OphTrOperationnote_CataractComplication::model PHP Method

    public static function model($className = __CLASS__)
    {
        return parent::model($className);
    }

 public function up()
 {
     $pcRupture = OphTrOperationnote_CataractComplications::model()->findByAttributes(array('name' => 'PC rupture'));
     $vitreousLoss = OphTrOperationnote_CataractComplications::model()->findByAttributes(array('name' => 'Vitreous loss'));
     $pcRuptureNoLoss = OphTrOperationnote_CataractComplications::model()->findByAttributes(array('name' => 'PC rupture no vitreous loss'));
     $pcRuptureLoss = OphTrOperationnote_CataractComplications::model()->findByAttributes(array('name' => 'PC rupture with vitreous loss'));
     foreach (OphTrOperationnote_CataractComplication::model()->findAll('complication_id = :id', array('id' => $pcRupture->id)) as $complication) {
         $lossCount = Yii::app()->db->createCommand()->select('count(*)')->from('ophtroperationnote_cataract_complication')->where('cataract_id=:id1 and complication_id=:id2', array(':id1' => $complication->cataract_id, ':id2' => $vitreousLoss->id))->queryScalar();
         $complication->complication_id = $lossCount == 0 ? $pcRuptureNoLoss->id : $pcRuptureLoss->id;
         $complication->save();
     }
     $pcRupture->delete();
 }