BannerImageController.php

class BannerImageController extends Controller
{
    public function actions()
    {

        return ArrayHelper::merge(parent::actions(), [
            'link' => [
                'class' => EditableColumnAction::className(),
                'modelClass' => CexBannerImg::className(),
                'outputValue' => function ($model, $attribute, $key, $index) {
                    return $model->$attribute;
                },
                'outputMessage' => function($model, $attribute, $key, $index) {
                    return '';
                },
            ]
        ]);
    }

    public function actionOther()
    {
        return 'other';
    }
}