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From "Arseni Bulatski (JIRA)" <>
Subject [jira] [Created] (CAY-2488) Problem with not to PK relationships
Date Tue, 16 Oct 2018 16:54:00 GMT
Arseni Bulatski created CAY-2488:

             Summary: Problem with not to PK relationships
                 Key: CAY-2488
             Project: Cayenne
          Issue Type: Bug
          Components: Core Library
            Reporter: Arseni Bulatski
             Fix For: 4.2.M1

Problem with not to PK relationships was found.
 * create relationship with join not to PK (target or source attribute isn't PK) in modeler
 * create entities
 * create relationship between entities
 * commit changes

In database objects will be created, but relationship won't be created. So you can't be able
to get joined objects.

This happens because in you can't create arcDiff.

Look DataDomainDBDiffBuilder

if (!relationship.isToMany() && relationship.isToPK()) {
 doArcCreated(targetNodeId, arcId);

In current logic you can get only PK attribute value from ObjectId.

First step is to add validation of this case to prevent user to create this kind of relationship.

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