RE: [Modelj-user] Perform_Save_Existing

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Hi Eric,

Well, the software does in fact generate the performSaveExisting method for 
1-N relationships, however the web GUI does not implement that feature yet.

Tom

>From: Eric Dunn <ed...@me...>
>To: "'Tom Tessier '" <tom...@ho...>
>Subject: RE: [Modelj-user] Perform_Save_Existing
>Date: Mon, 26 May 2003 23:11:34 -0700
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>Hi Tom,
>        Thanks for the quick reply. I am still confused though.
>
>I made a new modelj config file that did define 1-N relationships. It did 
>have performSaveExisting() in any of
>the source generated.
>
>On the other hand, in the original sample.xml, it has role-user defined as 
>M-N. This did generate the
>performSaveExisting() method, and in the comment it said  "saves an User to 
>another bean in a many-to-many
>relationship".
>
>Did you make a typo, or was it supposed to generate this for only M-N, and 
>not 1-N? Logically, you would want
>this for 1-N (I know I do).
>
>Here is the relationship section of my modelj config file. I must be doing 
>something wrong in here=).
>
>
>Thanks,
>Eric
>
><!-- %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -->
>   <relationship>
>     <parent-bean-name>User</parent-bean-name>
>     <parent-multiplicity>One</parent-multiplicity>
>     <child-bean-name>UserInfo</child-bean-name>
>     <child-multiplicity>One</child-multiplicity>
>     <navigation>bidirectional</navigation>
>   </relationship>
>   <relationship>
>     <parent-bean-name>User</parent-bean-name>
>     <parent-multiplicity>One</parent-multiplicity>
>     <child-bean-name>Checkout</child-bean-name>
>     <child-multiplicity>Many</child-multiplicity>
>     <navigation>bidirectional</navigation>
>   </relationship>
>   <relationship>
>     <parent-bean-name>User</parent-bean-name>
>     <parent-multiplicity>One</parent-multiplicity>
>     <child-bean-name>Alert</child-bean-name>
>     <child-multiplicity>Many</child-multiplicity>
>     <navigation>bidirectional</navigation>
>   </relationship>
>   <!-- %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -->
>   <relationship>
>     <parent-bean-name>Alert</parent-bean-name>
>     <parent-multiplicity>One</parent-multiplicity>
>     <child-bean-name>Checkout</child-bean-name>
>     <child-multiplicity>One</child-multiplicity>
>     <navigation>bidirectional</navigation>
>   </relationship>
>   <!-- %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -->
>   <relationship>
>     <parent-bean-name>Box</parent-bean-name>
>     <parent-multiplicity>One</parent-multiplicity>
>     <child-bean-name>Checkout</child-bean-name>
>     <child-multiplicity>Many</child-multiplicity>
>     <navigation>bidirectional</navigation>
>   </relationship>
>   <!-- %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -->
>
>
>
>
>
>
>-----Original Message-----
>From: Tom Tessier
>To: mod...@li...
>Sent: 5/26/2003 9:40 PM
>Subject: Re: [Modelj-user] Perform_Save_Existing
>
>Hi Eric,
>
>Actually, performSaveExisting is only called when you associate an
>existing
>object to another that contains it in a one-to-many relationship. So far
>
>example, when you have Role-Users one-to-many relationship, and
>associate an
>existing User to an existing Role, the performSaveExisting method of
>Role
>will be called. Currently, both objects in one-to-one relationships are
>saved simulatenously to the database, regardlessly of whether one is
>blank
>or not. Any suggestions on why this shouldn't be so?
>
>Tom
>
>
> >From: Eric Dunn <ed...@me...>
> >To: "'mod...@li...'"
> ><mod...@li...>
> >Subject: [Modelj-user] Perform_Save_Existing
> >Date: Mon, 26 May 2003 21:11:08 -0700
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> >
> >Hi guys,
> >       First I'd like to say I like your product's design and
>appreciate
> >its simplicity, and use of good design
> >patterns.
> >
> >       My problem is this, I noticed in your code in your struts action
>
> >classes, I have generated performSave
> >methods. If this entity 'A' is involved in a relationship with 'B', the
>
> >generated code will always create a
> >new 'B' row in the database, regardless if one exists or not.
> >
> >       Now I took a look at your guys BaseAction class and saw the
>contant
> >for "PERFORM_SAVE_EXISTING". This is
> >actually exactly what I want, but for some reason either,
> >
> >1) I have missed some flag in the sample.xml, or
> >2) your code does not generate this method.
> >
> >How do I get this method to be generated? If it does not support this
> >functionality I suppose I have to write
> >it myself =).
> >
> >Thanks so much,
> >Eric Dunn
> >
> >
> >
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