Question

我有一个带有产品的应用程序-每个产品都有注释/常见问题/附件之类的东西。

我可以成功删除注释和常见问题解答，但不能删除Active Storage附件。

有人可以帮忙吗？我曾尝试在Products控制器中使用一种单独的方法，但是这种方法不起作用，所以我当前的代码行是使用Uploads控制器。

我当前遇到的错误是：

NameError in UploadsController#destroy
uninitialized constant Upload

上传控制器：

class UploadsController < ApplicationController
  load_and_authorize_resource :nested => :product       

    def destroy
        @product = Product.find(params[:id])
        @upload = @product.ActiveStorage::Attachment.find(params[:id])

        @upload.purge 

        redirect_back(fallback_location: products_path)
    end

end

产品视图：

<% @product.uploads.each do |upload| %>
      <% if can? :destroy, upload %>
     <td><%= link_to t('X', :default => t("X")),
                      product_upload_path(@product, upload),
                      :method => :delete,
                      :data => { :confirm => t('.confirm', :default => 'Are you sure you want to delete this attachment?') },
                      :id =>'delete-faq' %></td>
      <% end %>
      <% if upload.variable? %>
        <span><%= image_tag upload.variant(resize: "100x100"), class: "other-image" %></span>
      <% elsif upload.previewable? %>
        <span><%= link_to image_tag(upload.preview(resize: "100x100"), class: "other-image"), rails_blob_path(upload), target: "_blank" %></span>
      <% else %>
        <span><%= link_to image_tag("paper.jpg", size: "100x100", class: "other-image"), rails_blob_path(upload), target: "_blank" %></span>
      <% end %>
    <% end %>

路线：

  resources :products do
    resources :notes
    resources :faqs
    resources :uploads 
  end

Answer 1

我知道这不是最RESTful的解决方案，但我可以使用它，因此添加此作为答案，以防其他人将头发扯掉。

我已经检查了日志，并且确实删除了附件图像和斑点。

就我而言，产品has_many个上传。

routes.rb：

resources :products do
    resources :uploads do
    match '/remove', to: 'products#remove', via: 'delete'
    end
  end

产品控制器（是的，我知道，把它放在这里并不理想）

def remove
        @product = Product.find(params[:product_id])
        @upload = @product.uploads.find(params[:upload_id])
        @upload.purge

        redirect_to product_path(@product), notice: "Upload was successfully removed."
    end

产品展示视图：

 <% @product.uploads.each do |upload| %>
      <%= link_to "X", product_upload_remove_path(@product, upload),
                      :method => :delete,
                      :data => { :confirm => t('.confirm', :default => 'Are you sure you want to delete this upload?') },
                      :id =>'delete-faq', :class => 'delete' %></td>
 <% end %>

希望这将对其他人有所帮助或为更RESTful解决方案奠定基础。

在Rails 5中删除ActiveStorage附件

1 个答案: