On 29 April 2013 10:35, siva kumar <[email protected]> wrote: > Im trying to upgrade an app from rails 2.3 to rails 3.0 > > I get the following error in rails 3.0.6 environment > > Error message: > Primary key is not allowed in a has_and_belongs_to_many join table > (appointment_label). > (ActiveRecord::HasAndBelongsToManyAssociationWithPrimaryKeyError) > > Exception class: > ActiveRecord::HasAndBelongsToManyAssociationWithPrimaryKeyError > > seems primary key should be removed from "appointment_label" so I > removed the primary key column and it did worked PERFECT!! > > But what I don't get is the app worked fine in rails 2.3 environment > even with primary key in the table "appointment_label" but not in rails > 3.0.6 environment ????
Presumably it did not matter that the table had a primary key in the earlier version (even though it was not necessary). In Rails 3 they have made it an error. Colin -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.

