Hi,

I am not sure if this is a bug or a feature

I am using SelfServicing and llblgen 2.6 (latest version).

I'm using some code you can find in the forums whene you search for Deep Copy (i.e. the CloneHelper). Somewhere in this code a graph is built using the ProduceTopologyOrderedList from ObjectGraphUtils. The graph that is built only contains the root entity and no children.

Here is the code

        public static IEntity CloneEntity(IEntity Entity, bool ResetAsNew)
        {
            IEntity newEntity;
            newEntity = (IEntity)CloneObject(Entity);
            ObjectGraphUtils ogu = new ObjectGraphUtils();
            List<IEntity> flatList = ogu.ProduceTopologyOrderedList(newEntity);

            if (ResetAsNew)
                for (int f = 0; f < flatList.Count; f++)
                    ResetEntityAsNew(flatList[f]);

            return newEntity;
        }

When I use a breakpoint at the line that declare the ObjectGraphUtils variable ogu and browse the newEntity, the graph contains both the root entity and the children

Could this have something to do with lazy loading? Is there a way to force the ProduceTopologyOrderedList to present the complete graph?

Best regards,

Jan

AFAIK, the ProduceTopologyOrderedList() should return the complete graph.

Which LLBLGenPro runtime library version (build no.) are you using?

JayBee wrote:

Hi,

I am not sure if this is a bug or a feature

I am using SelfServicing and llblgen 2.6 (latest version).

I'm using some code you can find in the forums whene you search for Deep Copy (i.e. the CloneHelper). Somewhere in this code a graph is built using the ProduceTopologyOrderedList from ObjectGraphUtils. The graph that is built only contains the root entity and no children.

Here is the code

        public static IEntity CloneEntity(IEntity Entity, bool ResetAsNew)
        {
            IEntity newEntity;
            newEntity = (IEntity)CloneObject(Entity);
            ObjectGraphUtils ogu = new ObjectGraphUtils();
            List<IEntity> flatList = ogu.ProduceTopologyOrderedList(newEntity);

            if (ResetAsNew)
                for (int f = 0; f < flatList.Count; f++)
                    ResetEntityAsNew(flatList[f]);

            return newEntity;
        }

When I use a breakpoint at the line that declare the ObjectGraphUtils variable ogu and browse the newEntity, the graph contains both the root entity and the children

Could this have something to do with lazy loading? Is there a way to force the ProduceTopologyOrderedList to present the complete graph?

The method produces a sorted list (topologically sorted, so it sorts the graph in dependency order) of entities currently in memory. When you browse to the entity in the debugger and step to a property which is a related entity, the debugger simply calls the 'get' of the property which triggers lazy loading indeed.

The method works as expected (otherwise the save mechanism in the runtime wouldn't work )

Oké Frans.

As a consequence this method cannot be used to copy an entity and the related entities (grandparent - parent - children - etc) unless you access all related entities somewhere in the code.

Is there another method in LLBLGen to achieve this?

Best regards,

Jan

JayBee wrote:

As a consequence this method cannot be used to copy an entity and the related entities (grandparent - parent - children - etc) unless you access all related entities somewhere in the code.

If the related entities are already fetched, the method will peak all the in-memory related ones. So, you can prefetch all the related entities you want before call the copy routine.