public static function get_related_videos_count_for_external_video_data($external_video_library_id, $video_data, $external_video_provider_id = NULL)
 {
     /*
      * TODO: Change these to functions that actually count the 
      * number of related videos (ie. tag1 OR tag2 OR tag3)
      * Right now, they are looking for videos that have every tag
      */
     $tag_ids = array();
     foreach ($video_data['tags'] as $tag) {
         $tag_ids[] = $tag['id'];
     }
     if (isset($external_video_provider_id)) {
         return VideoLibrary_DatabaseHelper::get_related_external_videos_count_for_tag_ids($external_video_library_id, $tag_ids, $external_video_provider_id, $video_data['id']);
     } else {
         return VideoLibrary_DatabaseHelper::get_related_external_videos_count_for_tag_ids($external_video_library_id, $tag_ids, NULL, $video_data['id']);
     }
 }