Setup to use 3.2 automatic EXPLAIN

Gemfile

@@ -1,6 +1,6 @@
 source 'http://rubygems.org'
 
-gem 'rails', '3.2.0'
+gem 'rails', '3.2.1'
 gem 'sqlite3'
 gem 'jquery-rails'
 

Gemfile.lock

@@ -1,31 +1,31 @@
 GEM
   remote: http://rubygems.org/
   specs:
-    actionmailer (3.2.0)
-      actionpack (= 3.2.0)
+    actionmailer (3.2.1)
+      actionpack (= 3.2.1)
       mail (~> 2.4.0)
-    actionpack (3.2.0)
-      activemodel (= 3.2.0)
-      activesupport (= 3.2.0)
+    actionpack (3.2.1)
+      activemodel (= 3.2.1)
+      activesupport (= 3.2.1)
       builder (~> 3.0.0)
       erubis (~> 2.7.0)
-      journey (~> 1.0.0)
+      journey (~> 1.0.1)
       rack (~> 1.4.0)
       rack-cache (~> 1.1)
       rack-test (~> 0.6.1)
       sprockets (~> 2.1.2)
-    activemodel (3.2.0)
-      activesupport (= 3.2.0)
+    activemodel (3.2.1)
+      activesupport (= 3.2.1)
       builder (~> 3.0.0)
-    activerecord (3.2.0)
-      activemodel (= 3.2.0)
-      activesupport (= 3.2.0)
+    activerecord (3.2.1)
+      activemodel (= 3.2.1)
+      activesupport (= 3.2.1)
       arel (~> 3.0.0)
       tzinfo (~> 0.3.29)
-    activeresource (3.2.0)
-      activemodel (= 3.2.0)
-      activesupport (= 3.2.0)
-    activesupport (3.2.0)
+    activeresource (3.2.1)
+      activemodel (= 3.2.1)
+      activesupport (= 3.2.1)
+    activesupport (3.2.1)
       i18n (~> 0.6)
       multi_json (~> 1.0)
     addressable (2.2.6)
@@ -40,9 +40,9 @@ GEM
       xpath (~> 0.1.4)
     childprocess (0.3.0)
       ffi (~> 1.0.6)
-    coffee-rails (3.2.1)
+    coffee-rails (3.2.2)
       coffee-script (>= 2.2.0)
-      railties (~> 3.2.0.beta)
+      railties (~> 3.2.0)
     coffee-script (2.2.0)
       coffee-script-source
       execjs
@@ -63,7 +63,7 @@ GEM
       guard (>= 0.10.0)
     hike (1.2.1)
     i18n (0.6.0)
-    journey (1.0.0)
+    journey (1.0.1)
     jquery-rails (2.0.0)
       railties (>= 3.2.0.beta, < 5.0)
       thor (~> 0.14)
@@ -85,17 +85,17 @@ GEM
       rack
     rack-test (0.6.1)
       rack (>= 1.0)
-    rails (3.2.0)
-      actionmailer (= 3.2.0)
-      actionpack (= 3.2.0)
-      activerecord (= 3.2.0)
-      activeresource (= 3.2.0)
-      activesupport (= 3.2.0)
+    rails (3.2.1)
+      actionmailer (= 3.2.1)
+      actionpack (= 3.2.1)
+      activerecord (= 3.2.1)
+      activeresource (= 3.2.1)
+      activesupport (= 3.2.1)
       bundler (~> 1.0)
-      railties (= 3.2.0)
-    railties (3.2.0)
-      actionpack (= 3.2.0)
-      activesupport (= 3.2.0)
+      railties (= 3.2.1)
+    railties (3.2.1)
+      actionpack (= 3.2.1)
+      activesupport (= 3.2.1)
       rack-ssl (~> 1.3.2)
       rake (>= 0.8.7)
       rdoc (~> 3.4)
@@ -118,11 +118,11 @@ GEM
       rspec (~> 2.8.0)
     rubyzip (0.9.5)
     sass (3.1.12)
-    sass-rails (3.2.3)
-      railties (~> 3.2.0.beta)
+    sass-rails (3.2.4)
+      railties (~> 3.2.0)
       sass (>= 3.1.10)
       tilt (~> 1.3)
-    selenium-webdriver (2.17.0)
+    selenium-webdriver (2.18.0)
       childprocess (>= 0.2.5)
       ffi (~> 1.0.9)
       multi_json (~> 1.0.4)
@@ -138,7 +138,7 @@ GEM
       polyglot
       polyglot (>= 0.3.1)
     tzinfo (0.3.31)
-    uglifier (1.2.2)
+    uglifier (1.2.3)
       execjs (>= 0.3.0)
       multi_json (>= 1.0.2)
     xpath (0.1.4)
@@ -157,7 +157,7 @@ DEPENDENCIES
   guard-rspec
   jquery-rails
   launchy
-  rails (= 3.2.0)
+  rails (= 3.2.1)
   rspec-rails
   sass-rails
   sqlite3

app/models/article.rb

@@ -15,7 +15,7 @@ def tag_list
   end
 
   def self.most_popular
-    Article.all.sort_by{|a| a.comments.count}.last
+    Article.all.sort_by{|a| a.comments.size}.last
   end
 
   def tag_list=(input)

config/environments/development.rb

@@ -27,4 +27,6 @@
 
   # Expands the lines which load the assets
   config.assets.debug = true
+
+  config.active_record.auto_explain_threshold_in_seconds = 0.2
 end

config/initializers/quiet_assets.rb

@@ -0,0 +1,11 @@
+Rails.application.assets.logger = Logger.new('/dev/null')
+Rails::Rack::Logger.class_eval do
+  def call_with_quiet_assets(env)
+    previous_level = Rails.logger.level
+    Rails.logger.level = Logger::ERROR if env['PATH_INFO'].index("/assets/") == 0
+    call_without_quiet_assets(env).tap do
+      Rails.logger.level = previous_level
+    end
+  end
+  alias_method_chain :call, :quiet_assets
+end