Rails check if yield :area is defined in content_for

Question

I want to do a conditional rendering at the layout level based on the actual template has defined content_for(:an__area), any idea how to get this done?

Answer 1

not really necessary to create a helper method:

<% if @content_for_sidebar %>
  

    <%= yield :sidebar %>
  
<% end %>

then of course in your view:

<% content_for :sidebar do %>
  ...
<% end %>

I use this all the time to conditionally go between a one column and two column layout