>' . "\n";
            echo '<td class="itemname">' . get_string('grouping', 'group') . ':</td>' . "\n";
            echo '<td class="itemvalue">';
            $names = array();
            $i_max = count($conditiongroupingid);
            for ($i = 0; $i < $i_max; $i++) {
                echo html_writer::start_tag('p');
                echo html_writer::select($conditiongroupingidmenu, 'conditiongroupingid[' . $i . ']', $conditiongroupingid[$i], '', array('class' => 'conditiongroupingid'));
                echo html_writer::end_tag('p');
                $names[] = 'conditiongroupingid[' . $i . ']';
            }
            $names = implode("', '", $names);
            echo '</td>' . "\n";
            echo '<td class="itemselect">';
            $script = "return set_disabled(this.form, new Array('{$names}'), (! this.checked))";
            echo html_writer::checkbox('select_conditiongrouping', 1, optional_param('select_conditiongrouping', 0, PARAM_INT), '', array('onclick' => $script));
            echo '</td>' . "\n";
            echo '</tr>' . "\n";
        }
        // =====================
        // conditions completion
        // of other activities
        // =====================
        //
        if (count($conditioncmidmenu)) {
            echo '<tr>' . "\n";
            echo '<td class="itemname">' . $str->activitycompletion . ':</td>' . "\n";
            echo '<td class="itemvalue">';
            $names = array();
            $i_max = count($conditioncmid);
            for ($i = 0; $i < $i_max; $i++) {
                echo html_writer::start_tag('p');
                echo html_writer::select($conditioncmidmenu, 'conditioncmid[' . $i . ']', $conditioncmid[$i], '', array('class' => 'conditioncmid'));
                echo html_writer::empty_tag('br');
                echo html_writer::checkbox('conditioncmungraded[' . $i . ']', 1, $conditioncmungraded[$i], $str->conditioncmungraded, array('class' => 'conditioncmungraded'));
                echo html_writer::empty_tag('br');
                echo html_writer::checkbox('conditioncmresources[' . $i . ']', 1, $conditioncmresources[$i], $str->conditioncmresources, array('class' => 'conditioncmresources'));
                echo html_writer::empty_tag('br');
                echo html_writer::checkbox('conditioncmlabels[' . $i . ']', 1, $conditioncmlabels[$i], $str->conditioncmlabels, array('class' => 'conditioncmlabels'));
                echo html_writer::empty_tag('br');
                echo html_writer::select($conditioncmcompletionmenu, 'conditioncmcompletion[' . $i . ']', $conditioncmcompletion[$i], '', array('class' => 'conditioncmcompletion'));
                echo html_writer::end_tag('p');
                $names[] = 'conditioncmid[' . $i . ']';
                $names[] = 'conditioncmungraded[' . $i . ']';
                $names[] = 'conditioncmresources[' . $i . ']';
                $names[] = 'conditioncmlabels[' . $i . ']';
                $names[] = 'conditioncmcompletion[' . $i . ']';
            }
            $names = implode("', '", $names);
            echo '</td>' . "\n";
            echo '<td class="itemselect">';
            $script = "return set_disabled(this.form, new Array('{$names}'), (! this.checked))";
            echo html_writer::checkbox('select_conditioncm', 1, optional_param('select_conditioncm', 0, PARAM_INT), '', array('onclick' => $script));
            echo '</td>' . "\n";
            echo '</tr>' . "\n";
        }
        // =====================
        // conditions actions
        // =====================
        //
        if (count($conditionactionmenu)) {
            echo '<tr>' . "\n";
            echo '<td class="itemname">' . $str->showavailability . ':</td>' . "\n";
            echo '<td class="itemvalue">';
            $names = array();
            $i_max = count($conditionaction);
            for ($i = 0; $i < $i_max; $i++) {
                echo html_writer::start_tag('p');
                echo html_writer::select($conditionactionmenu, 'conditionaction[' . $i . ']', $conditionaction[$i], '', array('class' => 'conditionaction'));
                echo html_writer::end_tag('p');
                $names[] = 'conditionaction[' . $i . ']';
            }
            $names = implode("', '", $names);
            echo '</td>' . "\n";
            echo '<td class="itemselect">';
            $script = "return set_disabled(this.form, new Array('{$names}'), (! this.checked))";
            echo html_writer::checkbox('select_conditionaction', 1, optional_param('select_conditionaction', 0, PARAM_INT), '', array('onclick' => $script));
            echo '</td>' . "\n";
            echo '</tr>' . "\n";
        }
    }
    // ============================
    // Activity completion
    // ============================
    //
    if ($enablecompletion) {
        print_sectionheading(get_string('activitycompletion', 'completion'), 'completion', true);
