public static Triple ToTriple(IConceptManager conceptManager, Item item, ItemLink itemLink)
{
var g = new Graph();
g.NamespaceMap.AddNamespace("sitecore", new Uri("sitecore:"));
//g.NamespaceMap.AddNamespace("http", new Uri("http:"));
IUriNode sub = g.CreateUriNode(ItemToUri(item));
IUriNode obj;
if (itemLink.GetTargetItem() == null)
{
//Broken link creation
obj = g.CreateUriNode(BrokenLinkUri);
}
else
{
obj = g.CreateUriNode(ItemToUri(itemLink.GetTargetItem()));
}
IUriNode predicate = conceptManager.GetPredicate(sub, obj);
//Add Source Field Id to predicate
IUriNode predicateWithFieldId = g.CreateUriNode(new Uri(predicate.Uri + "#" + itemLink.SourceFieldID));
return(new Triple(sub, Tools.CopyNode(predicateWithFieldId, g), obj));
}
public override void Relink(ItemLink link, Item newLink)
{
Item targetItem = link.GetTargetItem();
if (targetItem == null)
{
return;
}
ID templateId = targetItem.TemplateID;
if (templateId != newLink.TemplateID)
{
throw new Exception(Translate.Text("Cannot relink to an item with a different template."));
}
string elementType = GetElementType(templateId);
if (elementType == null)
{
return;
}
XElement xelement = Find(elementType, targetItem.ID, targetItem.Name);
if (xelement != null)
{
xelement.SetAttributeValue("id", newLink.ID.ToString());
xelement.SetAttributeValue((elementType == "campaign" ? "title" : "name"), newLink.Name);
}
AcceptChanges();
}
public void RemoveLinksForItem(Item item, ItemLink link)
{
var parser = new SparqlQueryParser();
var subjectUri = SitecoreTripleHelper.ItemToUri(item);
var objectUri = SitecoreTripleHelper.ItemToUri(link.GetTargetItem());
var query = SitecoreTripleHelper.StringToSparqlQuery(String.Format(TriplesBySubjectObjectFormat, subjectUri, objectUri));
var triplesToDelete = TripleQuery(query);
DeleteTriples(triplesToDelete);
}
public static void RemoveLinksForItem(Item item, ItemLink link)
{
var g = LinkedDataManager.ReadGraph();
var items = g.GetTriplesWithSubjectObject(
g.CreateUriNode(LinkedDataManager.ItemToUri(item)),
g.CreateLiteralNode(LinkedDataManager.ItemToUri(link.GetTargetItem())));
if (items != null && items.Any())
{
g.Retract(items.First());
WriteGraph(g);
}
}
public static Triple ToTriple(IGraph g, Item item, ItemLink itemLink)
{
IUriNode sub = g.CreateUriNode(ItemToUri(item));
IConceptManager conceptManager = new StubConceptManager();
var matchingConcepts = conceptManager.GetMatchingConcepts(item, itemLink.GetTargetItem());
IUriNode predicate;
if (matchingConcepts != null && matchingConcepts.Any())
{
predicate = g.CreateUriNode(matchingConcepts.First().Predicate);
}
else
{
predicate = g.CreateUriNode(UriFactory.Create("http://example.org/says"));
}
ILiteralNode obj = g.CreateLiteralNode(ItemToUri(itemLink.GetTargetItem()));
return(new Triple(sub, predicate, obj));
}
public override void UpdateLink(ItemLink itemLink)
{
Item targetItem = itemLink.GetTargetItem();
if (targetItem == null || !(this.TargetID == targetItem.ID))
{
return;
}
if (!this.IsInternal)
{
return;
}
this.Url = targetItem.Paths.ContentPath;
}
public override void RemoveLink(ItemLink itemLink)
{
Item targetItem = itemLink.GetTargetItem();
if (targetItem == null)
{
return;
}
string elementType = GetElementType(targetItem.TemplateID);
if (elementType == null)
{
return;
}
XElement xelement = Find(elementType, targetItem.ID, targetItem.Name);
if (xelement == null)
{
return;
}
xelement.Remove();
AcceptChanges();
}
public void Update(Item item, ItemLink link)
{
if (FilterItem(item))
{
return;
}
var targetItem = link.GetTargetItem();
if (targetItem != null)
{
if (FilterItem(targetItem))
{
return;
}
var sourceNode = _graph.ReadNode(ItemHelper.ItemToUri(item));
if (sourceNode == null)
{
sourceNode = _graph.CreateNode(new SitecoreNode() { Uri = ItemHelper.ItemToUri(item), Name = item.Name });
}
var targetNode = _graph.ReadNode(ItemHelper.ItemToUri(link.GetTargetItem()));
if (targetNode == null)
{
targetNode = _graph.CreateNode(new SitecoreNode() { Uri = ItemHelper.ItemToUri(targetItem), Name = targetItem.Name });
}
var relationship = _relationshipManager.GetRelationship(sourceNode.Uri, targetNode.Uri);
_graph.CreateRelationship(sourceNode, relationship, targetNode);
}
}
