I'll check an old project of mine to see what mapping causes the error.
BTW I've found another issue (CAY-1386) related to reverse rels. Do we have
reverses for flattened rels?
2010/2/7 Andrus Adamchik <andru..bjectstyle.org>
>
> On Feb 7, 2010, at 5:36 PM, Andrey Razumovsky wrote:
>
> As far as i remember, the problem is if we have a mapping:
>> entities:
>> A
>> B extends A - mapped in same db table
>> C
>>
>> dbRel:
>> toA, cArray (from C to A and vice versa) - Is Mandatory
>>
>> objRel - toA, cArray (from C to A and vice versa)
>>
>> So, there's isn't any ObjRel from B to C and therefore Cayenne adds
>> runtime
>> relationship.
>> Problems come when we're setting relationship via C.setToA(..) and commit.
>> Cayenne thinks runtime rel from C to B is mandatory (after all, it's
>> mapped
>> to mandatory dbRel) and fails to commit.
>>
>
> Created a patch from this description against 3.0 branch:
>
>
> https://issues.apache.org/jira/secure/attachment/12435122/CAY-1009-Andreys-case.patch
>
> A == Sti2Inheritance
> B == Sti2InheritanceSub
> C == Sti2Related
>
> I still can't reproduce the failure, as there's no runtime relationship
> created between B and C, either with or without CAY-1009 commit.
>
> Andrus
>
-- Andrey
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