public function doUserLike(User $user, Restaurant $restaurant)
 {
     $likes = $this->app['repository.likes']->findByUser($user->getId());
     foreach ($likes as $like) {
         if ($like->getRestaurant() == $restaurant->getId()) {
             return true;
         }
     }
     return false;
 }
 /**
  * Deletes the restaurant.
  *
  * @param Restaurant $restaurant
  *
  * @return boolean
  */
 public function delete($restaurant)
 {
     return $this->db->delete('restaurants', array('id' => $restaurant->getId()));
 }