public ActionResult Promotion(int page = 0)
        {
            var groupId = _photoEngine.GetPromotedGroupId();
            var group   = _photoEngine.GetGroup(groupId, page);

            ViewData["groupName"]         = group.GroupName;
            ViewData[DataKeys.BreadCrumb] = "Today's group: " + ViewData["groupName"];

            return(PagingView(group));
        }
        public ActionResult Group(string id, int page = 0)
        {
            var domainGroup = _photoEngine.GetGroup(id, page);

            ViewData["groupName"]         = domainGroup.GroupName;
            ViewData[DataKeys.BreadCrumb] = ViewData["groupName"] + " group";

            return(PagingView(domainGroup));
        }