Rails Ajax Javascript render partial with collection shows nothing

Question

In my index.html.erb file I have:

<table>
  <thead>
    <tr>
      <th>Title</th>
      <th>Note</th>
      <th colspan="2"></th>
    </tr>
  </thead>

  <tbody id="avail-courses">
    <%= render partial: 'avail_course', collection: @courses %>
  </tbody>
</table>

Which basically render a partial _avail_course.html.erb.

I am trying to make this render through an ajax call, so I made my javascript file enroll.js.erb as:

$('#avail-courses').html("<%= escape_javascript render partial: 'avail_course', collection: @courses %>");

The ajax call is successfully made, but the render returns nothing, thus making my table with id #avail-courses blank.

Am I missing something here? I suspect that, in js file, I cannot pass in a collection directly.

For completeness, my partial _avail_course.html.erb is:

<tr>
  <td><%= avail_course.title %></td>
  <td><%= avail_course.note %></td>
  <td><%= link_to 'Info', 'course_list/info/' + avail_course.id.to_s %></td>
  <td><%= button_to 'Enroll', 'course_list/enroll/' + avail_course.id.to_s, method: :put, remote: true %></td>
</tr>

Any input is appreciated.

if I am not wrong then you miss spelled `_avail_courses.html.erb` but you are rendering `avail_course`. — Sourabh Upadhyay, Jun 24 '14 at 15:50
It was a miss spelled. But my file names in my code are correct. Thanks for pointing that out. — Khanetor, Jun 24 '14 at 15:55

score 0 · Answer 1 · answered Jun 24 '14 at 15:53

0

Please check your partial name <%= render partial: 'avail_course', collection: @courses %> but your above you have written Which basically render a partial _avail_courses.html.erb.. So check again your spellings.

answered Jun 24 '14 at 15:53

Sourabh Upadhyay

1,034
11
31

It was a typo when I was typing up this question. All is fixed now. – Khanetor Jun 24 '14 at 15:57

score 0 · Accepted Answer · answered Jun 24 '14 at 16:45

0

I found out the issue. It was because @courses has not been defined in the controller. In a normal format.html response, the redirect_to takes care of @courses, but I forgot that a format.js does not invoke another controller.

answered Jun 24 '14 at 16:45

Khanetor

11,595
8
40
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Rails Ajax Javascript render partial with collection shows nothing

2 Answers2