/**
* Returns the courses to load events for, the
*
* @param array $courseeventsfrom An array of courses to load calendar events for
* @param bool $ignorefilters specify the use of filters, false is set as default
* @return array An array of courses, groups, and user to load calendar events for based upon filters
*/
function calendar_set_filters(array $courseeventsfrom, $ignorefilters = false)
{
global $USER, $CFG, $DB;
// For backwards compatability we have to check whether the courses array contains
// just id's in which case we need to load course objects.
$coursestoload = array();
foreach ($courseeventsfrom as $id => $something) {
if (!is_object($something)) {
$coursestoload[] = $id;
unset($courseeventsfrom[$id]);
}
}
if (!empty($coursestoload)) {
// TODO remove this in 2.2
debugging('calendar_set_filters now preferes an array of course objects with preloaded contexts', DEBUG_DEVELOPER);
$courseeventsfrom = array_merge($courseeventsfrom, $DB->get_records_list('course', 'id', $coursestoload));
}
$courses = array();
$user = false;
$group = false;
// capabilities that allow seeing group events from all groups
// TODO: rewrite so that moodle/calendar:manageentries is not necessary here
$allgroupscaps = array('moodle/site:accessallgroups', 'moodle/calendar:manageentries');
$isloggedin = isloggedin();
if ($ignorefilters || calendar_show_event_type(CALENDAR_EVENT_COURSE)) {
$courses = array_keys($courseeventsfrom);
}
if ($ignorefilters || calendar_show_event_type(CALENDAR_EVENT_GLOBAL)) {
$courses[] = SITEID;
}
$courses = array_unique($courses);
sort($courses);
if (!empty($courses) && in_array(SITEID, $courses)) {
// Sort courses for consistent colour highlighting
// Effectively ignoring SITEID as setting as last course id
$key = array_search(SITEID, $courses);
unset($courses[$key]);
$courses[] = SITEID;
}
if ($ignorefilters || $isloggedin && calendar_show_event_type(CALENDAR_EVENT_USER)) {
$user = $USER->id;
}
if (!empty($courseeventsfrom) && (calendar_show_event_type(CALENDAR_EVENT_GROUP) || $ignorefilters)) {
if (count($courseeventsfrom) == 1) {
$course = reset($courseeventsfrom);
if (has_any_capability($allgroupscaps, context_course::instance($course->id))) {
$coursegroups = groups_get_all_groups($course->id, 0, 0, 'g.id');
$group = array_keys($coursegroups);
}
}
if ($group === false) {
if (!empty($CFG->calendar_adminseesall) && has_any_capability($allgroupscaps, context_system::instance())) {
$group = true;
} else {
if ($isloggedin) {
$groupids = array();
// We already have the courses to examine in $courses
// For each course...
foreach ($courseeventsfrom as $courseid => $course) {
// If the user is an editing teacher in there,
if (!empty($USER->groupmember[$course->id])) {
// We've already cached the users groups for this course so we can just use that
$groupids = array_merge($groupids, $USER->groupmember[$course->id]);
} else {
if ($course->groupmode != NOGROUPS || !$course->groupmodeforce) {
// If this course has groups, show events from all of those related to the current user
$coursegroups = groups_get_user_groups($course->id, $USER->id);
$groupids = array_merge($groupids, $coursegroups['0']);
}
}
}
if (!empty($groupids)) {
$group = $groupids;
}
}
}
}
}
if (empty($courses)) {
$courses = false;
}
return array($courses, $group, $user);
}
/**
* Displays a filter selection table
*
* @param calendar_information $calendar
* @return string
*/
protected function filter_selection_table(calendar_information $calendar, moodle_url $returnurl = null)
{
global $SESSION;
if ($returnurl === null) {
$returnurl = $this->page->url;
}
$output = html_writer::start_tag('div', array('class' => 'filters'));
$output .= html_writer::start_tag('table');
