module ActionView::Helpers::CacheHelper

<% end %>
<%= project_name_with_time(project) %>
<% cache project do %>
# Which will then raise if used within a +cache+ block:

end
"#{project.name} - #{Time.now}"
uncacheable!
def project_name_with_time(project)

Useful to denote helper methods that can't participate in fragment caching:

Raises +UncacheableFragmentError+ when called from within a +cache+ block.

def uncacheable!
  raise UncacheableFragmentError, "can't be fragment cached" if caching?
end