AJAX file uploads in Rails using attachment_fu and responds_

发布时间：2020-12-16 00:39:29 所属栏目：百科来源：网络整理

导读：转自：https://github.com/markcatley/responds_to_parent 说明：rails中模拟ajax方式上传文件插件下载地址：ruby script/plugin install http://responds-to-parent.googlecode.com/svn/trunk/ Adds responds_to_parent to your controller to respond to

转自：https://github.com/markcatley/responds_to_parent

说明：rails中模拟ajax方式上传文件

插件下载地址：ruby script/plugin install http://responds-to-parent.googlecode.com/svn/trunk/

Adds responds_to_parent to your controller to respond to the parentdocument of your page. Make Ajaxy file uploads by posting the form to ahidden iframe,and respond with RJS to the parent window.

Example

Controller:

class Test < ActionController::Base
  def main
  end

  def form_action
    # Do stuff with params[:uploaded_file]

    responds_to_parent do
      render :update do |page|
        page << "alert($('stuff').innerHTML)"
      end
    end
  end
end

main.rhtml:

<html>
  <body>
    <div id="stuff">Here is some stuff</div>

    <form target="frame" action="form_action">
      <input type="file" name="uploaded_file"/>
      <input type="submit"/>
    </form>

    <iframe id='frame' name="frame"></iframe>
  </body>
</html>

（编辑：李大同）

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