无法在js.erb文件中进行用户渲染

Question

I have the following in a js.erb file:

  //add an image from the gallery to the mail later
  $('.uploaded_image').click(function(){

      var src=$(this).attr('src').replace("thumb", "medium");
      var location = $('#user_image_location').attr('value');
      $('#mailing_body').contents().find("[data-edit-img="+''+location+''+"]").attr('src', src);
      $('#image_form').html('<%=render "user_images/form"%>');
      $('[data-dismiss]="cancel"').click();

  })

I thought I could use erb in the js file to replace content on a page. I get the following error:

undefined method `render' for #<#<Class:0x00000103dea400>:0x000001059f2198>

If I remove the following line:

  $('#image_form').html('<%=render "user_images/form"%>');

it all works.

I thought I could use erb in js files with Rails 3.2

Why does this not work?

Thanks in advance.

Answer 1

You most certainly can use render (including any & all helpers, resources etc.) inside your .js.erb file (I just verified to be certain).

For .js.erb files to be processed the same way as your .html.erb files they must be placed inside your views folder (such as app/views/<controller> or app/views/shared ), they cannot be placed in your app/assets/javascripts folder.