[英]How to save a belongs_to association for a polymorphic model with nested attributes?
[英]Can't save nested model on polymorphic association
被迫寻求有关在多态关联上保存嵌套模型的帮助。 我缺少了一些东西,但找不到。 一切都非常简单。 有可以有多个电话的地址。 所以模型是
class Address < ActiveRecord::Base
has_many :phones, as: :phoneable
accepts_nested_attributes_for :phones, allow_destroy: true
validates :city, :street, :building, :name, presence: true
end
和
class Phone < ActiveRecord::Base
belongs_to :phoneable, polymorphic: true
validates :number, :extension, presence: true
end
addresses_controller.rb
def new
@address = Address.new
@phone = @address.phones.build
authorize @address
end
def create
@address = Address.create(address_params)
authorize @address
if @address.save
binding.pry
flash[:success] = "Address #{@address.name} created"
redirect_to address_path(@address)
else
flash.now[:danger] = 'Failed'
render :new
end
end
def address_params
params.require(:address).permit(:name, :street, :building, :city, phones_attributes: [:id, :number, :extension, :details] )
end
/app/views/address.html.erb
<div class="row">
<div class="col-md-12">
<%= form_for(@address, html: {class: 'form-horizontal', role: 'form'}) do |f| %>
<%= render 'shared/errors', obj: @address, model_name: 'addresses' %>
<div id="create-form">
<div class="form-group">
<div class="control-label col-md-4">
<%= f.label :city, 'Город' %>
</div>
<div class="col-md-4">
<%= f.select(:city, options_for_select(['Moscow', 'Samara']), {}, {class: "form-control"}) %>
</div>
</div>
<div class="form-group">
<div class="control-label col-md-4">
<%= f.label :street, 'Street' %>
</div>
<div class="col-md-4">
<%= f.text_field :street, class: 'form-control' %>
</div>
</div>
<div class="form-group">
<div class="control-label col-md-4">
<%= f.label :building, 'Building' %>
</div>
<div class="col-md-4">
<%= f.text_field :building, class: 'form-control' %>
</div>
</div>
<div class="form-group">
<div class="control-label col-md-4">
<%= f.label :name, 'Place name' %>
</div>
<div class="col-md-4">
<%= f.text_field :name, class: 'form-control' %>
</div>
</div>
<div class="form-group">
<div class="control-label col-md-4">
<%= f.label :phones, 'Phone' %>
</div>
<div class="col-md-4">
<%= f.fields_for :phone do |phone_form| %>
<%= phone_form.text_field :number, class: 'form-control' %>
</div>
</div>
<div class="form-group">
<div class="control-label col-md-4">
<%= phone_form.label :extension, 'Ext.' %>
</div>
<div class="col-md-4">
<%= phone_form.text_field :extension, class: 'form-control' %>
</div>
<% end %>
</div>
<div class="form-group">
<div class='col-md-offset-4 col-md-6'>
<%= f.submit @address.new_record? ? 'Add' : 'Update', class: 'btn btn-primary btn-md' %>
</div>
</div>
</div>
<% end %>
</div>
</div>
我遇到的第一个问题是,如果我将key :phones
代替:phone
放入以下行<%= f.fields_for :phone do |phone_form| %>
<%= f.fields_for :phone do |phone_form| %>
我的电话文本字段没有显示,但应该显示。 如果我使用:phone
一位用户在这里强调了这一时刻https://stackoverflow.com/a/3328041/2049476一切都可以正常工作,但似乎错了。 还有第二个。 电话对象未保存在数据库中,当我创建新地址或编辑当前地址时,我成功了,但是如果我将所有字段保留为空白,电话不会显示任何验证错误。 这是我在params
哈希中所拥有的
{"utf8"=>"✓", "authenticity_token"=>"inwXr3Ev/Aj/hZRY2IadizDHDgdSFo2zFhY9DAvysfFu3jjD9AS66esKVsTzEuKo2WC46YQt6HnOKTgInvfUEg==", "address"=>{"city"=>"Moscow", "street"=>"ul. Tsentralnaya d. 4 kv. 220", "building"=>"1212", "name"=>"Astoria", "phone"=>{"number"=>"9215555555", "extension"=>"111"}}, "commit"=>"Add", "controller"=>"addresses", "action"=>"create"}
我想念什么?
尝试回答2个问题:
正确的方法是传递:phones
,然后将phone
作为变量传递给field_for
,就像在这里完成的那样:
<%- @address.phones.each.with_index do |phone, index| %> <%- f.fields_for :phones, phone do |phone_form| %> <%- end %> <%- end %>
应该从第一个问题开始解决,因为shoudl字段是通过params
发送给ot服务器的,而不是通过params
发送的,不是通过phone
散列,而是通过phones_attributes
哈希数组,以便accepts_nested_attributes_for
可以接受电话:
phones_attributes: [{ ... },{ ... }]
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.