ruby-on-rails – Rails 5.2 Active Storage清除/删除附件

所以我使用Active Storage上传附加到Collection模型的多个图像.除非我试图从集合中清除/删除单个附件,否则一切都很顺利.

问题：出于某种原因,每当我加载集合的显示页面时,我的所有图像都会被立即清除/删除.当然,每当我点击链接时我只想删除一个文件.有谁知道如何解决这个问题？

我的收藏展示视图：

<div id="gallery">
  <% @collection.images.each do |image| %>
    <%= image_tag(imagE) %>
    <%= link_to 'Remove image',image.purge %>
  <% end %>
</div>

我已经阅读了http://edgeguides.rubyonrails.org/active_storage_overview.html#removing-files的文档
(见第4段)

但遗憾的是,这并未提供有关如何专门使用purge或purge_later方法的任何信息.

编辑
目前我的代码改为此(仍然遗憾地无效)：

<div id="gallery">
  <% @collection.images.each do |image| %>
    <%= image_tag(imagE) %>
    <%= link_to 'Remove',delete_image_attachment_collections_url(image.signed_id),method: :delete,data: { confirm: 'Are you sure?' } %>
    <% end %>
</div>

在我的collections_controller.rb中有这个

def delete_image_attachment
    @image = ActiveStorage::Blob.find_signed(params[:id])
    @image.purge
    redirect_to root_path
  end

我试图删除附加图像后,这给了我这个错误：

服务器日志：

Started deletE "/collections/eyJfcmFpbHMiOnsibWVzc2FnZSI6IkJBaHBYdz09iiwiZXhwIjpudWxsLCJwdXIiOiJibG9iX2lkIn19--3e75276d414b4c2040e02cf0afbc083e2337faa0/delete_image_attachment" for ::1 at 2018-03-29 19:06:55 +0200
Processing by CollectionsController#delete_image_attachment as HTML
  Parameters: {"authenticity_token"=>"60zIkeknxRYp/sJIWNwF+BrEftYHSCQvak34h8FkadPXgVPQSXN/sCoxI/6FU+jZbqQitES81fyqkmIx6XYP6w==","id"=>"eyJfcmFpbHMiOnsibWVzc2FnZSI6IkJBaHBYdz09iiwiZXhwIjpudWxsLCJwdXIiOiJibG9iX2lkIn19--3e75276d414b4c2040e02cf0afbc083e2337faa0"}
  ActiveStorage::Blob Load (0.1ms)  SELECT  "active_storage_blobs".* FROM "active_storage_blobs" WHERE "active_storage_blobs"."id" = $1 LIMIT $2  [["id",90],["LIMIT",1]]
  ↳ app/controllers/collections_controller.rb:69
  Disk Storage (0.1ms) deleted file from key: 8wpzqPQcWYjK2rVEejcU88FB
  Disk Storage (0.0ms) deleted files by key prefix: variants/8wpzqPQcWYjK2rVEejcU88FB/
   (0.0ms)  BEGIN
  ↳ app/controllers/collections_controller.rb:70
  ActiveStorage::Blob Destroy (0.2ms)  deletE FROM "active_storage_blobs" WHERE "active_storage_blobs"."id" = $1  [["id",90]]
  ↳ app/controllers/collections_controller.rb:70
   (2.0ms)  COMMIT
  ↳ app/controllers/collections_controller.rb:70
  ActiveStorage::Attachment Load (0.2ms)  SELECT  "active_storage_attachments".* FROM "active_storage_attachments" WHERE "active_storage_attachments"."record_id" = $1 AND "active_storage_attachments"."record_type" = $2 AND "active_storage_attachments"."name" = $3 LIMIT $4  [["record_id",["record_type","ActiveStorage::Blob"],["name","preview_image"],1]]
  ↳ app/controllers/collections_controller.rb:70
Redirected to http://localhost:3000/
Completed 302 Found in 5ms (ActiveRecord: 2.5ms)

耙路线的输出：

Prefix Verb   URI Pattern                                                                              Controller#Action
                              root GET    /                                                                                        home#index
                             about GET    /about(.:format)                                                                         pages#about
                           contact GET    /contact(.:format)                                                                       pages#contact
                          setTings GET    /setTings(.:format)                                                                  setTings#edit
                       new_setTing GET    /setTing/new(.:format)                                                                   setTings#new
                      edit_setTing GET    /setTing/edit(.:format)                                                                  setTings#edit
                           setTing GET    /setTing(.:format)                                                                       setTings#show
                                   PATCH  /setTing(.:format)                                                                       setTings#update
                                   PUT    /setTing(.:format)                                                                       setTings#update
                                   deletE /setTing(.:format)                                                                       setTings#destroy
                                   POST   /setTing(.:format)                                                                       setTings#create
delete_image_attachment_collection deletE /collections/:id/delete_image_attachment(.:format)                                       collections#delete_image_attachment
                       collections GET    /collections(.:format)                                                                   collections#index
                                   POST   /collections(.:format)                                                                   collections#create
                    new_collection GET    /collections/new(.:format)                                                               collections#new
                   edit_collection GET    /collections/:id/edit(.:format)                                                          collections#edit
                        collection GET    /collections/:id(.:format)                                                               collections#show
                                   PATCH  /collections/:id(.:format)                                                               collections#update
                                   PUT    /collections/:id(.:format)                                                               collections#update
                                   deletE /collections/:id(.:format)                                                               collections#destroy
                rails_service_blob GET    /rails/active_storage/blobs/:signed_id/*filename(.:format)                               active_storage/blobs#show
         rails_blob_representation GET    /rails/active_storage/representations/:signed_blob_id/:variation_key/*filename(.:format) active_storage/representations#show
                rails_disk_service GET    /rails/active_storage/disk/:encoded_key/*filename(.:format)                              active_storage/disk#show
         update_rails_disk_service PUT    /rails/active_storage/disk/:encoded_token(.:format)                                      active_storage/disk#update
              rails_direct_uploads POST   /rails/active_storage/direct_uploads(.:format)                                           active_storage/direct_uploads#create

我的routes.rb：

Rails.application.routes.draw do
  root 'home#index'

  get 'about',to: 'pages#about',as: :about
  get 'contact',to: 'pages#contact',as: :contact
  get 'instellingen',to: 'setTings#edit'

  resource :setTing
  resources :collections do
    member do
      delete :delete_image_attachment
    end
  end
end

<%= link_to 'Remove',data: { confirm: 'Are you sure?' } %>

def delete_image_attachment
  @image = ActiveStorage::Blob.find_signed(params[:id])
  @image.purge
  redirect_to collections_url
end

resources :collections do
  member do
    delete :delete_image_attachment
  end
end