class AddLabMembership < ActiveRecord::Migration def self.using_Mysql? if(ActiveRecord::Base.connection.adapter_name == "MySQL") return true; else return false; end end def self.up if(using_Mysql?) transaction do create_table "lab_memberships", :force => true do |t| t.column "lab_group_id", :integer t.column "user_id", :integer end end else create_table "lab_memberships", :force => true do |t| t.column "lab_group_id", :integer t.column "user_id", :integer end end end def self.down drop_table "lab_memberships" end end