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Re: difficulties with cross-model relationship
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Re: difficulties with cross-model relationship


  • Subject: Re: difficulties with cross-model relationship
  • From: Chuck Hill <email@hidden>
  • Date: Fri, 20 Mar 2009 07:31:17 -0700


On Mar 19, 2009, at 11:38 PM, TW wrote:

All:

I have an entity called "Paper" in a new model A that I would like to relate to an entity "Employee" in an established model B. Each of them are in their own framework project but both models use the same database. I was hoping to make this a many to many and flatten it. I've tried many things tonight to get this to work but apparently I'm doing all the wrong things.

Apple's documentation seems to indicate that I should be able to resolve type references to any models included in the model group. I've added B eomodel to the model group section in my EOGenerate file.

I've tried adding B.framework the build path of A.framework. This seems to do the right things and add the join table, etc., but then model B can't resolve type references to the entity in model A. I'm assuming I'm just really confused about how this should work but I've reached my limit for banging my head against it.

I'd be really grateful if anyone doing something similar could share how they may have gotten this working.


It sounds like you have a circular dependancy: Framework A depends on Framework B _and_ Framework B depends on Framework A. That just won't work in Java. I think you can only do this if the relationships are only in one direction or if both models are in the same project.


Chuck


-- Chuck Hill Senior Consultant / VP Development

Practical WebObjects - for developers who want to increase their overall knowledge of WebObjects or who are trying to solve specific problems.
http://www.global-village.net/products/practical_webobjects







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