Use the rails 4.2 active job

Gemfile

@@ -75,6 +75,7 @@ gem 'mini_magick'
 gem 'active_attr'
 gem 'naught'
 gem 'cancancan'
+gem 'sucker_punch'
 
 #gem 'geokit'
 gem 'iso_country_codes'

Gemfile.lock

@@ -131,6 +131,8 @@ GEM
       capybara (>= 1.0, < 3)
       colored
       launchy
+    celluloid (0.16.0)
+      timers (~> 4.0.0)
     childprocess (0.5.5)
       ffi (~> 1.0, >= 1.0.11)
     climate_control (0.0.3)
@@ -242,6 +244,7 @@ GEM
     handlebars-source (1.3.0)
     hashie (3.4.0)
     hike (1.2.3)
+    hitimes (1.2.2)
     http_parser.rb (0.6.0)
     i18n (0.7.0)
     iso_country_codes (0.6.1)
@@ -427,6 +430,8 @@ GEM
       colorize (>= 0.7.0)
       net-scp (>= 1.1.2)
       net-ssh (>= 2.8.0)
+    sucker_punch (1.4.0)
+      celluloid (~> 0.16.0)
     temple (0.7.5)
     test_squad (0.0.1)
       rails
@@ -437,6 +442,8 @@ GEM
     thor (0.19.1)
     thread_safe (0.3.4)
     tilt (1.4.1)
+    timers (4.0.1)
+      hitimes
     tinymce-rails (4.1.6)
       railties (>= 3.1.1)
     turnip (1.2.4)
@@ -526,6 +533,7 @@ DEPENDENCIES
   slim-rails
   spring
   spring-commands-rspec
+  sucker_punch
   test_squad
   thin
   turnip

app/assets/javascripts/supplier/app/templates/tables/index.emblem

@@ -25,6 +25,3 @@
     can manage tables
       a.form-action-new.new-table-button{action "newTable"}= t 'table.new_button'
     = qr-codes-link
-    a.table-qr-codes{path qr_codes_suppliers_tables} target="_blank"
-      span.qr-icon
-      = t 'table.print_qr_codes'

app/controllers/contact_forms_controller.rb

@@ -2,7 +2,7 @@ class ContactFormsController < ApplicationController
   def create
     @contact_form = Cmtool::ContactForm.new(contact_form_params)
     if @contact_form.save
-      Notifier.contact_form(@contact_form.id).deliver
+      Notifier.contact_form(@contact_form.id).deliver_later
       redirect_to root_path, notice: t('contact_form.submitted')
     else
       redirect_to go_to_path('contact', locale: I18n.locale), alert: @contact_form.errors.full_messages.join(', ')

app/models/supplier.rb

@@ -185,7 +185,7 @@ class Supplier
   end
 
   def send_creation_notifications
-    SupplierMailer.creation(self).deliver_now
+    SupplierMailer.creation(self).deliver_later
   end
 
   private

config/initializers/queue.rb

@@ -0,0 +1,3 @@
+Rails.application.configure do
+  config.active_job.queue_adapter = :sucker_punch
+end