/**
  * {@inheritdoc}
  */
 public function getUserAchievement()
 {
     if (is_null($this->userAchievement)) {
         $className = $this->repository->getClassName();
         $this->userAchievement = new $className();
         $this->userAchievement->setAchievement($this->getOptions()->getId());
         $this->userAchievement->setUser($this->user);
         $userAchievement = $this->repository->getAchievement($this->getOptions()->getId(), $this->user);
         if (!is_null($userAchievement)) {
             $this->userAchievement = $userAchievement;
             $this->isComplete = !is_null($userAchievement->getCompleteAt()) ? true : false;
         }
     }
     return $this->userAchievement;
 }