db/migrate/20120526134612_create_users_interests_join_table.rb


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class CreateUsersInterestsJoinTable < ActiveRecord::Migration
  def up
    create_table :users_interests, :id => false do |t|
      t.integer :user_id
      t.integer :interest_id
    end
  end
  def down
    drop_table :users_interests
  end
end