implement registration

backend/views/event-registration/index.php

@@ -13,7 +13,7 @@ $this->params['breadcrumbs'][] = $this->title;
 <div class="event-registration-index">
 
     <h1><?= Html::encode($this->title) ?></h1>
-    <?php // echo $this->render('_search', ['model' => $searchModel]); ?>
+    <?php  echo $this->render('_search', ['model' => $searchModel]); ?>
 
     <p>
         <?= Html::a(Yii::t('event-registration', 'Create Event Registration'), ['create'], ['class' => 'btn btn-success']) ?>
@@ -21,16 +21,15 @@ $this->params['breadcrumbs'][] = $this->title;
 
     <?= GridView::widget([
         'dataProvider' => $dataProvider,
-        'filterModel' => $searchModel,
         'columns' => [
             ['class' => 'yii\grid\SerialColumn'],
 
             'id',
             'id_event',
             'id_customer',
-            'created_at',
-            'updated_at',
-            // 'canceled_at',
+            'created_at:datetime',
+            'updated_at:datetime',
+             'canceled_at:datetime',
 
             ['class' => 'yii\grid\ActionColumn'],
         ],