public function search()
{
$criteria = new \CDbCriteria();
$criteria->compare('id', $this->id, true);
$criteria->compare('event_id', $this->event_id, true);
$criteria->compare('injection_status_id', $this->injection_status_id);
$criteria->compare('injection_deferralreason_id', $this->injection_deferral_reason_id);
$criteria->compare('injection_deferralreason_other', $this->injection_deferralreason_other);
return new \CActiveDataProvider(get_class($this), array('criteria' => $criteria));
}