Hi all, I have 2 questions: 1- I try to make a primairy key that''s a string (tuis not the default int). I use: t.column "id", :string, {:limit => 30, :null => false, :auto_increment => false} When migrating this gives an error (very generic one). Can someone lease explain the problem with that line? 2- When I have a many-to-many (users-groups) relationship I have a coupling table groupsusers that contain the id of the group and user. is it normal that you give these 2 colums an unique key? Many thanks Stijn --~--~---------~--~----~------------~-------~--~----~ 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 rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---