I'm having difficulty to let the laravel query order by a date field of a nested query. This is what I came up with

$twitterStatuses = ProjectTwitterStatus::with(array('twitterStatus' => function($query) {
			$query->select('id','datetime','text','twitter_user_id','raw_created_at','datetime')
				  ->with(array('twitterUser' => function($query) {
						$query->select('id','id_str','screen_name','profile_image_url','screen_name','name','description');
				  }))
				  ->with(array('twitterStatusTag' => function($query) {
						$query->with('tag');
				  }))
				  ->with(array('twitterUserTag' => function($query) {
						$query->with('tag');
				  }));
			}))
		->orderBy('datetime')
		->paginate(15);

ProjectTwitterStatus holds only a projectId and the twitterStatusId, the last one identifies the tweet in twitterStatus. The result needs to be ordered by the datetime of the tweet, and that is availible in the twitterStatus model. The above depicts what I thought it shoud be, but that did not work, any thoughts?