- Add new attr

common/modules/blog/views/post-admin/_form.php

@@ -38,7 +38,10 @@ use common\modules\content\widgets\MetaTagsWidget;
             echo Html::img(\Yii::$app->params['frontUrl'] . $model->preview);
         } ?>
 
-        <?php echo $form->field($model, 'template_id')->dropDownList(\yii\helpers\ArrayHelper::map(MessageTemplate::find()->all(), 'id', 'name'), ['class' => 'form-control selectpicker']); ?>
+        <?php
+        echo $form
+            ->field($model, 'template_id')
+            ->dropDownList(\yii\helpers\ArrayHelper::map(MessageTemplate::find()->all(), 'id', 'name'), ['class' => 'form-control selectpicker', 'data-live-search' => true]); ?>
 
         <?= $form->field($model, 'file')->fileInput() ?>