protected override void NodeUpdateChange(EntityChangeNodeUpdate item)
{
IEnumerable <EntityChangeDescriptor> temp = ChangeLog.Where(p => p.Entity == item.Entity).ToList();
if (!temp.Any() && item.Entity.EntityId == null)
{
throw new InvalidOperationException("Unable to locate entity. It must be tracked or have an EntityId.");
}
if (temp.Any(p => p is EntityChangeNodeDeletion))
{
throw new InvalidOperationException("Unable to update an entity scheduled for deletion");
}
if (temp.Any(p => p is EntityChangeNodeCreation))
{
return;
}
if (temp.Any(p => p.Inverse != null && p.Inverse.Equals(item)))
{
ChangeLog.Remove(item);
}
else
{
if (temp.Any(p => (p as EntityChangeNodeUpdate)?.Property == item.Property))
{
ChangeLog.RemoveAll(p => temp.Contains(p) && (p as EntityChangeNodeUpdate)?.Property == item.Property);
}
ChangeLog.Add(item);
}
}
protected abstract void NodeUpdateChange(EntityChangeNodeUpdate item);