proper error messages

git-svn-id: http://svn.barleysodas.com/barleysodas/trunk@19 0f7b21a7-9e3a-4941-bbeb-ce5c7c368fa7

app/controllers/application.rb

@@ -1,3 +1,21 @@
 class ApplicationController < ActionController::Base
   session :session_key => '_barleysodas_session_id'
+  
+  ##
+  # Sane error and missing document messages.
+  #
+  def rescue_action_in_public(exception)
+    logger.debug("#{exception.class.name}: #{exception.to_s}")
+    exception.backtrace.each { |bt| logger.debug "! #{bt}" }
+    case exception
+      when ::ActiveRecord::RecordNotFound,
+           ::ActionController::UnknownController,
+           ::ActionController::UnknownAction,
+           ::ActionController::RoutingError
+        render :file => File.join(RAILS_ROOT, 'public/404.html'),
+          :status => '404 Not Found'
+      else
+        render :file => File.join(RAILS_ROOT, 'public/500.html'),
+          :status => '500 Error'
+    end
   end

app/controllers/beers_controller.rb

@@ -83,6 +83,7 @@ class BeersController < ApplicationController
   def get_beer_and_page
     @beer = Beer.find_by_title(Page.title_from_url(params[:id]),
       :include => [ 'page' ])
+    raise ActiveRecord::RecordNotFound.new if @beer.nil?
     @page = @beer.page
   end
 end

app/controllers/pages_controller.rb

@@ -85,5 +85,6 @@ class PagesController < ApplicationController
   
   def fetch_page
     @page = Page.find_by_title(Page.title_from_url(params[:id]))
+    raise ActiveRecord::RecordNotFound.new if @page.nil?
   end
 end