Devise Troubles

I have been trying to create a rails 3.1.3 app using devise and have started customizing devise to fit my needs. However, I have run into a problem when a user edits their information. These two forms are being rendered in a users show page. I have added this code to the user controller helper: def resource_name     :user   end   def resource     @resource || @user ||=   end   def devise_mapping     @devise_mapping ||= Devise.mappings[:user]   end

And also added:   protected     def after_sign_in_path_for(resource)       user_path(resource)     end to the application controller in order to get the right redirect needed after a user signs in.

This allowed me to render devise forms in other parts of my site, like sign up, sign in, etc. What happens each time I try to edit a users info is I get the error, "Couldn't find User without ID", on the redirect back to user show page. I know this is happening because for whatever reason the controller no longer knows what user is signed in. Checking the logs shows that the information is updated in my database correctly and upon going back to the user show page manually and refreshing it updates the information and says it was done successfully. Can anyone help point me in the right direction or let me know what I am missing? Thanks for any help.