Matt Watson created CAY-2256:
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Summary: Cannot Save/Insert an Object With null Flattened
(complex) toOne Relationship
Key: CAY-2256
URL: https://issues.apache.org/jira/browse/CAY-2256
Project: Cayenne
Issue Type: Bug
Components: Core Library
Affects Versions: 4.0.M4
Reporter: Matt Watson
Attachments: breaking-test.patch
When using a Flattened complex join for a toOne Relationship... if you do not
set the relationship the {{validateForSave}} on {{CayenneDataObject}}
incorrectly attaches a {{ValidationFailure}} saying that the relationship is
required.
Prior to M4 this worked correctly, but the commit fixing CAY-2146 introduced
this issue. More directly the line of code holding the IF statement below was
updated to check the db.Rels.size().
{code:title= CayenneDataObject.java|borderStyle=solid}
if (dbRels.size() == 1 && relationship.isSourceIndependentFromTargetChange()) {
continue;
}
{code}
While putting this code back makes the test for this issue pass, it obviously
makes the test for CAY-2146 FAIL, so I'm not suggesting to put it back, but
just pointing it out in case it helps better understand this issue.
(see attached breaking-test.patch)
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