Rails 3.1 Migrations

mig.rb

####Before Rails 3.1
class CreateUsers < ActiveRecord::Migration
  def self.up
    create_table :users do |t|
      t.string :name
      t.string :email

      t.timestamps
    end
  end

  def self.down
    drop_table :users
  end
end

####In Rails 3.1
class CreateUsers < ActiveRecord::Migration
  def change
    create_table :users do |t|
      t.string :name
      t.string :email

      t.timestamps
    end
  end
end

class CreateUsers < ActiveRecord::Migration
  def up
    create_table :users do |t|
      t.string :name
      t.string :email

      t.timestamps
    end
  end

  def down
    drop_table :users
  end
end