Chuck, I'll probably just have the User object determine valid options for that user - and it can start out be making sure that the Male/Female flags match. Thanks for the idea!
Ken On Feb 26, 2013, at 3:43 PM, Chuck Hill <[email protected]> wrote: > Maybe something like having then use a Role object and delegate the > validation to object? > > > On 2013-02-26, at 12:38 PM, Ramsey Gurley wrote: > >> Can you give a concrete example illustrating what you mean? Generally I stay >> away from enforcing business rules with the schema. When business rules >> change, as they always do, you're boned. I use the schema to enforce data >> integrity. >> >> Ramsey >> >> On Feb 26, 2013, at 1:11 PM, Ken Anderson wrote: >> >>> All, >>> >>> I have a difficult decision to make and am waffling back and forth. I'm >>> hoping some of you guys might have come across a similar situation and >>> would have some recommendations. >>> >>> I have a model where a number of entities can by applied only to males or >>> only to females (it's an exercise app). Part of me wants to create >>> sub-entities called "Male…" and "Female…" because EOF will effectively >>> validate relationships for me. Unfortunately, it's a pretty deep entity >>> hierarchy and there would be a lot of entities that would have to fall into >>> this category. Not to mention there are join tables that wouldn't have an >>> M/F flag, but to stay consistent would have to be subclassed as well. >>> >>> Any thoughts? I would do them all with single table inheritance, so there >>> wouldn't be much of a performance hit. >>> >>> Thanks, >>> Ken >>> >>> >>> _______________________________________________ >>> Do not post admin requests to the list. They will be ignored. >>> Webobjects-dev mailing list ([email protected]) >>> Help/Unsubscribe/Update your Subscription: >>> https://lists.apple.com/mailman/options/webobjects-dev/rgurley%40smarthealth.com >>> >>> This email sent to [email protected] >> >> >> _______________________________________________ >> Do not post admin requests to the list. They will be ignored. >> Webobjects-dev mailing list ([email protected]) >> Help/Unsubscribe/Update your Subscription: >> https://lists.apple.com/mailman/options/webobjects-dev/chill%40global-village.net >> >> This email sent to [email protected] > > -- > Chuck Hill > Executive Managing Partner, VP Development and Technical Services > > 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/gvc/practical_webobjects > > Global Village Consulting ranks 13th in 2012 in BIV's Top 100 Fastest Growing > Companies in B.C! > Global Village Consulting ranks 76th in 24th annual PROFIT 200 ranking of > Canada’s Fastest-Growing Companies by PROFIT Magazine! > > > > > > > > > > > _______________________________________________ Do not post admin requests to the list. They will be ignored. Webobjects-dev mailing list ([email protected]) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/webobjects-dev/archive%40mail-archive.com This email sent to [email protected]
