What do your routes look like? If admin is a namespace, you can simply do it like this:
<%= form_for [ :admin, @post ] do |f| -%> -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.
