/**
* Remove Turnitin class and assignment links from database
* so that new classes and assignments will be created.
*
* @param type $eventdata
* @return boolean
*/
public static function course_reset(\core\event\course_reset_ended $event)
{
global $DB;
$eventdata = $event->get_data();
$courseid = (int) $eventdata['courseid'];
$resetcourse = true;
$resetassign = isset($eventdata['other']['reset_options']['reset_assign_submissions']) ? $eventdata['other']['reset_options']['reset_assign_submissions'] : 0;
$resetforum = isset($eventdata['other']['reset_options']['reset_forum_all']) ? $eventdata['other']['reset_options']['reset_forum_all'] : 0;
// Get the modules that support the Plagiarism plugin by whether they have a class file.
$supportedmods = array();
foreach (scandir(__DIR__ . '/classes/modules/') as $filename) {
if (!in_array($filename, array(".", ".."))) {
$filename_ar = explode('.', $filename);
$classname_ar = explode('_', $filename_ar[0]);
// $filename_ar[0] is class name.
$supportedmods[] = $classname_ar[1];
// $classname_ar[1] is module name.
}
}
foreach ($supportedmods as $supportedmod) {
$module = $DB->get_record('modules', array('name' => $supportedmod));
// Get all the course modules that have Turnitin enabled
$sql = "SELECT cm.id\n FROM {course_modules} cm\n RIGHT JOIN {plagiarism_turnitin_config} ptc ON cm.id = ptc.cm\n WHERE cm.module = :moduleid\n AND cm.course = :courseid\n AND ptc.name = 'turnitin_assignid'";
$params = array('courseid' => $courseid, 'moduleid' => $module->id);
$modules = $DB->get_records_sql($sql, $params);
if (count($modules) > 0) {
$reset = "reset" . $supportedmod;
if (!empty(${$reset})) {
// Remove Plagiarism plugin submissions and assignment id from DB for this module.
foreach ($modules as $mod) {
$DB->delete_records('plagiarism_turnitin_files', array('cm' => $mod->id));
$DB->delete_records('plagiarism_turnitin_config', array('cm' => $mod->id, 'name' => 'turnitin_assignid'));
}
} else {
$resetcourse = false;
}
}
}
// If all turnitin enabled modules for this course have been reset
// then remove the Turnitin course id from the database
if ($resetcourse) {
$DB->delete_records('turnitintooltwo_courses', array('courseid' => $courseid, 'course_type' => 'PP'));
}
return true;
}
