Re: [Zope] referential integrity

Lukas Maag writes:

In other words, is it possible to store only a reference of an object in a attribute of another object. That's easy!

You use a string values property and store the path to the referenced object.

Additionally, the zope database wouldn't allow to delete the referenced object while it's still referenced (in a attribute of another object). Zope does not support that directly. But you can use a ZCatalog to record the relation. I case, you are deleting something, you ask the catalog whether the object is still needed and reject deletion when it is still in use.

Dieter