Inherited a project where a few entities had been implementing vertical inheritance. Part of the rework was moving from openbase to postrges, and doing some additional cleanup.
Anyway, after migrating all the data, and without changing the inheritance modeling at all, I was getting this error: The object with globalID _EOIntegralKeyGlobalID[User (java.lang.Integer)5926] could not be found in the database. This could be result of a referential integrity problem with the database. An empty fault could not be created because the object's class could not be determined (e.g. the GID is temporary or it is for an abstract entity). At first I thought I may have done something wrong when resetting the pk sequences in postgres after the migration, and given that we were using vertical inheritance, with four different tables, it was likely that may have been causing some issues. So I created a new single table, consolidated all the original four tables into the new table, and then changed the table of the base abstract entity to point to the new all in one table. Still got the same error. I'm still glad I did it though; I didn't see any possible reason for using vertical save for having to relax a few existing constraints that I could handle at the app layer. I am able to CRUD on all the existing EO's that are part of the old vertical design, after moving to the single table model. But there's one area that is failing, where the above exception is coming from. I've got: Invoices ->> Products Invoices -> Users (base abstract entity of the inheritance model) mandatory not null, and delete rule is nullify Products -> Invoice and we're blowing up when setting a product onto the invoice. Am I right in thinking that maybe I want to change the relationship from Invoices to Users to be Invoices -> Clients, and make it optional in the model? A potentially large wrinkle with that is that another of the inherited entities also has a relationship to Invoices, and Invoices to it, also pointing to the abstract User entity. Pointers or suggestions? Thanks. Bill _______________________________________________ Do not post admin requests to the list. They will be ignored. Webobjects-dev mailing list ([email protected]) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/webobjects-dev/archive%40mail-archive.com This email sent to [email protected]
