private IEnumerable <Guid> InternalGetBaseTemplates(IBaseTemplates item, ISitecoreService service, HashSet <Guid> visitedSet, int depth, bool ignoreTemplate = false)
{
if (item == null || depth <= 0)
{
return(DefaultBaseTemplateArray);
}
// Check direct 'template' field, then base-templates, before finally recursing
var baseTemplates = new[] { item.Template }
.Concat((item.TemplateBaseTemplates ?? item.BaseTemplates) ?? Enumerable.Empty <Guid>())
.Where(id => !visitedSet.Contains(id))
.ToArray();
foreach (var id in baseTemplates)
{
// prevent traversal of cycles
visitedSet.Add(id);
}
// Breadth first search (recursive)
return(baseTemplates.Concat(baseTemplates.SelectMany(guid => InternalGetBaseTemplates(service.GetItem <IBaseTemplates>(guid), service, visitedSet, depth - 1))));
}
internal IEnumerable <Guid> GetBaseTemplates(IBaseTemplates item, ISitecoreService service, int depth = DefaultDepth, bool ignoreTemplate = false)
{
return(InternalGetBaseTemplates(item, service, new HashSet <Guid>(), depth, ignoreTemplate).Concat(new[] { new Guid(DefaultFallbackTemplateId) }));
}
