非綁定形式的Coccon寶石嵌套屬性

Question

我有模特活動

class Activity < ApplicationRecord
  accepts_nested_attributes_for :activity_documents, reject_if: proc { |attributes| attributes[:document].blank? && attributes[:document_title].blank? }, allow_destroy: true
end

另一種模式

class ActivityDocument < ApplicationRecord
  mount_uploader :document, DocumentUploader
  belongs_to :activity
end

帶動作活動的控制者購買

class PurchaseController < ApplicationController
  def activity
    @activity     = Activity.find_by_id(params[:id])
    @activity.activity_documents.build
  end
end

ERB activity.html.erb

  <%= simple_form_for @activity, :url => take_activity_path, :method => :post , html: { class: "exercise-form"} do |f| %>

  <!-- nested attributes start -->
  <section class="show-section">
    <div class="row">
      <div class="col l12"><h4>Documents</h4></div>
      <div class="col s12">
       <%= f.simple_fields_for :activity_documents do |builder| %>
        <% render 'activity_document_fields', f: builder %>
       <% end #f.simple_fields_for%>
         <div class="links">
          <%= link_to_add_association 'Add Documents', f, :activity_documents, class: "btn mb-2" %>
        </div>
      </div>
    </div>
  </section>

<% end %>

_activity_document_fields.html.erb

<div class="nested-fields">
    <div class="row">
        <div class="col l12">
            <%= f.input :document_title %>
            <%= f.hidden_field :user_id, :value => current_user.id  %>  
            <%= f.hidden_field :user_type, :value => current_user.role  %>
        </div>
        <div class="col l8">
            <%= f.input :document %>
        </div>
        <div class="col l1 mt-3">
            <%= link_to_remove_association "delete", f, class: "material-icons teal-text text-lighten-1" %>
        </div>
    </div>
</div>

現在，可以從兩個不同的位置上載與此文檔相關的activity_documents。 創建活動本身或從PurchaseController活動中創建。

我需要通過活動創建上載的文檔不可通過活動的PurchaseController操作進行編輯/刪除，因為將有兩種不同類型的文檔，並且將由兩種不同類型的用戶上載。

另一種選擇是僅允許上傳新文檔，而不允許編輯先前的文檔。

Answer 1

這個答案似乎解決了我的問題。

我們進行了以下更改：

<section class="show-section">
  <div class="row">
    <div class="col l12"><h4>Documents</h4></div>
    <div class="col s12">
      <%= f.simple_fields_for :activity_documents do |builder| %>
        <% render 'activity_document_fields', f: builder %>
      <% end #f.simple_fields_for%>
      <div class="links">
       <%= link_to_add_association 'Add Documents', f, :activity_documents, class: "btn mb-2" %>
      </div>
    </div>
  </div>
</section>

至

  <section class="show-section">
    <div class="row">
      <div class="col l12"><h4>Documents</h4></div>
      <div class="col s12">
       <%= f.simple_fields_for :activity_documents, @activity.activity_documents.build do |builder| %>
        <% render 'activity_document_fields', f: builder %>
       <% end #f.simple_fields_for%>
         <div class="links">
          <%= link_to_add_association 'Add Documents', f, :activity_documents, class: "btn mb-2" %>
        </div>
      </div>
    </div>
  </section>