/** * Updates an existing Skill model. * If update is successful, the browser will be redirected to the 'view' page. * @param integer $id * @return mixed */ public function actionUpdate($id) { $model = $this->findModel($id); $model->scenario = 'update'; if ($model->load(Yii::$app->request->post())) { $oldImg = $model->image; $old_parents = $model->parents; MyModel::upload($model); if ($model->save()) { MyModel::updateParents($model); MyModel::updateChildParents($model, $old_parents); if ($oldImg != $model->image && $model->image != '') { MyModel::deleteFile($oldImg); } return $this->redirect(['view', 'id' => $model->id]); } return $this->render('update', ['model' => $model]); } else { return $this->render('update', ['model' => $model]); } }