added bullet for finding database optimizations

Gemfile

@@ -128,4 +128,7 @@ group :development, :test do
 
   # For code review
   gem 'simplecov', '~> 0.9.1', :require => false
+
+  # for finding database optimizations
+  gem 'bullet', '~> 4.14.0'
 end

Gemfile.lock

@@ -37,6 +37,9 @@ GEM
     bootstrap-sass (3.2.0.2)
       sass (~> 3.2)
     builder (3.2.2)
+    bullet (4.14.0)
+      activesupport (>= 3.0.0)
+      uniform_notifier (>= 1.6.0)
     cancan (1.6.10)
     capybara (2.4.1)
       mime-types (>= 1.16)
@@ -267,6 +270,7 @@ GEM
       kgio (~> 2.6)
       rack
       raindrops (~> 0.7)
+    uniform_notifier (1.6.2)
     uuidtools (2.1.5)
     warden (1.2.3)
       rack (>= 1.0)
@@ -284,6 +288,7 @@ PLATFORMS
 
 DEPENDENCIES
   bootstrap-sass (~> 3.2.0.1)
+  bullet (~> 4.14.0)
   cancan (~> 1.6.10)
   capybara (~> 2.4.1)
   coffee-rails (~> 4.0.0)

config/environments/development.rb

@@ -36,4 +36,13 @@ Rails.application.configure do
   # config.action_view.raise_on_missing_translations = true
 
   config.action_mailer.default_url_options = { host: 'localhost', port: 3000 }
+
+  # for finding database optimization
+  config.after_initialize do
+    Bullet.enable = true
+    Bullet.bullet_logger = true
+    Bullet.console = true
+    Bullet.rails_logger = true
+    Bullet.add_footer = true
+  end
 end

config/environments/test.rb

@@ -36,4 +36,11 @@ Rails.application.configure do
 
   # Raises error for missing translations
   # config.action_view.raise_on_missing_translations = true
+
+  # for finding database optimization
+  config.after_initialize do
+    Bullet.enable = true
+    Bullet.bullet_logger = true
+    Bullet.raise = true # raise an error if n+1 query occurs
+  end
 end