幫助，在軌accepts_nested_attributes_for 3

Question

我有以下型號：

class Address < ActiveRecord::Base 
    validates_presence_of :street, postal_code 
end 

class Person < ActiveRecord::Base 
    belongs_to :address 
    belongs_to :work_address, :class_name => 'Address' 

    accepts_nested_attributes_for :address, :work_address 

    def initialize(params={}) 
    params[:address] = Address.new 
    params[:work_address] = Address.new 
    super 
    end 
end 

當試圖創建人：

person = { 
    "address_attributes" => {:street => "foo", :postal_code => "45632-963"} 
    "work_address_attributes" => {:street => "bar", :postal_code => "45632-964"} 
} 
Person.create(person) 

我得到的地址域的人物體填滿，但work_adress領域是空白的。然而，它的工作原理，當我嘗試：

p.work_address_attributes = {:street => "bar", :postal_code => "45632-964"} 

在我看來，我有以下代碼：

<%= form_for(@person) do |form| %> 
... 
<%= form.fields_for :address do |address| %> 
    <%= address.text_field :street %> 
    <%= address.text_field :postal_code %> 
<% end %> 

<%= form.fields_for :work_address do |work_address| %> 
    <%= work_address.text_field :street %> 
    <%= work_address.text_field :postal_code %> 
<% end %> 

<%= form.submit %> 
<% end %> 

什麼是錯的？

Answer 1

您是否嘗試過在初始化函數中註釋掉將params[:work_address]設置爲新的Address對象的行？如果您使用嵌套屬性，則不需要設置它。如果你真的需要這兩條線，我會改變他們是這樣的：

params[:work_address] = Address.new if params[:work_address_attributes].nil? 

accepts_nested_attributes_for應該處理邏輯你。也許你的地址對象覆蓋你在散列中傳遞的內容？