Question

我是ROR的新手，我正在尝试创建一个动作，我可以从中删除数据库中的文件。我已经写了相同的代码，但给url错误。查看删除操作： -

= link_to raw('<span>Delete</span>'), :method=> :delete,  destroy_attachment_path(attachment.descendants.last),
                              :data => { :confirm => 'Are you sure? This will permanently delete this file!' },
                              :remote => true,
                              :class => 'deleteShow deleteFile'

相同的控制器： -

enter code here

def destroy

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

  @attachment.destroy

  respond_to do |format|
    format.html { redirect_to attachments_url }
    format.json { head :no_content }
  end
end

当我尝试运行此代码时，错误显示为无效方法Destroy_attachment路径。任何人都可以帮我解决问题吗？提前谢谢。

Answer 1

你可以试试这个，它对我有用..

link_to raw('<span>Delete</span>'), attachment.descendants.last, :method=> :delete,      :data => { :confirm => 'Are you sure? This will permanently delete this file!' },
                          :remote => true,
                          :class => 'deleteShow deleteFile'

Answer 2

你的link_to应该是

= link_to raw('<span>Delete</span>'), attachment_path(attachment.descendants.last),
  :method => :delete,
  :data => { :confirm => 'Are you sure? This will permanently delete this file!' },             
  :remote => true,
  :class => 'deleteShow deleteFile')

或者您可以使用嵌套表单

= link_to attachment_path(attachment.descendants.last),
  :method => :delete,
  :data => { :confirm => 'Are you sure? This will permanently delete this file!' },             
  :remote => true,
  :class => 'deleteShow deleteFile') do
    %span Delete

（注意缩进，因为你最有可能使用haml，我只是这样做以更好地阅读代码）

在rails中为动作创建URL

2 个答案: