Why does it need an ID field? Do the relationship keys not make it unique? Can you make it an EOGenericRecord?

On Jan 6, 2010, at 2:07 PM, Mark Woollard wrote:

If you have an entity with no exposed properties incorrect SQL gets generated (mysql + plugin). I have an entity who's sole purpose is to map between two other entities, it contains no data itself, just two one:many relationships, and an id field, so three fields in all (id, and two for the relationships). This causes SQL to be generated 'select t0.relationship1Id, t0., t0.relationship2 FROM ...'. If I add a dummy data property to the entity you get 'select t0.relationship1Id, t0.dummy, t0.relationship2 FROM ...' generated. Seems that an assumption is being made that at least one exposed property will exist for the EO. Is this likely to be the plugin or the driver or WO itself?

Thanks
Mark


--
Chuck Hill             Senior Consultant / VP Development

Practical WebObjects - for developers who want to increase their overall knowledge of WebObjects or who are trying to solve specific problems.
http://www.global-village.net/products/practical_webobjects







_______________________________________________
Do not post admin requests to the list. They will be ignored.
Webobjects-dev mailing list      ([email protected])
Help/Unsubscribe/Update your Subscription:
http://lists.apple.com/mailman/options/webobjects-dev/archive%40mail-archive.com

This email sent to [email protected]

Reply via email to