Ruby on Rails:如何使用 has_one 关系处理嵌套表单? [英] Ruby on Rails: How do I do nested forms with a has_one relationship?

问题描述

class PollOption < ActiveRecord::Base
  belongs_to :poll
  has_one :address
end


class Address < ActiveRecord::Base
  belongs_to :user, :poll_options
  apply_addresslogic :fields => [[:number, :street], :city, [:state, :zip_code]]
end

那些是我的相关模型.有任何想法吗?我只是需要一个很好的例子.

Those are my relevant models. Any ideas? I kinda just need a good example.

推荐答案

这应该回答:

http://archives.ryandaigle.com/articles/2009/2/1/what-s-new-in-edge-rails-nested-attributes

主要思想是在您的 PollOption 模型中声明 accepts_nested_attributes_for :address 并按照我提供的链接的第 2 步中的指示更改您的表单.

The main idea is to declare accepts_nested_attributes_for :address in your PollOption model and to change your form as indicated in the step 2 of the link I provided.

另一个有用的链接:http://api.rubyonrails.org/classes/ActiveRecord/NestedAttributes/ClassMethods.html

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