On 2 January 2011 14:11, Michal Burak <[email protected]> wrote: > Colin Law wrote in post #971843: >> On 2 January 2011 13:42, Michal Burak <[email protected]> wrote: >>> class Foo < ActiveRecoed::Base >>> has_many :www_links, :as => :owner >>> end >>> >>> class WwwLink < ActiveRecord::Base >>> belongs_to :owner, :polymorphic => true >>> attr_accessible :href >>> end >>> >>> I want to ensure that each Foo instance does not have same links (href). >> >> I don't understand what you mean by the above. >> >> Colin > > test "should not allow for adding two same links" do > # given > foo1 = create_foo.save! > link1 = foo1.www_links.create(:href => 'wp.pl') > link1.save! > > foo2 = create_foo.save! > link2 = foo2.www_links.create(:href => 'wp.pl') > > # when > link2.save! > > # then > errors occured ! > end
So you are just wanting uniqueness of www_link.href? Will not validates_uniqueness_of in WwwLink class (backed up by a unique constraint in the database of course) do the job? I think in this case it will be the foo2.www_links.create that will fail. Colin -- 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.
