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From Andrus Adamchik <>
Subject Re: Many-to-many bug?
Date Mon, 07 Apr 2008 19:52:34 GMT
I'd say we should handle this better... Please file an improvement  
request. I think this can be fixed with reasonable effort.


On Apr 7, 2008, at 10:04 PM, Scott Anderson wrote:

> Hi all,
> I've got a many-to-many relationship. For one object, I'm trying to
> clear all of the entries in the relational table, and then re-add them
> BEFORE doing a commit. If I do this, Cayenne tries to do an INSERT and
> then a DELETE, but this fails since the relational table has both  
> fields
> as PKs. My application must handle the condition where no action is
> actually required on the database end, but it doesn't seem like the
> application logic should be responsible for database quirks.
> Is there a simple way to solve this? My temporary solution is to do a
> commit after removing the relationships and before re-adding them.
> Thanks,
> Scott

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