Миграции базы данных в Rails

Original. Submitted by alexbaumgertner 19.04.2010.
Tags: migrations, rails, ruby, программирование.
Submitted for translation by alexbaumgertner 19.04.2010.

You’ll learn all about migrations including: * The generators you can use to create them * The methods Active Record provides to manipulate your database * The Rake tasks that manipulate them * How they relate to schema.rb