/**
  * 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)
 {
     if (Yii::app()->request->isPostRequest) {
         // we only allow deletion via POST request
         //$this->loadModel($id)->delete();
         if (!Workshop::deleteWorkshopPost($id)) {
             throw new CHttpException(400, 'Failed! Unable to delete this event.');
         }
         // if AJAX request (triggered by deletion via admin grid view), we should not redirect the browser
         if (!isset($_GET['ajax'])) {
             $this->redirect(isset($_POST['returnUrl']) ? $_POST['returnUrl'] : array('admin'));
         }
     } else {
         throw new CHttpException(400, 'Invalid request. Please do not repeat this request again.');
     }
 }