021_add_articles_categories.rb
378 Bytes
class AddArticlesCategories < ActiveRecord::Migration
def self.up
create_table :articles_categories, :id => false do |t|
t.column :article_id, :integer
t.column :category_id, :integer
end
add_index(:articles_categories, :article_id)
add_index(:articles_categories, :category_id)
end
def self.down
drop_table :articles_categories
end
end