/**
  * Deletes a particular model.
  * If deletion is successful, the browser will be redirected to the 'admin' page.
  * @param integer $id the ID of the model to be deleted
  */
 public function actionDelete($id)
 {
     $model = $this->loadModel($id);
     $model->excluida = 1;
     $conditions = 'tamanho_tipo_massa_id = ' . $model->id;
     $pizza = Pizza::model()->find($conditions);
     if (empty($pizza)) {
         $model->delete();
     } else {
         $model->save();
     }
     // if AJAX request (triggered by deletion via admin grid view), we should not redirect the browser
     if (!isset($_GET['ajax'])) {
         $this->redirect(isset($_POST['returnUrl']) ? $_POST['returnUrl'] : array('index'));
     }
 }