convert_users_tokens_to_always_remember_me_clearance.rb

class ConvertUsersTokensToAlwaysRememberMeClearance < ActiveRecord::Migration
  def self.up
    remove_index :users, :column => :token
    remove_index :users, :column => [:id, :token]

    remove_column :users, :token
    remove_column :users, :token_expires_at

    add_column :users, :confirmation_token, :string, :limit => 128
    add_column :users, :remember_token,     :string, :limit => 128

    add_index :users, [:id, :confirmation_token]
    add_index :users, :remember_token
  end

  def self.down
    remove_index :users, :column => :remember_token
    remove_index :users, :column => [:id, :confirmation_token]

    remove_column :users, :remember_token
    remove_column :users, :confirmation_token

    add_column :users, :token_expires_at, :datetime
    add_column :users, :token,            :string, :limit => 128

    add_index :users, :token
    add_index :users, [:id, :token]
  end
end