        echo '<tr>' . "\n";
        echo '<td class="itemname removecompletion">' . get_string('removecompletion', $plugin) . ':</td>' . "\n";
        echo '<td class="itemvalue">';
        echo html_writer::checkbox('removecompletion', 1, $removecompletion, get_string('removecompletion_help', $plugin));
        echo '</td>' . "\n";
        echo '<td class="itemselect">';
        $script = "return set_disabled(this.form, new Array('removecompletion'), (! this.checked), true)";
        echo html_writer::checkbox('select_removecompletion', 1, optional_param('select_removecompletion', 0, PARAM_INT), '', array('onclick' => $script));
        echo '</td>' . "\n";
        echo '</tr>' . "\n";
        echo '<tr>' . "\n";
        echo '<td class="itemname erasecompletion">' . get_string('erasecompletion', $plugin) . ':</td>' . "\n";
        echo '<td class="itemvalue">';
        echo html_writer::checkbox('erasecompletion', 1, $erasecompletion, get_string('erasecompletion_help', $plugin));
        echo '</td>' . "\n";
        echo '<td class="itemselect">';
        $script = "return set_disabled(this.form, new Array('erasecompletion'), (! this.checked), true)";
        echo html_writer::checkbox('select_erasecompletion', 1, optional_param('select_erasecompletion', 0, PARAM_INT), '', array('onclick' => $script));
        echo '</td>' . "\n";
        echo '</tr>' . "\n";
        // =====================
        // completion type
        // none/manual/automatic
        // =====================
        //
        echo '<tr>' . "\n";
        echo '<td class="itemname">' . get_string('completion', 'completion') . ':</td>' . "\n";
        echo '<td class="itemvalue">';
        echo html_writer::select($completiontrackingmenu, 'completiontracking', $completiontracking, '');
        echo html_writer::empty_tag('br') . '(' . get_string('usedbyall', $plugin) . ')';
        echo '</td>' . "\n";
        echo '<td class="itemselect">';
        $script = "return set_disabled(this.form, new Array('completiontracking'), (! this.checked))";
        echo html_writer::checkbox('select_completiontracking', 1, optional_param('select_completiontracking', 0, PARAM_INT), '', array('onclick' => $script));
        echo '</td>' . "\n";
        echo '</tr>' . "\n";
        // =====================
        // require view
        // =====================
        //
        //echo '<tr>'."\n";
        //echo '<td class="itemname">'.get_string('completionview', 'completion').':</td>'."\n";
        //echo '<td class="itemvalue">';
        //echo html_writer::checkbox('completionview', 1, $completionview, get_string('completionview_desc', 'completion'));
        //echo '</td>'."\n";
        //echo '<td class="itemselect">';
        //$script = "return set_disabled(this.form, new Array('completionview'), (! this.checked), true)";
        //echo html_writer::checkbox('select_completionview', 1, optional_param('select_completionview', 0, PARAM_INT), '', array('onclick' => $script));
        //echo '</td>'."\n";
        //echo '</tr>'."\n";
        // =====================
        // require grade
        // =====================
        //
        //echo '<tr>'."\n";
        //echo '<td class="itemname">'.get_string('completionusegrade', 'completion').':</td>'."\n";
        //echo '<td class="itemvalue">';
        //echo html_writer::checkbox('completiongrade', 1, $completiongrade, get_string('completionusegrade_desc', 'completion'));
        //echo '</td>'."\n";
        //echo '<td class="itemselect">';
        //$script = "return set_disabled(this.form, new Array('completiongrade'), (! this.checked), true)";
        //echo html_writer::checkbox('select_completiongrade', 1, optional_param('select_completiongrade', 0, PARAM_INT), '', array('onclick' => $script));
        //echo '</td>'."\n";
        //echo '</tr>'."\n";
        // =====================
        // completion date
        // =====================
        //
        echo '<tr>' . "\n";
        echo '<td class="itemname">' . get_string('completionexpected', 'completion') . ':</td>' . "\n";
        echo '<td class="itemvalue">';
        echo html_writer::select_time('days', 'completionday', $completiondate, 1) . ' ';
        echo html_writer::select_time('months', 'completionmonth', $completiondate, 1) . ' ';
        echo html_writer::select_time('years', 'completionyear', $completiondate, 1);
        echo html_writer::empty_tag('br') . '(' . get_string('usedbyall', $plugin) . ')';
        echo '</td>' . "\n";
        echo '<td class="itemselect">';
        $script = "return set_disabled(this.form, new Array('completionday', 'completionmonth', 'completionyear'), (! this.checked))";
        echo html_writer::checkbox('select_completiondate', 1, optional_param('select_completiondate', 0, PARAM_INT), '', array('onclick' => $script));
