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usage_notes
2006 Apr 20
5
Using Migrations to convert join table to join model
Greetings,
I''m trying to convert a HABTM w/attributes join table in my database
into a join model table in order to utilize the new has_many :through
functionality introduced in Rails 1.1. Here''s the current table
definition:
licenses_user_groups: license_id, user_group_id, usage_notes
Perhaps it was a mistake, but I made (license_id, user_group_id) the
primary key.
Now, after playing with has_many :through, I have discovered that, among
other modifications, I really need to add an id column to the table and
make it the primary key. However, I cannot figure out how to use...