public override object Execute(ParameterList parameters, FunctionContextContainer context)
{
SitemapScope SitemapScope;
if (parameters.TryGetParameter <SitemapScope>("SitemapScope", out SitemapScope) == false)
{
SitemapScope = SitemapScope.Current;
}
Guid pageId = Guid.Empty;
switch (SitemapScope)
{
case SitemapScope.Current:
pageId = PageRenderer.CurrentPageId;
break;
case SitemapScope.Parent:
case SitemapScope.Level1:
case SitemapScope.Level2:
case SitemapScope.Level3:
case SitemapScope.Level4:
IEnumerable <Guid> pageIds = PageStructureInfo.GetAssociatedPageIds(PageRenderer.CurrentPageId, SitemapScope);
pageId = pageIds.FirstOrDefault();
break;
default:
throw new NotImplementedException("Unhandled SitemapScope type: " + SitemapScope.ToString());
}
return(pageId);
}
/// <exclude />
public static IEnumerable<Guid> GetAssociatedPageIds(Guid pageId, SitemapScope associationScope)
{
switch (associationScope)
{
case SitemapScope.Current:
return new[] {pageId};
case SitemapScope.All:
return DataFacade.GetData<IPage>().Select(p => p.Id).ToList();
case SitemapScope.Descendants:
return GetDescendants(pageId);
case SitemapScope.DescendantsAndCurrent:
return GetDescendantsAndSelf(pageId);
case SitemapScope.Children:
return PageManager.GetChildrenIDs(pageId);
case SitemapScope.Siblings:
Guid parentId = PageManager.GetParentId(pageId);
return PageManager.GetChildrenIDs(parentId).Where(i => i != pageId);
case SitemapScope.SiblingsAndSelf:
parentId = PageManager.GetParentId(pageId);
return PageManager.GetChildrenIDs(parentId);
case SitemapScope.Ancestors:
return GetAncestors(pageId, false);
case SitemapScope.AncestorsAndCurrent:
return GetAncestors(pageId, true);
case SitemapScope.Parent:
parentId = PageManager.GetParentId(pageId);
return parentId != Guid.Empty ? new[] {parentId} : new Guid[0];
case SitemapScope.Level1:
case SitemapScope.Level2:
case SitemapScope.Level3:
case SitemapScope.Level4:
case SitemapScope.Level1AndDescendants:
case SitemapScope.Level2AndDescendants:
case SitemapScope.Level3AndDescendants:
case SitemapScope.Level4AndDescendants:
case SitemapScope.Level1AndSiblings:
case SitemapScope.Level2AndSiblings:
case SitemapScope.Level3AndSiblings:
case SitemapScope.Level4AndSiblings:
int level = int.Parse(associationScope.ToString().Substring(5, 1));
var ancestors = GetAncestors(pageId, true);
ancestors.Reverse();
bool andSiblings = associationScope.ToString().EndsWith("AndSiblings");
if (andSiblings)
{
if (ancestors.Count < level - 1)
{
return new Guid[0];
}
Guid parentPageId = level == 1 ? Guid.Empty : ancestors[level - 2];
return GetAssociatedPageIds(parentPageId, SitemapScope.Children);
}
if (ancestors.Count < level)
{
return new Guid[0];
}
Guid levelPageId = ancestors[level - 1];
bool andDescendants = associationScope.ToString().EndsWith("AndDescendants");
if (andDescendants)
{
return GetDescendantsAndSelf(levelPageId);
}
return new[] {levelPageId};
default:
throw new NotImplementedException("Unhandled SitemapScope type: " + associationScope);
}
}
