/**
  * Create a simple associative array with
  * an ArrayCollection of Group.
  *
  * @param Doctrine\Common\Collections\ArrayCollection $groups
  *
  * @return array
  */
 public function toArray($groups)
 {
     $data = [];
     $groupSerializer = new GroupJsonSerializer();
     foreach ($groups as $group) {
         $data[] = $groupSerializer->toArray($group);
     }
     return $data;
 }
 /**
  * Create a simple associative array with
  * an ArrayCollection of Group.
  *
  * @param Doctrine\Common\Collections\ArrayCollection $groups
  *
  * @return array
  */
 public static function toArray($groups)
 {
     $data = [];
     foreach ($groups as $group) {
         $data[] = GroupJsonSerializer::toArray($group);
     }
     return $data;
 }