I'd like to write a helper thats used like this:
<%= template_info %>
which replaces code like this:
<% if RAILS_ENV == "development" %>
<div class="template_info">
Template: <%= __FILE__ %>
</div>
<% end %>
but when i write my helper it outputs the name of the helper file, not the template! Or just a string when I try to enclose it in <% %> How do i write a helper to output erb code thats then rendered as part of the calling template? is that possible?
def template_info
if RAILS_ENV == "development"
#__FILE__
#"<%= __FILE__ %>"
#content_tag("div", "<%= __FILE__ %>", :class => "template_info" )
end
end
hi, i found the answer -- method "caller"
so here's a neat little helper you also might like Parked at Loopia
Now the question is, could i get render to insert this automatically
at the end of each template (perhaps embeded in <!-- --> ) and toggle
it with an environment config variable???
## helper
def template_info( update = nil, *info )
if RAILS_ENV == "development"
info.insert(0, "Last update: " + update.to_s(:short)) if update
f = caller[0]
f = f[0,f.index(':')]
f = f.split("/").last(2).join("/")
info.insert(0, "Template: #{f}")
content_tag("div", info.join("<br />"), :class =>
"template_info" )
end
end
## template examples
<%= template_info %>
<%= template_info @page.updated_at %>
<%= template_info @page.updated_at, "by #{@page.author.name}" %>
## example html result
<div class="template_info">Template: pages/show.html.erb<br />Last
update: 31 May 16:31</div>
