Re: Many to many and Direct2Web throwing exceptions on save
Re: Many to many and Direct2Web throwing exceptions on save
- Subject: Re: Many to many and Direct2Web throwing exceptions on save
- From: Art Isbell <email@hidden>
- Date: Sat, 8 Feb 2003 08:33:52 -1000
On Saturday, February 8, 2003, at 03:28 AM, Stephen Brandon wrote:
I'm having a problem with many to many relationships, and trying to
get them
to successfully create rows in the join table.
From your message, it appears that you have attempted to build a
many-to-many relationship yourself. This is not easy to do correctly
unless you've done so many times. Instead, let EOModeler do it for
you. In EOModeler, select the model entry itself in the upper left
corner of the model window. This will result in all entities being
displayed in the right portion of the window. Select the 2 entities
you want to join in a many-to-many relationship (Apple-Click both
entries if using OS X). Then under the Property menu, select "Join in
Many-to-Many". All relationships will be configured for you.
You may then unset those relationships that you don't need to be class
properties, but try to avoid modifying the relationships themselves. I
suspect your current many-to-many relationships is lacking the
"Propagate Primary Key" setting, but it's difficult to know for sure.
Art
http://homepage.mac.com/aisbell/
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