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 ????
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