You are viewing a plain text version of this content. The canonical link for it is here.

Posted to dev@ofbiz.apache.org by Christopher Snow <sn...@coralms.com> on 2007/03/13 22:01:44 UTC

entity relation bug or misunderstanding?

If I have the following entities:

<entity entity-name="EntityOne" ...>
   <field name="entityOneId" type="id-ne"/>
   <field name="entityTwoId" type="id-ne"/>
   <prim-key field="entityOneId"/>
   <relation type="one" fk-name="ENT_TYP" rel-entity-name="EntityTwo">
      <key-map field-name="entityTwoId"/>
   </relation>
</entity>

<entity entity-name="EntityTwo" ..."> 
   <field name="entityTwoId" type="id-ne"/>
   <prim-key field="entityTwoId"/>
</entity>

I thought the relation type "one" would only allow me to have a value
for EntityOne.entityTwoId of either null or a value that exists in
EntityTwo.entityTwoId.  However:

bsh % e2 = delegator.findAll("EntityTwo");
bsh % print(e2);
[]
bsh % e1 = delegator.create("EntityOne", UtilMisc.toMap("entityOneId",
"1", "entityTwoId", "THIS_KEY_DOESNT_EXIST")); // this should err??

bsh % print(e1);
[GenericEntity:EntityOne][entityOneId,1(java.lang.String)] ...
[THIS_KEY_DOESNT_EXIST(java.lang.String)] ...

Any ideas???

Thanks in advance ...

Re: entity relation bug or misunderstanding?

Posted by "David E. Jones" <jo...@hotwaxmedia.com>.

Sounds like the foreign key didn't make it into the database. Look at  
your database meta data (or have the entity engine do it) to make sure.

The entity engine does not check foreign keys, it lets the database  
do that.

-David


On Mar 13, 2007, at 3:01 PM, Christopher Snow wrote:

> If I have the following entities:
>
> <entity entity-name="EntityOne" ...>
>    <field name="entityOneId" type="id-ne"/>
>    <field name="entityTwoId" type="id-ne"/>
>    <prim-key field="entityOneId"/>
>    <relation type="one" fk-name="ENT_TYP" rel-entity-name="EntityTwo">
>       <key-map field-name="entityTwoId"/>
>    </relation>
> </entity>
>
> <entity entity-name="EntityTwo" ...">
>    <field name="entityTwoId" type="id-ne"/>
>    <prim-key field="entityTwoId"/>
> </entity>
>
> I thought the relation type "one" would only allow me to have a value
> for EntityOne.entityTwoId of either null or a value that exists in
> EntityTwo.entityTwoId.  However:
>
> bsh % e2 = delegator.findAll("EntityTwo");
> bsh % print(e2);
> []
> bsh % e1 = delegator.create("EntityOne", UtilMisc.toMap("entityOneId",
> "1", "entityTwoId", "THIS_KEY_DOESNT_EXIST")); // this should err??
>
> bsh % print(e1);
> [GenericEntity:EntityOne][entityOneId,1(java.lang.String)] ...
> [THIS_KEY_DOESNT_EXIST(java.lang.String)] ...
>
> Any ideas???
>
> Thanks in advance ...
>