/**
  * Leave new comment
  *
  * @param $input
  * @return static
  */
 public function leaveComment($input)
 {
     $comment = Comment::leave($input['body'], $input['status_id']);
     User::findOrFail($input['user_id'])->comments()->save($comment);
     return $comment;
 }
 /**
  * Find user by id
  *
  * @param $id
  * @return mixed
  */
 public function findById($id)
 {
     return User::findOrFail($id);
 }