Затегированы Помогите с changed_attributes

Ключевые слова: at_least_once() [1] rails WYSIWYG [2] Rails сервера [1] $_ [1] счетчик [1] совместная работа [1] Yahoo [1] intern [1] seo ror [1] ljust [1] camelcase [1] cache [3] before_validation_on_create [1] svn commit [1] script win dir [1] Авторизация [1] числа [1] redirect_to [1] Assertions [1] 3 tier architecture [1]