Re: addObjectsToBothSide... not really both side
Dev WO <[email protected]>
| Newsgroups | gmane.comp.web.webobjects.devel |
|---|---|
| Message-ID | <[email protected]> |
I've setup my onetoone on both pk and everything is good:) Thanks a lot:) I'll wait for tomorrow for the next question;) Xavier > You really need to set both directions - EOF will not do it for you. > > On Sep 26, 2006, at 3:38 PM, Dev WO wrote: > >> Hi zak, >>> Dev WO wrote on 9/25/06 1:26 PM: >>>> So this one is a oneToOne relationship, with is specified in both >>>> entities A and B. >>> >>> [...] >>> >>>> A and B have a foreign key to each other, but only A gets it... B's >>>> foreign key stay "null". >>> >>> I think you may not be modeling the relationship correctly. If you >>> really want a 1-to-1, A and B should share the same primary key >>> and A >>> should be propagating its primary key to B. >>> >>> If both tables have their own primary keys, and both have foreign >>> keys >>> to each other, things don't really stand up from a relational logic >>> point of view because you actually have two relationships -- A is >>> joined >>> to B by by A.b_id and B is joined to A by B.a_id. >>> >>> Assuming that A.setB() is defined in terms of A.b_id, the reason >>> B.a_id >>> doesn't update is that B.a() is defined by B.a_id but the >>> relationship >>> you just set is defined by A.b_id. You have two separate >>> relationships >>> based on two separate keys. >> >> HUUUUUU I feel stupid...not the first time though, and probably >> not the last one too;) >> >> In my case, B can exist alone (without any A to relating to it), >> but A cannot exist alone, it must be linked to a B. >> >> Does this change anything? >> I'll try to make the relationship between pks. >> >> Thanks:) >> >> Xavier >> >> _______________________________________________ >> 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/lists% >> 40anderhome.com >> >> This email sent to [email protected] > >