CharlesMaxWood

Have you ever wished you could call yield multiple times in the same layout in order to get extra stylesheets, javascript, or a dynamic sidebar? Having worked on several projects that needed this soft of functionality, I’ve probably built this in three or four times. Then I started watching railscasts.

There’s a method called content_for that provides this functionality. All you have to do is call content for in your view. Here’s the erb markup:

<% content_for :head do %>
  <%= stylesheet_link_tag :my_style %>
<% end %>

Then, in your layout all you have to do is call yield like you normally would in your layout with on small difference. Here’s the erb markup.

1

<%= yield :head %>

I picked up this tip from Ryan Bates Railscast Episode #8

content_for, erb, layout, Ruby on Rails, views, yield