Question

这是一个复杂的问题，所以我会尽力解释。我有一个附件模型，我使用carrierwave_direct作为gem。 Carrierwave_direct需要在一个页面上上传，然后在另一个页面上上传属性。它需要将您重定向到的另一个页面是编辑页面，但是编辑页面上的属性我无法通过模型进行验证，除非我希望上传失败（因为它不会创建带有针对另一个页面的验证的id ）。我想我所说的是如何验证模型属性仅在编辑页面上存在，如果用户退出页面而不填写表单，则删除模型实例。我希望它能够做到这一点，因为我的模型需要它才能在上传时创建模型实例。请参阅下面控制器中的我的代码

  def edit
    @attachment = Attachment.find(params[:id])
  end

  def report_uploader
    @uploader = Attachment.new.delivery
    @uploader.success_action_redirect = uploaded_attachments_url
    @uploader
  end

  helper_method :report_uploader

  def after_upload
    @attachment = Attachment.new(recruiter_id: current_user.id, uploader_name: current_user.first_name + " " + current_user.last_name)
    @recruiter = current_user
    @attachment.url = @attachment.delivery.direct_fog_url + params[:key]
    @attachment.key = params[:key]
    @attachment.filename = File.basename(@attachment.key)
    @attachment.save

    redirect_to edit_attachment_path(id: @attachment.id, :anchor => 'reports')
  end

附件模式

.head
    %h2 Add Attachment
    .close
      %a{:href=>"#",:rel=>"modal:close"} &#10062;
  .content
    = direct_upload_form_for report_uploader , :html => { :class => "standard" } do |f|
      .fieldgroup.upload
        .field
          .upload
            = link_to "#", class: "btn primary" do
              = image_tag 'loader-white.gif', alt: 'Loading', class: 'loading'
              Upload Attachment
            = f.file_field :delivery, class: 'file_upload', id: 'upload_attachment'

编辑页面（用户重定向到此处）

.content
  %h2 Add Some Additional Stuff to your Attachment!
  = form_for @attachment, html: {class: "standard manage-job"} do |f|
    .fieldgroup.upload
      .field
        Your Attachment Title
        %br
        %a{href:  attachment_path(id: @attachment.id),  target: '_blank' }
          = @attachment.filename
      .field
        %select{name: "attachment[attachment_type]"}
          %option{value: ""} Select Attachment Type
          %option{value: "Type A"} Type A
          %option{value: "Type B"} Type B
          %option{value: "Type C"} Type C       
      .field
        Description of your Attachment
        = f.text_area :description 
      .actions
        = f.submit "Submit Report", class: "btn primary"  

= link_to 'Cancel', attachments_path

验证编辑页面上是否存在属性

0 个答案: