Upgrade to Rails 5

Update config with rails app:update
Update schema.rb rails db:migrate
Add puma
Make jobs and models inherit from ApplicationJob and ApplicationRecord
Update acts_as_list to 0.9.7 in order to fix
"undefined method `sanitize_sql_hash_for_conditions'" error
Update web-console to 2.3.0 to fix a 500 internal server error
Replace before_filter with before_action
Add rails-controller-testing gem
Add prepend: :true to protect_from_forgery in ApplicationController to
avoid ActionController::InvalidAuthenticityToken exceptions
Remove activeuuid
Update formtastic to 3.1.5 to fix deprecation warnings and issues
with the Input class
Update ahoy_matey to 1.6.0
Update cancancan to 2.0.0 to fix issues with malformed sql queries
Fix program spec
Fix issue with the picture being nil in admin/Organizations#new and #edit
and Organizations#show
Fix ActiveRecord::Base.raise_in_transactional_callbacks= deprecation
warning by removing an unnecessary line in application.rb
Fix failing versions specs

app/controllers/admin/base_controller.rb

@@ -1,6 +1,6 @@
 module Admin
   class BaseController < ApplicationController
-    before_filter :verify_user_admin
+    before_action :verify_user_admin
 
     private
 

app/controllers/admin/registrations_controller.rb

@@ -2,7 +2,7 @@ module Admin
   class RegistrationsController < Admin::BaseController
     load_and_authorize_resource :conference, find_by: :short_title
     load_and_authorize_resource :registration, through: :conference
-    before_filter :set_user, except: [:index]
+    before_action :set_user, except: [:index]
 
     def index
       authorize! :show, Registration.new(conference_id: @conference.id)

app/controllers/application_controller.rb

@@ -1,10 +1,10 @@
 class ApplicationController < ActionController::Base
-  before_filter :set_paper_trail_whodunnit
+  before_action :set_paper_trail_whodunnit
   include ApplicationHelper
   add_flash_types :error
-  protect_from_forgery with: :exception
-  before_filter :get_conferences
-  before_filter :store_location
+  protect_from_forgery with: :exception, prepend: true
+  before_action :get_conferences
+  before_action :store_location
   # Ensure every controller authorizes resource or skips authorization (skip_authorization_check)
   check_authorization unless: :devise_controller?
 

app/controllers/conference_registrations_controller.rb

@@ -1,5 +1,5 @@
 class ConferenceRegistrationsController < ApplicationController
-  before_filter :authenticate_user!, except: [:new, :create]
+  before_action :authenticate_user!, except: [:new, :create]
   load_resource :conference, find_by: :short_title
   authorize_resource :conference_registrations, class: Registration, except: [:new, :create]
   before_action :set_registration, only: [:edit, :update, :destroy, :show]

app/controllers/subscriptions_controller.rb

@@ -1,5 +1,5 @@
 class SubscriptionsController < ApplicationController
-  before_filter :authenticate_user!
+  before_action :authenticate_user!
   load_resource :conference, find_by: :short_title
   load_and_authorize_resource only: [:create, :destroy], through: :conference
 

app/controllers/ticket_purchases_controller.rb

@@ -1,5 +1,5 @@
 class TicketPurchasesController < ApplicationController
-  before_filter :authenticate_user!
+  before_action :authenticate_user!
   load_resource :conference, find_by: :short_title
   authorize_resource :conference_registrations, class: Registration
   authorize_resource

app/controllers/tickets_controller.rb

@@ -1,9 +1,9 @@
 class TicketsController < ApplicationController
-  before_filter :authenticate_user!
+  before_action :authenticate_user!
   load_resource :conference, find_by: :short_title
   load_resource :ticket, through: :conference
   authorize_resource :conference_registrations, class: Registration
-  before_filter :check_load_resource, only: :index
+  before_action :check_load_resource, only: :index
 
   def index; end