javascript - 如何在 .js.erb 文件中执行模态的 js 渲染？

Question

我有一个 main.js.erb ，如下所示:

$(document).on("page:change", function(){
  MainJS.init();
    $("#add-video-step-1").html("<%= escape_javascript(render 'videos/upload_video') %>");
    $('#myModalLabel').modal(show);
    Ladda.bind('#video-submit');
    console.log("Upload.js.erb has been executed");

});

基本上，我想要发生的是每当按下 id #video-submit 的按钮时，我希望它执行部分 videos/upload_video.

只需执行常规渲染“videos/upload_video”我认为应该足够了，但是当我尝试此操作时，我收到此错误:

NoMethodError at /
undefined method `render' for #<#<Class:0x007f916fcf1310>:0x007f91721a9c20>
  (in /app/assets/javascripts/main.js.erb)

在这一行:

$("#myVCModal").html("<%= escape_javascript(render 'videos/upload_video') %>");

想法？

编辑 1

这是根据 uDAY 请求的部分代码 - 即 video/_upload_video.html.erb:

<div class="bootstrap-styles">
 <div class="modal-header">
    <button type="button" class="close" data-dismiss="modal" aria-hidden="true">×</button>
    <h3 id="myModalLabel">Upload your Video</h3>
    <p><i>Step 2 of 2 - TEST</i></p>
  </div>
  <div class="modal-body">
    <div class="form">
      <%= form_tag @upload_info[:url], :multipart => true do %>
        <div>Step 2 of 2</div>
        <%= hidden_field_tag :token, @upload_info[:token] %>
        <%= file_field_tag :file, title: 'Choose video to upload' %>
        <p class="uploader">
          <button class="btn btn-success ladda-button" data-color="green" data-style="expand-left"><span class="ladda-label">Upload Video</span><span class="ladda-spinner"></span></button>
        </p>
      <% end %>

    </div>
  </div>
  <div class="modal-footer">
  </div>
</div>

Answer 1

您收到错误，因为 render 是 views (ActionView) 的一种方法，并且您在不可用的 Assets 中尝试它。因此，要使其正常工作，我们应该做的是初始化 ActionView ，为此，您的 main.js.erb 应该如下所示:

$(document).on("page:change", function(){
  MainJS.init();
    <% action_view = ActionView::Base.new(Rails.configuration.paths["app/views"].first) %>
    $("#add-video-step-1").html("<%= action_view.escape_javascript(action_view.render 'videos/upload_video') %>");
    $('#myModalLabel').modal(show);
    Ladda.bind('#video-submit');
    console.log("Upload.js.erb has been executed");

});

我刚刚尝试过，它对我有用，尝试一下，看看它是否适合你:)

<小时/>

对于ajax请求和渲染部分内容，您只需将ajax请求发送到 Controller action将以下代码放入相应的 View 文件中(action. js.erb):

$("#add-video-step-1").html("<%= escape_javascript(render 'videos/upload_video') %>");
$('#myModalLabel').modal(show);