[Rails] Re: Has Many Relationship: collection_ids= Method Useless?

On Nov 14, 2:42 am, Leonardo Mateo wrote: > On Sat, Nov 14, 2009 at 6:37 AM, MaggotChild wrote: > > In Rails, providing the associated ID works fine with has_one but if > > you try to do this with a has_many: > > > form_for(@country) do |form| > >  form.select :state_ids, @states > >  form.sel

[Rails] Re: Has Many Relationship: collection_ids= Method Useless?

On Sat, Nov 14, 2009 at 6:37 AM, MaggotChild wrote: > > When modifying a model that has a has_one or has_many relationship > people usually create form that will submit the id of the  selected > associated object. Rails takes this into consideration with > validations: validate_presence_of  :coun