kernow (owner)

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class CreateGenresShows < ActiveRecord::Migration
  def self.up
    create_table :genres_shows, :id => false do |t|
      t.integer :show_id
      t.integer :genre_id
    end
  end
 
  def self.down
    drop_table :shows_genres
  end
end
 
class Show < ActiveRecord::Base
  has_and_belongs_to_many :genres
end
 
class Genre < ActiveRecord::Base
  has_and_belongs_to_many :shows
end