/** * Deletes all associated ClassRegistrations * @return void */ public function DeleteAllClassRegistrations() { if (is_null($this->intSignupFormId)) { throw new QUndefinedPrimaryKeyException('Unable to call UnassociateClassRegistration on this unsaved ClassMeeting.'); } // Get the Database Object for this Class $objDatabase = ClassMeeting::GetDatabase(); // Journaling if ($objDatabase->JournalingDatabase) { foreach (ClassRegistration::LoadArrayByClassMeetingId($this->intSignupFormId) as $objClassRegistration) { $objClassRegistration->Journal('DELETE'); } } // Perform the SQL Query $objDatabase->NonQuery(' DELETE FROM `class_registration` WHERE `class_meeting_id` = ' . $objDatabase->SqlVariable($this->intSignupFormId) . ' '); }