Routes generated paths have stopped working - path

Question

I'm creating a blog using Rails 3.2.5 and have been using link_to's to each action using the resource paths generated by Routes (i.e. for my code_entries: code_entries_path, new_code_entry_path, etc.) throughout the site. All of a sudden whenever I try to access a page I get this error:
undefined local variable or method `controller' for #<CodeEntriesController:0x007f887f8b3300>
This error is from my index action on my code_entries_controller.rb, but no matter which action I try to go to in any controller I get this error on every link_to with a Routes resource path. It was working fine before and I'm not sure what would have caused this.
Since this question is in the context of my code_entries, here is the code for code_entries_controller.rb, /code_entries/index.html.haml, routes.rb and the error I've been getting but in the context of the action code_entries#index:
code_entries_controller.rb
class CodeEntriesController < ApplicationController
before_filter :authenticate_action
def index
#entries = CodeEntry.order("created_at desc")
end
def new
#entry = CodeEntry.new
end
def show
#entry = CodeEntry.find_by_id(params[:id])
end
def create
#entry = CodeEntry.new(params[:code_entry])
if #entry.save
redirect_to code_entry_path(#entry), :notice => "#{#entry.title} has been created"
else
puts #entry.errors.messages.inspect
render "new"
end
end
def edit
#entry = CodeEntry.find_by_id(params[:id])
end
def update
#entry = CodeEntry.find_by_id(params[:id])
if #entry.update_attributes(params[:code_entry])
redirect_to code_entry_path(#entry), :notice => "#{#entry.title} has been updated"
else
puts #entry.errors.messages.inspect
render "edit"
end
end
def destroy
#entry = CodeEntry.find_by_id(params[:id])
#entry.destroy
redirect_to code_entries_path, :notice => "#{#entry.title} has been deleted"
end
end
/code_entries/index.html.haml
%h1 Hello!
%br
- #entries.each do |e|
%h2= link_to e.title, code_entry_path(e)
%h3= e.updated_at
= raw excerpt(e, 200)
%br
- if current_user
= link_to "Edit", edit_code_entry_path(e)
= button_to "Delete", code_entry_path(e), :confirm => "Really really?", :method => :delete
%hr
routes.rb
Blog::Application.routes.draw do
resources :users
resources :code_entries
resources :food_entries
resources :inclusive_entries
resources :sessions
root :to => "home#index"
get "login" => "sessions#new", :as => "login"
get "logout" => "sessions#destroy", :as => "logout"
get "users/new"
end
NameError in Code_entries#index
Showing /Users/kyle/Projects/blog/app/views/code_entries/index.html.haml where line #4 raised:
undefined local variable or method `controller' for #<CodeEntriesController:0x007f887f813418>
Extracted source (around line #4):
1: %h1 Hello!
2: %br
3: - #entries.each do |e|
4: %h2= link_to e.title, code_entry_path(e)
5: %h3= e.updated_at
6: = raw excerpt(e, 200)
7: %br
Rails.root: /Users/kyle/Projects/blog
Application Trace | Framework Trace | Full Trace
app/views/code_entries/index.html.haml:4:in `block in _app_views_code_entries_index_html_haml___3334012984247114074_70112115764360'
app/views/code_entries/index.html.haml:3:in `_app_views_code_entries_index_html_haml___3334012984247114074_70112115764360'
Request
Parameters:
None
Show session dump
Show env dump
Response
Headers:
None

Answer 1

I had made a method inside of application_controller.rb and used it as an argument with helper_method. Since it was inside of application_controller.rb and not application_helper.rb I had used the tag include ActionView::Helpers::UrlHelper so I could use a link_to inside the helper method. Somehow that include statement was making it blow up, but once I removed the include statement and moved the helper method into application_helper.rb everything turned out fine!