/**
* Deletes an event and if selected an repeated events in the same series
*
* This function deletes an event, any associated events if $deleterepeated=true,
* and cleans up any files associated with the events.
*
* @see self::delete()
*
* @param bool $deleterepeated delete event repeatedly
* @return bool succession of deleting event
*/
public function delete($deleterepeated = false)
{
global $DB;
// If $this->properties->id is not set then something is wrong
if (empty($this->properties->id)) {
debugging('Attempting to delete an event before it has been loaded', DEBUG_DEVELOPER);
return false;
}
$calevent = $DB->get_record('event', array('id' => $this->properties->id), '*', MUST_EXIST);
// Delete the event
$DB->delete_records('event', array('id' => $this->properties->id));
// Trigger an event for the delete action.
$eventargs = array('context' => $this->properties->context, 'objectid' => $this->properties->id, 'other' => array('repeatid' => empty($this->properties->repeatid) ? 0 : $this->properties->repeatid, 'timestart' => $this->properties->timestart, 'name' => $this->properties->name));
$event = \core\event\calendar_event_deleted::create($eventargs);
$event->add_record_snapshot('event', $calevent);
$event->trigger();
// If we are deleting parent of a repeated event series, promote the next event in the series as parent
if ($this->properties->id == $this->properties->repeatid && !$deleterepeated) {
$newparent = $DB->get_field_sql("SELECT id from {event} where repeatid = ? order by id ASC", array($this->properties->id), IGNORE_MULTIPLE);
if (!empty($newparent)) {
$DB->execute("UPDATE {event} SET repeatid = ? WHERE repeatid = ?", array($newparent, $this->properties->id));
// Get all records where the repeatid is the same as the event being removed
$events = $DB->get_records('event', array('repeatid' => $newparent));
// For each of the returned events trigger the event_update hook and an update event.
foreach ($events as $event) {
// Trigger an event for the update.
$eventargs['objectid'] = $event->id;
$eventargs['other']['timestart'] = $event->timestart;
$event = \core\event\calendar_event_updated::create($eventargs);
$event->trigger();
self::calendar_event_hook('update_event', array($event, false));
}
}
}
// If the editor context hasn't already been set then set it now
if ($this->editorcontext === null) {
$this->editorcontext = $this->properties->context;
}
// If the context has been set delete all associated files
if ($this->editorcontext !== null) {
$fs = get_file_storage();
$files = $fs->get_area_files($this->editorcontext->id, 'calendar', 'event_description', $this->properties->id);
foreach ($files as $file) {
$file->delete();
}
}
// Fire the event deleted hook
self::calendar_event_hook('delete_event', array($this->properties->id, $deleterepeated));
// If we need to delete repeated events then we will fetch them all and delete one by one
if ($deleterepeated && !empty($this->properties->repeatid) && $this->properties->repeatid > 0) {
// Get all records where the repeatid is the same as the event being removed
$events = $DB->get_records('event', array('repeatid' => $this->properties->repeatid));
// For each of the returned events populate a calendar_event object and call delete
// make sure the arg passed is false as we are already deleting all repeats
foreach ($events as $event) {
$event = new calendar_event($event);
$event->delete(false);
}
}
return true;
}
/**
* Tests for event validations related to calendar_event_deleted event.
*/
public function test_calendar_event_deleted_validations()
{
$this->resetAfterTest();
$context = context_user::instance($this->user->id);
// Test not setting other['repeatid'].
try {
\core\event\calendar_event_deleted::create(array('context' => $context, 'objectid' => 2, 'other' => array('timestart' => time(), 'name' => 'event')));
$this->fail("Event validation should not allow \\core\\event\\calendar_event_deleted to be triggered without\n other['repeatid']");
} catch (coding_exception $e) {
$this->assertContains('The \'repeatid\' value must be set in other.', $e->getMessage());
}
// Test not setting other['name'].
try {
\core\event\calendar_event_deleted::create(array('context' => $context, 'objectid' => 2, 'other' => array('repeatid' => 0, 'timestart' => time())));
$this->fail("Event validation should not allow \\core\\event\\calendar_event_deleted to be triggered without\n other['name']");
} catch (coding_exception $e) {
$this->assertContains('The \'name\' value must be set in other.', $e->getMessage());
}
// Test not setting other['timestart'].
try {
\core\event\calendar_event_deleted::create(array('context' => $context, 'objectid' => 2, 'other' => array('name' => 'event', 'repeatid' => 0)));
$this->fail("Event validation should not allow \\core\\event\\calendar_event_deleted to be triggered without\n other['timestart']");
} catch (coding_exception $e) {
$this->assertContains('The \'timestart\' value must be set in other.', $e->getMessage());
}
}