$output .= html_writer::start_tag('tr');
// Global events
$link = new moodle_url(CALENDAR_URL . 'set.php', array('var' => 'showglobal', 'return' => base64_encode($returnurl->out(false)), 'sesskey' => sesskey()));
if (calendar_show_event_type(CALENDAR_EVENT_GLOBAL)) {
$output .= html_writer::tag('td', '', array('class' => 'calendar_event_global', 'style' => 'width:8px;'));
$output .= html_writer::tag('td', html_writer::tag('strong', get_string('globalevents', 'calendar')) . ' ' . get_string('shown', 'calendar') . ' (' . html_writer::link($link, get_string('clickhide', 'calendar')) . ')');
} else {
$output .= html_writer::tag('td', '', array('style' => 'width:8px;'));
$output .= html_writer::tag('td', html_writer::tag('strong', get_string('globalevents', 'calendar')) . ' ' . get_string('hidden', 'calendar') . ' (' . html_writer::link($link, get_string('clickshow', 'calendar')) . ')');
}
// Course events
$link = new moodle_url(CALENDAR_URL . 'set.php', array('var' => 'showcourses', 'return' => base64_encode($returnurl->out(false)), 'sesskey' => sesskey()));
if (calendar_show_event_type(CALENDAR_EVENT_COURSE)) {
$output .= html_writer::tag('td', '', array('class' => 'calendar_event_course', 'style' => 'width:8px;'));
$output .= html_writer::tag('td', html_writer::tag('strong', get_string('courseevents', 'calendar')) . ' ' . get_string('shown', 'calendar') . ' (' . html_writer::link($link, get_string('clickhide', 'calendar')) . ')');
} else {
$output .= html_writer::tag('td', '', array('style' => 'width:8px;'));
$output .= html_writer::tag('td', html_writer::tag('strong', get_string('courseevents', 'calendar')) . ' ' . get_string('hidden', 'calendar') . ' (' . html_writer::link($link, get_string('clickshow', 'calendar')) . ')');
}
$output .= html_writer::end_tag('tr');
if (isloggedin() && !isguestuser()) {
$output .= html_writer::start_tag('tr');
// Group events
$link = new moodle_url(CALENDAR_URL . 'set.php', array('var' => 'showgroups', 'return' => base64_encode($returnurl->out(false)), 'sesskey' => sesskey()));
if (calendar_show_event_type(CALENDAR_EVENT_GROUP)) {
$output .= html_writer::tag('td', '', array('class' => 'calendar_event_group', 'style' => 'width:8px;'));
$output .= html_writer::tag('td', html_writer::tag('strong', get_string('groupevents', 'calendar')) . ' ' . get_string('shown', 'calendar') . ' (' . html_writer::link($link, get_string('clickhide', 'calendar')) . ')');
} else {
$output .= html_writer::tag('td', '', array('style' => 'width:8px;'));
$output .= html_writer::tag('td', html_writer::tag('strong', get_string('groupevents', 'calendar')) . ' ' . get_string('hidden', 'calendar') . ' (' . html_writer::link($link, get_string('clickshow', 'calendar')) . ')');
}
// User events
$link = new moodle_url(CALENDAR_URL . 'set.php', array('var' => 'showuser', 'return' => base64_encode($returnurl->out(false)), 'sesskey' => sesskey()));
if (calendar_show_event_type(CALENDAR_EVENT_USER)) {
$output .= html_writer::tag('td', '', array('class' => 'calendar_event_user', 'style' => 'width:8px;'));
$output .= html_writer::tag('td', html_writer::tag('strong', get_string('userevents', 'calendar')) . ' ' . get_string('shown', 'calendar') . ' (' . html_writer::link($link, get_string('clickhide', 'calendar')) . ')');
} else {
$output .= html_writer::tag('td', '', array('style' => 'width:8px;'));
$output .= html_writer::tag('td', html_writer::tag('strong', get_string('userevents', 'calendar')) . ' ' . get_string('hidden', 'calendar') . ' (' . html_writer::link($link, get_string('clickshow', 'calendar')) . ')');
}
$output .= html_writer::end_tag('tr');
}
$output .= html_writer::end_tag('table');
$output .= html_writer::end_tag('div');
return $output;
}
