# encoding:utf-8 class CreateArticleCats < ActiveRecord::Migration def self.up create_table :article_cats do |t| t.column :name, :string, :null => false, :limit => 100 t.column :position, :integer t.column :ancestry, :string, :limit => 100 t.column :state, :boolean, :default => false end add_index :article_cats, :position add_index :article_cats, :ancestry add_index :article_cats, :name end def self.down drop_table :article_cats end end