public function select2($options = [])
{
$this->parts['{input}'] = Select2::widget(array_merge($options, ['model' => $this->model, 'attribute' => $this->attribute]));
return $this;
}
https://github.com/kartik-v/yii2-widget-select2
<?php
echo GridView::widget(['dataProvider' => $dataProvider, 'filterModel' => $searchModel, 'columns' => [['class' => 'yii\\grid\\SerialColumn'], 'titulo', ['attribute' => 'categoria_id', 'value' => 'categoria.categoria', 'format' => 'raw', 'filter' => Select2::widget(['model' => $searchModel, 'attribute' => 'categoria_id', 'data' => \yii\helpers\ArrayHelper::map(\app\models\Categoria::find()->all(), 'id', 'categoria'), 'options' => ['placeholder' => 'Seleccione...'], 'pluginOptions' => ['allowClear' => true]])], ['attribute' => 'created_by', 'value' => 'createdBy.name'], ['class' => 'yii\\grid\\ActionColumn']]]);
?>
---------------------------------------------------------------------------------------------------------------------------
public function rules()
{
return [
[['created_by', 'updated_by'], 'safe'],
];
}
...validate()...
$query->joinWith('createdBy');
->andFilterWhere(['like', 'user.name', $this->created_by])
