CODEWITHSUNDEEP
ruby-on-rails-4erb
Khanetor
Khanetor

Reputation: 12304

Rails if_content_for does not render upon change change

I have a layout page with this block in the tag:

# application.html.erb
...
<% if content_for? :head %>
  <%= yield :head %>
<% end %>

and here is the block that is yielded:

# index.html.erb
...
<% content_for :head do %>
  <link rel="stylesheet" type="text/css" href="//cdn.datatables.net/plug-ins/be7019ee387/integration/bootstrap/3/dataTables.bootstrap.css">
  <script type="text/javascript" language="javascript" src="//cdn.datatables.net/1.10.0/js/jquery.dataTables.min.js"></script>
  <script type="text/javascript" language="javascript" src="//cdn.datatables.net/plug-ins/be7019ee387/integration/bootstrap/3/dataTables.bootstrap.js"></script>
<% end %>

If I go to the index page directly, or perform a refresh on the index page, the :head block is added to the layout. However, if I redirect to index from another page (for e.g. new.html.erb in the same controller, or a different controller) without rendering index first, the :head block is not copied over.

I would like to know why this is happening, though I suspect that this has something to do with turbo-link.

Any input is appreciated.

Upvotes: 1

Views: 29

Answers (1)

Wilson Silva
Wilson Silva

Reputation: 11395

Yes, the problem is Turbolinks. Turbolinks replaces only the body and the title in the head. The other head elements are kept intact.

If you want to load external scripts and stylesheets, you can place them on the body.

Upvotes: 1

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