Yii2: CRUD

Walau sebenarnya proses CRUD bisa dilakukan secara tradisional (raw-sql), namun disarankan tetap menggunakan cara Yii agara lebih aman. Berikut contoh menggunakannya:

   public function actionCrud() {
     $model = new TblBuku();
     $request = Yii::$app->request;
     $act = $request->post('act');

     if($act=='i') {
         if ($model->load(Yii::$app->request->post()) && $model->save()) {
             // data is valid and saved to database
             //print_r(Yii::$app->request->post());
             //exit;
             return $this->redirect(['index', 'id' => $model->id]);
         }

         return $this->render('index', [
             'model' => $model,
         ]);

     }
     if($act=='u') {
         $id = $request->post('id');
         $model = TblBuku::findOne($id);
         if ($model->load(Yii::$app->request->post()) && $model->save()) {
              // data is valid and saved to database
              //print_r(Yii::$app->request->post());
              //exit;
             return $this->redirect(['index', 'id' => $model->id]);
         }

         return $this->render('index', [
             'model' => $model,
         ]);

     }
     if($act=='d') {
         $id = $request->post('id');
         $model = TblBuku::findOne($id);
         if ($model->delete()) {
             // data is valid and saved to database
             //print_r(Yii::$app->request->post());
             //exit;
             return $this->redirect(['index', 'id' => $model->id]);
         }

         return $this->render('index', [
             'model' => $model,
         ]);

     }

   }

di form sebagai berikut:

<div class="modal fade" id="addData" tabindex="-1" role="dialog" aria-hidden="true">
  <div class="modal-dialog modal-lg">
    <div class="modal-content">
      <div class="modal-header">
        <h5 class="modal-title">Modal title</h5>
        <button type="button" class="close" data-dismiss="modal" aria-label="Close">	<span aria-hidden="true">&times;</span>
        </button>
      </div>
      <div class="modal-body">
        <?php $form = ActiveForm::begin([
'id' => 'buku-form', 
'action' => 'index.php?r=buku%2Fcrud']); ?>
        <div class="form-body">
	  <div class="form-row">
	    <div class="form-group col-md-6">
		<?= $form->field($model, 'title')->textInput(['autofocus' => true]) ?>
	    </div>
		<div class="form-group col-md-6">
		<?= $form->field($model, 'author')->textInput(['autofocus' => true]) ?>
	        </div>
	    </div>
      </div>
      <div class="modal-footer">
        <?= Html::hiddenInput('act', 'd') ?>
        <?= Html::hiddenInput('id', 4) ?>
        <button type="button" class="btn btn-secondary" data-dismiss="modal">Close</button>
        <button type="submit" class="btn btn-primary">Save changes</button>
      </div>
      <?php ActiveForm::end(); ?>
    </div>
  </div>
</div>

hanya sekedar catatan.