public IEnumerable <ActivityFeedTabModel> GetTabs(IPublishedContent currentPage)
        {
            yield return(GetMainFeedTab(currentPage));

            var allActivityTypes = _activityTypeProvider.All;

            foreach (var content in _contentProvider.GetRelatedPages())
            {
                var tabType      = GetFeedTabType(content);
                var activityType = allActivityTypes.SingleOrDefault(a => a.ToInt() == tabType.ToInt());

                if (activityType == null)
                {
                    continue;
                }

                var settings = _centralFeedService.GetSettings(tabType);
                yield return(new ActivityFeedTabModel
                {
                    Content = content,
                    Type = tabType,
                    HasSubscribersFilter = settings.HasSubscribersFilter,
                    HasPinnedFilter = settings.HasPinnedFilter,
                    IsActive = content.IsAncestorOrSelf(currentPage),
                    Links = _feedLinkService.GetCreateLinks(tabType)
                });
            }
        }
 private bool IsSubPage(IPublishedContent page) =>
 _contentProvider.GetRelatedPages().Any(c => c.IsAncestorOrSelf(page));