Yeah ... fine
I searched for it on the relation-options
Thanx
cayenne-use..bjectstyle.org schrieb am 11.03.05 14:59:15:
>
> =?iso-8859-1?Q? J=FCrgen=20Saar ?= <jsaa..eb.de> wrote:
> > Hi,
> >
> > I have some Entities that have optional informations attached via a 1:1
> relation.
> > If I insert such an entity, and for the actual object there is no
> > such additional information, the validation fails
> > with the error-message "relAddtional is required"
> >
> > Is there a way to configure a 1:1 relation as optional (like an outer
> join)
>
> Change "mandatory" to false for your dbAttribute in the Cayenne modeler.
>
> Ie, assuming your object.relAddtional() relationship is based on the value
> of the OBJECT.REL_ADDITIONAL field, go to OBJECT (not object) and select
> attribute tab.
>
> Alternately, you can go in and just edit the DataMap.xml file and change (or
> remove) the value of mandatory directly.
>
> For example, here's what it looks like for creditCard() to be optional on my
> PaymentMethod object. Note that since there is no "isMandatory" attribute
> on PAYMENT_METHOD.CREDIT_CARD_ID, it defaults to false.
>
> <db-relationship name="creditCard" source="PAYMENT_METHOD"
> target="CREDIT_CARD" toMany="false">
> <db-attribute-pair source="CREDIT_CARD_ID" target="CREDIT_CARD_ID"/>
> </db-relationship>
>
> <db-entity name="PAYMENT_METHOD">
> <db-attribute name="ACCOUNT_NUMBER" type="INTEGER" isMandatory="true"
> length="8"/>
> <db-attribute name="CREDIT_CARD_ID" type="INTEGER" length="8"/>
>
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