def render_POST(self, request):
edgeclasses = [HistoryEdgeSimpleProperty, HistoryEdgeAddChild, HistoryEdgeRemoveChild, HistoryEdgeNull]
edgeclassdict = dict()
for cls in edgeclasses:
edgeclassdict[cls.__name__] = cls
edges = JSONDecoder().decode(request.args["edges"][0])
edges = [edgeclassdict[edge["classname"]](edge["edgeid"], edge["startnodes"], edge["endnode"], edge["propertyownerid"],
edge["propertyname"], edge["propertyvalue"], edge["propertytype"], edge["documentid"], edge["documentclassname"]) for edge in edges]
edges.extend(DocumentCollection.documentcollection.AddEdges(edges))
DocumentCollectionHelper.SaveEdges(DocumentCollection.documentcollection, 'drawing.history.db', edges)
return "OK"
