protected override void LoadChildren()
{
if (_edgeType != null)
{
m_session.LoadFields(_edgeType);
foreach (var edge in _edgeType.GetEdges())
{
base.Children.Add(new EdgeViewModel(edge, this, m_session));
}
foreach (var et in _edgeType.GetPropertyTypes())
{
base.Children.Add(new PropertyTypeViewModel(et, this, m_session));
}
}
}
public void DeleteUserVertices()
{
using (SessionNoServer session = new SessionNoServer(systemDir, 5000, false, true))
{
session.BeginUpdate();
Graph g = Graph.Open(session); // it takes a while to open graph fresh from databases
VertexType userType = g.FindVertexType("User");
VertexType locationType = g.FindVertexType("Location");
EdgeType friendEdgeType = g.FindEdgeType("Friend");
EdgeType userLocationEdgeType = g.FindEdgeType("UserLocation");
for (int i = 1; i < numberOfUserVertices; i++)
{
userType.RemoveVertex(new Vertex(g, userType, i));
}
Assert.IsTrue(friendEdgeType.GetEdges().Count() == 0);
session.Commit();
Validate();
}
}
void Validate()
{
using (SessionNoServer session = new SessionNoServer(systemDir, 5000, false, true))
{
session.BeginRead();
Graph g = Graph.Open(session); // it takes a while to open graph fresh from databases
VertexType userType = g.FindVertexType("User");
VertexType locationType = g.FindVertexType("Location");
EdgeType friendEdgeType = g.FindEdgeType("Friend");
EdgeType userLocationEdgeType = g.FindEdgeType("UserLocation");
foreach (Edge e in friendEdgeType.GetEdges())
{
if (e.Head == e.Tail)
{
Console.WriteLine(e.Head + " is friend of itself");
}
}
session.Commit();
}
}