thanks for replies. it gives me some thought about making active record association.
then what if the man is a single? husband may not have current_marriage. i was thinking that has_one means it should have one object. But as you know not every man will marry. please more advice for this novice. On May 1, 2:17 am, Rob Biedenharn <[email protected]> wrote: > On Apr 30, 2009, at 12:56 PM, Commander Johnson wrote: > > > Did you consider > > > has_one :wife > > > And in Wife.rb > > > belongs_to :man > > Or: > class Wife > has_many :marriages > has_one :current_marriage, :class_name => 'Marriage', :conditions > => { :current => true } > has_one :husband, :through => :current_marriage > end > > class Marriage > belongs_to :wife > belongs_to :husband > end > > class Husband > has_many :marriages > has_one :current_marriage, :class_name => 'Marriage', :conditions > => { :current => true } > has_one :wife, :through => :current_marriage > end > > -Rob > > Rob Biedenharn http://agileconsultingllc.com > [email protected] > > > > > On Thu, Apr 30, 2009 at 6:49 PM, serenobs <[email protected]> wrote: > > > (my post was deleted i don't know why) > > Hi. I have a question. > > for example, when model records about man, suppose man can marry with > > 1 woman. > > then i think code will be like this > > class Man < ActiveRecord::Base > > has_many: wife > > end > > > Because one man can marry with up to 1 woman( 0 or 1 ) > > it can't be 1:1 relationship, didn't it? > > but at the same time more than 1 wife is not allowed. > > then how can i model this relationship into rails code? > > has_many :limit option is fit for this relation? > > > Thanks. > > and i wish it is not deleted again. If it should be deleted please let > > me know why it should be.- Hide quoted text - > > - Show quoted text - --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---
