public function getGrouping() { return $this->hasOne(SettingGroup::className(), ['name' => 'group']); }
public function actions() { return ['sort' => ['class' => SortableGridAction::className(), 'modelName' => Settings::className()], 'sort-group' => ['class' => SortableGridAction::className(), 'modelName' => SettingGroup::className()]]; }