require 'migrate' require 'rexml/document' class CreateCountries < ActiveRecord::Migration def self.up create_table :countries, innodb_table do |t| t.column :id, :integer_pk, :null => false t.column :code, :string, :limit => 2, :null => false t.column :min_lat, :double, :null => false t.column :max_lat, :double, :null => false t.column :min_lon, :double, :null => false t.column :max_lon, :double, :null => false end add_index :countries, [:code], :name => "countries_code_idx", :unique => true end def self.down drop_table :countries end end