public function attributes()
{
// add related fields to searchable attributes
return array_merge(parent::attributes(), ['mainTrashPlaces.trash_place_id', 'mainTrashMen.trash_man_id', 'mainTrashRecycles.trash_recycle_id', 'mainTrashRelations.trash_relation_id', 'mainRubberItems.rubber_item_id', 'filter_summer_1', 'filter_summer_2', 'filter_summer_3', 'filter_summer_4', 'filter_winter_1', 'filter_winter_2', 'filter_winter_3', 'filter_winter_4', 'filter_trash_out', 'filter_trash_count']);
}
