/**
  * Instantiates a group entity and sets its properties using db data.
  *
  * @param array $groupData
  *   The array of db data.
  *
  * @return \MusicBox\Entity\Like
  */
 protected function buildLike($groupData)
 {
     // Load the related artist and user.
     $artist = $this->artistRepository->find($groupData['artist_id']);
     $user = $this->userRepository->find($groupData['user_id']);
     $group = new Like();
     $group->setId($groupData['group_id']);
     $group->setArtist($artist);
     $group->setUser($user);
     $createdAt = new \DateTime('@' . $groupData['created_at']);
     $group->setCreatedAt($createdAt);
     return $group;
 }