/**
* Function to be run periodically according to the moodle
* This function searches for things that need to be done, such
* as sending out mail, toggling flags etc ...
* @return boolean always true
* @uses $CFG
* @uses $DB
*/
function scheduler_cron()
{
global $CFG, $DB;
$date = make_timestamp(date('Y'), date('m'), date('d'), date('H'), date('i'));
// for every appointment in all schedulers
$select = 'emaildate > 0 AND emaildate <= ? AND starttime > ?';
$slots = $DB->get_records_select('scheduler_slots', $select, array($date, $date), 'starttime');
foreach ($slots as $slot) {
// get teacher
$teacher = $DB->get_record('user', array('id' => $slot->teacherid));
// get scheduler, slot and course
$scheduler = scheduler_instance::load_by_id($slot->schedulerid);
$slotm = $scheduler->get_slot($slot->id);
$course = $DB->get_record('course', array('id' => $scheduler->course));
// get appointed student list
$appointments = $DB->get_records('scheduler_appointment', array('slotid' => $slot->id), '', 'id, studentid');
//if no email previously sent and one is required
foreach ($appointments as $appointment) {
$student = $DB->get_record('user', array('id' => $appointment->studentid));
cron_setup_user($student, $course);
$vars = scheduler_get_mail_variables($scheduler, $slotm, $teacher, $student, $course, $student);
scheduler_send_email_from_template($student, $teacher, $course, 'remindtitle', 'reminder', $vars, 'scheduler');
}
// mark as sent
$slot->emaildate = -1;
$DB->update_record('scheduler_slots', $slot);
}
cron_setup_user();
return true;
}
case 'revokeall':
$slotid = required_param('slotid', PARAM_INT);
$slot = $scheduler->get_slot($slotid);
$oldstudents = array();
foreach ($slot->get_appointments() as $app) {
$oldstudents[] = $app->studentid;
$slot->remove_appointment($app);
}
// notify student
if ($scheduler->allownotifications) {
foreach ($oldstudents as $oldstudent) {
include_once $CFG->dirroot . '/mod/scheduler/mailtemplatelib.php';
$student = $DB->get_record('user', array('id' => $oldstudent));
$teacher = $DB->get_record('user', array('id' => $slot->teacherid));
$vars = scheduler_get_mail_variables($scheduler, $slot, $teacher, $student, $COURSE, $student);
scheduler_send_email_from_template($student, $teacher, $COURSE, 'cancelledbyteacher', 'teachercancelled', $vars, 'scheduler');
}
}
$slot->save();
break;
/************************************ Toggling to unlimited group ***************************************/
/************************************ Toggling to unlimited group ***************************************/
case 'allowgroup':
$slotid = required_param('slotid', PARAM_INT);
$slot = new stdClass();
$slot->id = $slotid;
$slot->exclusivity = 0;
$DB->update_record('scheduler_slots', $slot);
break;
/************************************ Toggling to single student ******************************************/
/************************************ Toggling to single student ******************************************/