public function up()
 {
     $shop = \app\backend\models\BackendMenu::findOne(['name' => 'Shop']);
     if (!is_null($shop)) {
         $item = new \app\backend\models\BackendMenu();
         $item->attributes = ['parent_id' => $shop->id, 'name' => 'Categories groups', 'route' => 'backend/category-group/index', 'icon' => 'tag', 'sort_order' => 0, 'added_by_ext' => 'core', 'rbac_check' => 'category manage', 'css_class' => '', 'translation_category' => 'shop'];
         $item->save();
     }
 }
 public function up()
 {
     $slider_item = new \app\backend\models\BackendMenu();
     $slider_item->attributes = ['parent_id' => '1', 'name' => 'Sliders', 'route' => 'backend/slider/index', 'icon' => 'arrows-h', 'sort_order' => '10', 'added_by_ext' => 'core', 'rbac_check' => 'content manage', 'css_class' => '', 'translation_category' => 'app'];
     $slider_item->save();
 }
 public function up()
 {
     $item = new \app\backend\models\BackendMenu();
     $item->attributes = ['parent_id' => 1, 'name' => 'Rating groups', 'route' => 'backend/rating/index', 'icon' => 'star-half-o', 'sort_order' => 6, 'added_by_ext' => 'core', 'rbac_check' => 'review manage', 'css_class' => '', 'translation_category' => 'app'];
     $item->save();
 }