I guess my question is this: if you declare that 'a has_one b', is it a requirement that you must also state 'b belongs_to a' (i.e. can you have a 'has_one' without a corresponding 'belongs_to' ?). If this requirement holds true and I state that a prediction has_one race, then I must also state that a race belongs_to a prediction. I may be mistaken here, but this wouldn't allow me to retrieve all of the predictions associated with a given race (and a race doesn't really belong to a prediction).
Mr. Ed :-) Aldric Giacomoni wrote: > Mr Horse wrote: >> Thanks for the advice Aldric. This approach makes sense, but I get a >> little confused with the relationship between predictions and races. >> >> A prediction has_one race, but does this mean that a race must belong_to >> a prediction? While the first statement is correct (a prediction has_one >> race), a race has many predictions associated with it. Is it possible to >> state that a "race has_many predictions" as well as saying that a >> "prediction has_one race"? >> >> I could say that a race has_many predictions and a prediction belongs_to >> a race, but it makes more sense to me to think of a prediction having a >> race as opposed to the other way around (a prediction belonging to a >> race). >> >> Eddie > > A horse is a horse, of course of course... Oh, sorry. I was distracted. > > A prediction definitely doesn't belong to a race ;-) > And a race doesn't belong_to a prediction because there's no foreign key > for prediction in the race, is there? -- Posted via http://www.ruby-forum.com/. -- 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.
