/**
  * Create a simple associative array with
  * an ArrayCollection of SettingGroup.
  *
  * @param Doctrine\Common\Collections\ArrayCollection $settingGroup
  *
  * @return array
  */
 public static function toArray($settingGroups)
 {
     $data = [];
     foreach ($settingGroups as $group) {
         $tmpGroup = [];
         $tmpGroup['name'] = $group->getName();
         $tmpGroup['inMenu'] = $group->isInMenu();
         $tmpGroup['settings'] = [];
         foreach ($group->getSettings() as $setting) {
             $tmpGroup['settings'][] = SettingJsonSerializer::toArray($setting);
         }
         $data[] = $tmpGroup;
     }
     return $data;
 }