form_for助手似乎不能在Rails 3中工作。我试图为模型及其子模型构建表单。Rails 3 form_for嵌套模型表单
class Person < ActiveRecord::Base
has_one :address
end
class Address < ActiveRecord::Base
belongs_to :person
end
在早期版本的Rails我将建立这样的形式:
-# Haml
- form_for @person do |f|
... (person fields here)
- f.fields_for @person.address do |address_f|
... (address fields here)
我怎样才能做到这一点的Rails 3?