/** * Checks if user has capability to move all category content to the new parent before * removing this category * * @param int $newcatid * @return bool */ public function can_move_content_to($newcatid) { global $CFG; require_once $CFG->libdir . '/questionlib.php'; $context = $this->get_context(); if (!$this->is_uservisible() || !has_capability('moodle/category:manage', $context)) { return false; } $testcaps = array(); // If this category has courses in it, user must have 'course:create' capability in target category. if ($this->has_courses()) { $testcaps[] = 'moodle/course:create'; } // If this category has subcategories or questions, user must have 'category:manage' capability in target category. if ($this->has_children() || question_context_has_any_questions($context)) { $testcaps[] = 'moodle/category:manage'; } if (!empty($testcaps)) { return has_all_capabilities($testcaps, context_coursecat::instance($newcatid)); } // There is no content but still return true. return true; }
/** * Defines the form. */ public function definition() { $mform = $this->_form; $this->coursecat = $this->_customdata; $categorycontext = context_coursecat::instance($this->coursecat->id); $categoryname = $this->coursecat->get_formatted_name(); // Check permissions, to see if it OK to give the option to delete // the contents, rather than move elsewhere. $candeletecontent = $this->coursecat->can_delete_full(); // Get the list of categories we might be able to move to. $displaylist = $this->coursecat->move_content_targets_list(); // Now build the options. $options = array(); if ($displaylist) { $options[0] = get_string('movecontentstoanothercategory'); } if ($candeletecontent) { $options[1] = get_string('deleteallcannotundo'); } if (empty($options)) { print_error('youcannotdeletecategory', 'error', 'index.php', $categoryname); } // Now build the form. $mform->addElement('header', 'general', get_string('categorycurrentcontents', '', $categoryname)); // Describe the contents of this category. $contents = ''; if ($this->coursecat->has_children()) { $contents .= '<li>' . get_string('subcategories') . '</li>'; } if ($this->coursecat->has_courses()) { $contents .= '<li>' . get_string('courses') . '</li>'; } if (question_context_has_any_questions($categorycontext)) { $contents .= '<li>' . get_string('questionsinthequestionbank') . '</li>'; } if (!empty($contents)) { $mform->addElement('static', 'emptymessage', get_string('thiscategorycontains'), html_writer::tag('ul', $contents)); } else { $mform->addElement('static', 'emptymessage', '', get_string('deletecategoryempty')); } // Give the options for what to do. $mform->addElement('select', 'fulldelete', get_string('whattodo'), $options); if (count($options) == 1) { $optionkeys = array_keys($options); $option = reset($optionkeys); $mform->hardFreeze('fulldelete'); $mform->setConstant('fulldelete', $option); } if ($displaylist) { $mform->addElement('select', 'newparent', get_string('movecategorycontentto'), $displaylist); if (in_array($this->coursecat->parent, $displaylist)) { $mform->setDefault('newparent', $this->coursecat->parent); } $mform->disabledIf('newparent', 'fulldelete', 'eq', '1'); } $mform->addElement('hidden', 'categoryid', $this->coursecat->id); $mform->setType('categoryid', PARAM_ALPHANUM); $mform->addElement('hidden', 'action', 'deletecategory'); $mform->setType('action', PARAM_ALPHANUM); $mform->addElement('hidden', 'sure'); // This gets set by default to ensure that if the user changes it manually we can detect it. $mform->setDefault('sure', md5(serialize($this->coursecat))); $mform->setType('sure', PARAM_ALPHANUM); $this->add_action_buttons(true, get_string('delete')); }
function definition() { global $CFG, $DB; $mform =& $this->_form; $category = $this->_customdata; $categorycontext = context_coursecat::instance($category->id); $this->_category = $category; /// Check permissions, to see if it OK to give the option to delete /// the contents, rather than move elsewhere. /// Are there any subcategories of this one, can they be deleted? $candeletecontent = true; $tocheck = get_child_categories($category->id); $containscategories = !empty($tocheck); $categoryids = array($category->id); while (!empty($tocheck)) { $checkcat = array_pop($tocheck); $childcategoryids[] = $checkcat->id; $tocheck = $tocheck + get_child_categories($checkcat->id); $chcontext = context_coursecat::instance($checkcat->id); if ($candeletecontent && !has_capability('moodle/category:manage', $chcontext)) { $candeletecontent = false; } } /// Are there any courses in here, can they be deleted? list($test, $params) = $DB->get_in_or_equal($categoryids); $containedcourses = $DB->get_records_sql("SELECT id,1 FROM {course} c WHERE c.category {$test}", $params); $containscourses = false; if ($containedcourses) { $containscourses = true; foreach ($containedcourses as $courseid => $notused) { if ($candeletecontent && !can_delete_course($courseid)) { $candeletecontent = false; break; } } } /// Are there any questions in the question bank here? $containsquestions = question_context_has_any_questions($categorycontext); /// Get the list of categories we might be able to move to. $testcaps = array(); if ($containscourses) { $testcaps[] = 'moodle/course:create'; } if ($containscategories || $containsquestions) { $testcaps[] = 'moodle/category:manage'; } $displaylist = array(); $notused = array(); if (!empty($testcaps)) { make_categories_list($displaylist, $notused, $testcaps, $category->id); } /// Now build the options. $options = array(); if ($displaylist) { $options[0] = get_string('movecontentstoanothercategory'); } if ($candeletecontent) { $options[1] = get_string('deleteallcannotundo'); } /// Now build the form. $mform->addElement('header', 'general', get_string('categorycurrentcontents', '', format_string($category->name, true, array('context' => $categorycontext)))); if ($containscourses || $containscategories || $containsquestions) { if (empty($options)) { print_error('youcannotdeletecategory', 'error', 'index.php', format_string($category->name, true, array('context' => $categorycontext))); } /// Describe the contents of this category. $contents = '<ul>'; if ($containscategories) { $contents .= '<li>' . get_string('subcategories') . '</li>'; } if ($containscourses) { $contents .= '<li>' . get_string('courses') . '</li>'; } if ($containsquestions) { $contents .= '<li>' . get_string('questionsinthequestionbank') . '</li>'; } $contents .= '</ul>'; $mform->addElement('static', 'emptymessage', get_string('thiscategorycontains'), $contents); /// Give the options for what to do. $mform->addElement('select', 'fulldelete', get_string('whattodo'), $options); if (count($options) == 1) { $optionkeys = array_keys($options); $option = reset($optionkeys); $mform->hardFreeze('fulldelete'); $mform->setConstant('fulldelete', $option); } if ($displaylist) { $mform->addElement('select', 'newparent', get_string('movecategorycontentto'), $displaylist); if (in_array($category->parent, $displaylist)) { $mform->setDefault('newparent', $category->parent); } $mform->disabledIf('newparent', 'fulldelete', 'eq', '1'); } } else { $mform->addElement('hidden', 'fulldelete', 1); $mform->setType('fulldelete', PARAM_INT); $mform->addElement('static', 'emptymessage', '', get_string('deletecategoryempty')); } $mform->addElement('hidden', 'delete'); $mform->setType('delete', PARAM_ALPHANUM); $mform->addElement('hidden', 'sure'); $mform->setType('sure', PARAM_ALPHANUM); $mform->setDefault('sure', md5(serialize($category))); //-------------------------------------------------------------------------------- $this->add_action_buttons(true, get_string('delete')); }
error('Incorrect category id', 'index.php'); } $heading = get_string('deletecategory', '', format_string($deletecat->name)); $context = get_context_instance(CONTEXT_COURSECAT, $delete); require_capability('moodle/category:delete', $context); $mform = new delete_category_form(null, $deletecat); $mform->set_data(array('delete' => $delete)); if ($mform->is_cancelled()) { redirect('index.php'); } else { if (!($data = $mform->get_data(false))) { require_once $CFG->libdir . '/questionlib.php'; print_category_edit_header(); print_heading($heading); print_box(get_string('deletecategorycheck2'), 'generalbox boxwidthnormal boxaligncenter'); if (question_context_has_any_questions($context)) { print_box(get_string('deletecoursecategorywithquestions', 'question'), 'generalbox boxwidthnormal boxaligncenter'); } $mform->display(); print_footer(); exit; } } print_category_edit_header(); print_heading($heading); if ($data->fulldelete) { category_delete_full($deletecat, true); } else { category_delete_move($deletecat, $data->newparent, true); } print_continue('index.php');