public function delete()
{
// Delete related records
OphTrOperationbooking_Operation_Date_Letter_Sent::model()->deleteAll('element_id = ?', array($this->id));
OphTrOperationbooking_Operation_Procedures::model()->deleteAll('element_id = ?', array($this->id));
OphTrOperationbooking_Operation_Booking::model()->deleteAll('element_id = ?', array($this->id));
OphTrOperationbooking_Operation_EROD::model()->deleteAll('element_id = ?', array($this->id));
parent::delete();
}
