On 12-jul-2007, at 21:58, Robert Walker wrote:
Johan,
Is this truly a one-to-one relationship as modeled? I mean are the
tables joined PK <----> PK? Or is this modeled as a one-to-many
with the many-side limited to one related object in the array?
it is like:
a-pk<--b-fk
a-fk --> b-pk
So the foreign key of table a points to the primary key of b and vice
versa, so one can find a via b and find b via a.
If this is a true PK to PK one-to-one relationship, which way have
you set "Propagates Primary Key?" If it's a true one-to-one it's
that property of the model that is responsible to setting the
destination PK.
I think we're not talking about the same type of relationships. Bot
tables exist, they can not have one of the primary keys propagated,
as it is not know beforehand which one of the records will relate to
which record in the other table. These tables are created somewhere
else, not in the WebObjects. One is an import from a csv table, the
other from a random generator.
If it's the latter case, and D2W is not properly calling
addObjectToBothSidesOfRelationshipWithKey, then it wouldn't be
doing that for any relationships in the system. To be honest I'm
not sure if D2W actually does, or does not, use that method to
manage it's relationships.
Thinking about how D2W uses the browser style input control to set
an entire array of objects on a to-many relationship, I have my
doubts that it is using addObjectToBothSidesOfRelationshipWithKey.
It may instead just simply use the accessors to set the array.
On Jul 12, 2007, at 2:16 PM, Johan Henselmans wrote:
I am updating a old D2W app to the latest and greatest Wonder/
Eclipse combo, and after adding some records to a database, I
noticed that the table on the other side of the relationship did
not get an update in it's foreign_id key field (it's a one-to-one
relationship with with relationships defined on both sides). I
seem to remember that normally, in D2W both sides would get updated.
Or is that some romantic idea I had about the D2W taking care of
that kind of mundane activities?
If D2W does not take care of it, how should I then take care of it?
Regards,
Johan Henselmans
http://www.netsense.nl
Tel: +31-20-6267538
Fax: +31-20-6273852
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Regards,
Johan Henselmans
http://www.netsense.nl
Tel: +31-20-6267538
Fax: +31-20-6273852
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