Owns destination implies mandatory?
Owns destination implies mandatory?
- Subject: Owns destination implies mandatory?
- From: Riccardo De Menna <email@hidden>
- Date: Wed, 11 Nov 2009 14:43:47 -0800
Hi,
Does the "owns destination" concept imply that the relationship is also "mandatory" for the owned object?
If yes, is it enforced somehow if I don't turn on the mandatory flag in the model?
I'm asking since I'm having issues with ERDEditOwnedRelationship (I posted a message on the wonder list for that but didn't find someone to discuss it)...
I have something like the following:
Person >> Membership << Club
A person HAS to have at least one membership to a club. I'd go with:
Person owns membership
Club owns membership
Person.memberships is mandatory
Membership.person is mandatory
But this is conflicting with ERDEditOwnedRelationship that wants to postpone relationship linking to the NextDelegate phase. This clashes with validation.
So my question is... if I drop the two mandatory concepts does the ownership still imply they are needed and will anyone enforce it?
rdm
P.S.
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