/**
  * @param  string|null $position
  * @return Widget[]
  */
 protected function getWidgets($position)
 {
     static $widgets, $positions = [];
     if (null === $widgets) {
         $widgets = Widget::where(['status' => 1])->get();
     }
     if (!($pos = $this->positions->get($position))) {
         return [];
     }
     if (!isset($positions[$position])) {
         $positions[$position] = [];
         foreach ($pos['assigned'] as $id) {
             if (!isset($widgets[$id]) or !($widget = $widgets[$id]) or !$widget->hasAccess(App::user()) or $nodes = $widget->nodes and !in_array(App::node()->id, $nodes) or !($type = App::widget($widget->type))) {
                 continue;
             }
             $result = $type->render($widget);
             $widget->set('result', $result);
             $positions[$position][] = $widget;
         }
     }
     return $positions[$position];
 }