        echo '</td>' . "\n";
        echo '</tr>' . "\n";
        // =====================
        // activity-specific
        // completion settings
        // =====================
        //
        foreach ($completionfields as $name => $field) {
            $text = $field->text;
            $desc = $field->desc;
            $type = $field->type;
            if ($text == $desc) {
                $desc = '';
            }
            if (empty($field->params['name'])) {
                $fieldname = $name;
            } else {
                $fieldname = $field->params['name'];
            }
            if ($modnames = implode(', ', $field->mods)) {
                $modnames = get_string('completionfieldactivities', $plugin, $modnames);
                $modnames = html_writer::tag('span', "({$modnames})", array('class' => 'completionfieldmodnames'));
                if ($desc) {
                    $modnames = html_writer::empty_tag('br') . $modnames;
                }
            }
            echo '<tr>' . "\n";
            echo '<td class="itemname">' . $text . ':</td>' . "\n";
            echo '<td class="itemvalue">';
            switch ($type) {
                case 'checkbox':
                    echo html_writer::checkbox($name, 1, ${$name}, ' ' . $desc . $modnames, $field->params);
                    break;
                case 'duration':
                    $options = implode('', $field->options);
                    echo $desc . ' ' . html_writer::empty_tag('input', $field->params['number']) . ' ' . html_writer::tag('select', $options, $field->params['unit']) . ' ' . $modnames;
                    break;
                case 'select':
                    $options = implode('', $field->options);
                    echo $desc . ' ' . html_writer::tag('select', $options, $field->params) . $modnames;
                    break;
                case 'textbox':
                    echo $desc . ' ' . html_writer::empty_tag('input', $field->params) . ' ' . $modnames;
                    break;
            }
            echo '</td>' . "\n";
            echo '<td class="itemselect">';
            $fieldnames = "'{$fieldname}'";
            if ($type == 'duration') {
                $fieldnames .= ",'" . $fieldname . "_unit'";
            }
            $script = $type == 'checkbox' ? 'true' : 'false';
            // sync_checkbox
            $script = "return set_disabled(this.form, new Array({$fieldnames}), (! this.checked), {$script})";
            echo html_writer::checkbox('select_' . $name, 1, optional_param('select_' . $name, 0, PARAM_INT), '', array('onclick' => $script));
            echo '</td>' . "\n";
            echo '</tr>' . "\n";
        }
    }
    // ============================
    // Activity competency
    // ============================
    //
    if ($enablecompetency) {
        print_sectionheading(get_string('competencies', 'competency'), 'competency', true);
        echo '<tr>' . "\n";
        echo '<td class="itemname">' . get_string('uponcoursemodulecompletion', 'tool_lp') . ':</td>' . "\n";
        echo '<td class="itemvalue">';
        echo html_writer::select($competencyrulemenu, 'competencyrule', $competencyrule, '');
        echo html_writer::empty_tag('br') . '(' . get_string('usedbyall', $plugin) . ')';
        echo '</td>' . "\n";
        echo '<td class="itemselect">';
        $script = "return set_disabled(this.form, new Array('competencyrule'), (! this.checked))";
        echo html_writer::checkbox('select_competencyrule', 1, optional_param('select_competencyrule', 0, PARAM_INT), '', array('onclick' => $script));
        echo '</td>' . "\n";
        echo '</tr>' . "\n";
    }
    // ============================
    // Actions
    // ============================
    //
    print_sectionheading(get_string('actions'), 'actions', false);
    echo '<tr>' . "\n";
    echo '<td class="itemname">&nbsp;</td>' . "\n";
    echo '<td class="itemvalue">' . "\n";
    $btn = get_string('applysettings', $plugin);
    $msg = js(get_string('confirmapply', $plugin));
    echo '<input type="submit" name="apply" value="' . $btn . '" onclick="return confirm_action(' . "'{$msg}'" . ', true)" />' . "\n";
    echo ' &nbsp; &nbsp; ' . "\n";
    echo '<input type="submit" name="cancel" value="' . get_string('cancel') . '" />' . "\n";
    echo ' &nbsp; &nbsp; ' . "\n";
    $btn = get_string('delete');
    $msg = js(get_string('confirmdelete', $plugin));
    echo '<input type="submit" name="delete" value="' . $btn . '" onclick="return confirm_action(' . "'{$msg}'" . ')" />' . "\n";
    echo '<input type="hidden" name="id" value="' . $block_instance->id . '" />' . "\n";
    echo '<input type="hidden" name="sesskey" value="' . sesskey() . '" />' . "\n";
    echo '</td><td></td>' . "\n";
    echo '</tr>' . "\n";
    echo '</table>' . "\n";
    echo '</form>' . "\n";
}