Re: Self Reference

From: Eric Schneider (eri..entralparksoftware.com)
Date: Mon Jun 28 2004 - 09:29:54 EDT

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    Juergen,

    I think this is a bug in the modeler with the version you are using.
    Are you using the latest milestone build?

    I noticed this a while back when trying to create a relationship from
    an entity to itself. The checkbox to update the reverse relationship
    was disabled.

    Long story short, what you are trying to do is completely acceptable.
    FYI, if you can't upgrade for some reason, you can still update this
    reverse relationship by hand.

    Cheers,
    eric

    On Jun 28, 2004, at 6:55 AM, <jsaa..eb.de> wrote:

    > Hi,
    >
    > I have a problem:
    >
    > In our project we use self-referencing for storing orders and the
    > dependend suborders in the same table. With this organization it is
    > possible to create an order-tree of dependend orders.
    >
    > If you place an a self reference in the cayenne modeller there is no
    > possibilty to set the reverse relation, and without reverse relation,
    > cayenne doesn't work right now.
    >
    > I know that this mechanism is good for having no endless loops when
    > populating a data object.
    >
    > So what can I do. The database structure is given, because I'm working
    > on an existing database coming from our base product. So there can be
    > made no changes.
    >
    > Juergen
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