rails 4 更新嵌套属性不起作用

Question

我尝试了所有关于这个问题的答案，但我仍然无法解决我的问题。我需要控制器（和模型）：清单和字段。

class NcchecklistsController < ApplicationController
def update
    if @ncchecklist.update(ncchecklist_params)
      redirect_to ncchecklists_url, notice: 'Check-list sauvgardée.'
    else
      render :index
    end
  end
private
    # Use callbacks to share common setup or constraints between actions.
    def set_ncchecklist
      @ncchecklist = Ncchecklist.find(params[:id])
    end

    # Only allow a trusted parameter "white list" through.
    def ncchecklist_params
      params.require(:ncchecklist).permit(:name, ncfield_params: [:value, :id])
    end

现场控制器

class NcfieldsController < ApplicationController
private
    # Use callbacks to share common setup or constraints between actions.
    def set_ncfield
      @ncfield = Ncfield.find(params[:id])
    end

    # Only allow a trusted parameter "white list" through.
    def ncfield_params
      params.require(:ncfield).permit(:name, :value, :ncchecklist_id)
    end

清单模型

class Ncchecklist < ActiveRecord::Base
  has_many :ncfields, dependent: :destroy
  attr_accessible :ncfields
  accepts_nested_attributes_for :ncfields
end

场模型

class Ncfield < ActiveRecord::Base
  belongs_to :ncchecklist

end

观点：

<h1> Vos check-list </h1>
<% @ncchecklists.each do |ncchecklist| %>
  <%= form_for(ncchecklist) do |ncchecklist_form| %>
    <h3><%= ncchecklist.name %></h3>
    <% ncchecklist.ncfields.each do |field| %>
      <%= ncchecklist_form.fields_for :ncfields, field do |ncfield_form| %>
        <p>
          <%= ncfield_form.label :name, 'Tâche : ' %>
          <%= field.name %> : 
          <%= ncfield_form.label 'value_false', 'Non' %>
          <%= ncfield_form.radio_button :value, false %>
          <%= ncfield_form.label 'value_true', 'Oui' %>
      <%= ncfield_form.radio_button :value, true %>
        </p>
      <% end %>
    <% end %>
    <%= ncchecklist_form.submit 'Sauvegarder '+ncchecklist.name %>
  <% end %>
<% end %>

视图如下： view screen-shot

问题是当我更改单选按钮的值并单击保存时，没有任何反应。我在日志中找到了这个：

Started PATCH "/redmine/ncchecklists/2" for ::1 at 2016-12-21 15:58:48 +0100
Processing by NcchecklistsController#update as HTML
  Parameters: {"utf8"=>"✓", "authenticity_token"=>"XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX", "ncchecklist"=>{"ncfields_attributes"=>{"0"=>{"value"=>"false", "id"=>"2"}, "1"=>{"value"=>"false", "id"=>"3"}}}, "commit"=>"Sauvegarder Chef de projet", "id"=>"2"}
  Current user: anonymous
Redirected to http://localhost/redmine/ncchecklists

感谢您的帮助

Answer 1

您的控制器的强参数略有偏差。它们应该是 ${model}_attributes 而不是 ${model}_params

def ncchecklist_params
  params.require(:ncchecklist).permit(:name, ncfields_attributes: [:value, :id])
end

您可以在您的问题末尾看到它被发送到您的原始日志中，但是强参数正在将其过滤掉。

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