[jira] [Updated] (CAY-2851) Replace Existing OneToOne From New Object

["Nikita Timofeev (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CAY-2851?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Nikita Timofeev updated CAY-2851:
---------------------------------
    Fix Version/s: 4.2.1
                   5.0-M1

> Replace Existing OneToOne From New Object
> -----------------------------------------
>
>                 Key: CAY-2851
>                 URL: https://issues.apache.org/jira/browse/CAY-2851
>             Project: Cayenne
>          Issue Type: Bug
>          Components: Core Library
>    Affects Versions: 4.2, 5.0-M2
>            Reporter: Matt Watson
>            Priority: Major
>             Fix For: 4.2.1, 5.0-M1
>
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> We have a One to One (belongsTo on both sides) relationships between 2 Models (A & B), very similar to the Painting < - > PaintingInfo in the test environment.
> When we have an existing {{a1}} related to {{b1}} (and vice-versa b1 to a1), and we create a new b2. Then set {{{}b2.toA = a1{}}}. We find out that {{b1.toA}} is still related to {{a1}} instead of {{null}}
> The closest test that I found is in
> {code:java}
> CDOOneDep2OneIT.testReplace{code}
> but just need to set from the other side of the relationship instead.
> I can push up a breaking test soon. Not sure if you prefer it to be on {{master}} or {{{}STABLE-4.2{}}}.
> It seems that during {{b2.setToA(a1)}} the call to {{setToOneTarget("toA", a1, true)}} triggers a call to {{setReverseRelationship("toA", a1)}} , which triggers a call to {{{}setToOneTarget("toB", b2, false){}}}. In here it accesses the {{oldTarget}} which is {{{}b1{}}}. This is where I feel it should nullify {{b1.toA}} using {{{}unsetReverseRelationship("toB", b1){}}}. However, it does NOT because {{setReverse}} was passed in as {{{}false{}}}. Since it does not, at this point if you check the relationships:
> {{b2.toA == a1}} _GOOD_
> {{a1.toB == b2}} _GOOD_
> {{b1.toA == a1}} _BAD_



--
This message was sent by Atlassian Jira
(v8.20.10#820010)