public function createComment($cmt)
{
$comment = $this->comment->newInstance();
$comment->item_id = $cmt->item_id;
$comment->user_id = $cmt->user_id;
$comment->body = $cmt->body;
$comment->save();
$comment->user->username = $cmt->username;
$comment->user->email = $cmt->email;
return $comment;
}