public function actionAdd()
 {
     $model = new Relation();
     if (($data = Yii::app()->getRequest()->getPost('Relation')) !== null) {
         $model->setAttributes($data);
         if ($model->validate()) {
             if ($model->addRelation()) {
                 $this->send(ERROR_NONE, 'success');
             }
         } else {
             $this->error->capture($model);
         }
     }
     $this->render('add', array('relation' => $model));
 }
 /**
  * Manages all models.
  */
 public function actionAdmin()
 {
     $model = new Relation('search');
     $model->unsetAttributes();
     // clear any default values
     if (isset($_GET['Relation'])) {
         $model->setAttributes($_GET['Relation']);
     }
     $this->render('admin', array('model' => $model));
 }