Re: How shall I...?
Re: How shall I...?
- Subject: Re: How shall I...?
- From: Art Isbell <email@hidden>
- Date: Fri, 3 Jan 2003 12:03:11 -1000
On Friday, January 3, 2003, at 11:12 AM, Ricardo Strausz wrote:
Kedves Kolegak!
Whatever you say :-)
I am tring to figure out how shall i create and connect (inside
Interface Builder) the DisplayGroups of a 3-level relation > one-to-many:
A<-->>B<-->>C
I had try many different approches, but always ending with an unusable
project.
I think that the model most be fine becouse it works inside D2J as it
should.
I have never built a JavaClient app, so I don't know the issues
involved. But I have built OPENSTEP/EOF apps using IB and display
groups. I don't know what problems you're having, but maybe you need
to connect the display groups with master-peer rather than
master-detail associations (assuming this choice still exists :-) If I
recall, master-detail associations fetch through their parent display
group. I don't know whether this would work across 2 relationships.
Also, in order for detail objects to be fetched, the parent display
group must have a non-null selected object. So detail B objects are
fetched based on the selected A object. But then detail C objects are
fetched based on the selected B object. Are you certain that the first
B object is automatically selected after it's fetched so that the
appropriate C objects can be fetched? This may be something that can
be set programmatically but not in IB's Test Interface mode.
You could launch IB from a shell prompt with "-EOAdaptorDebugEnabled
YES" as a command-line argument. Then you should see the SQL being
generated in Test Interface mode. Maybe that would provide a clue to
solving your problem.
Also, as wonderful and amazing as Test Interface mode is, it doesn't
work in all cases. Have you actually tried running your JavaClient app?
Art
http://homepage.mac.com/aisbell/
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