class RenameNameAndUnixname < ActiveRecord::Migration def self.up remove_column :projects, :name rename_column :projects, :unixname, :name rename_column :platforms, :name, :description rename_column :platforms, :unixname, :name rename_column :repositories, :name, :description rename_column :repositories, :unixname, :name end def self.down add_column :projects, :name, :string rename_column :projects, :name, :unixname rename_column :platforms, :description, :name rename_column :platforms, :name, :unixname rename_column :repositories, :description, :name rename_column :repositories, :name, :unixname end end