Bundle update and ApplicationRecord as required in rails 5.1+

.rubocop.yml

@@ -7,7 +7,3 @@ BlockLength:
     - config/routes.rb
 Rails/HttpPositionalArguments:
   Enabled: false
-# https://github.com/bbatsov/rubocop/issues/4189
-# TODO remove once rubocopy has changed beyond 0.48.1
-Lint/AmbiguousBlockAssociation:
-  Enabled: false

Gemfile.lock

@@ -1,6 +1,6 @@
 GIT
   remote: git://github.com/activeadmin/activeadmin.git
-  revision: 8f7f58016802cd5a7f663fbc80b90b884252f939
+  revision: d941aaa88c6e9011f7e9d1c7d85b2cd871160f0f
   specs:
     activeadmin (1.0.0)
       arbre (>= 1.1.1)
@@ -72,8 +72,8 @@ GEM
       minitest (~> 5.1)
       thread_safe (~> 0.3, >= 0.3.4)
       tzinfo (~> 1.1)
-    acts-as-taggable-on (4.0.0)
+    acts-as-taggable-on (5.0.0)
-      activerecord (>= 4.0)
+      activerecord (>= 4.2.8)
     addressable (2.5.1)
       public_suffix (~> 2.0, >= 2.0.2)
     arbre (1.1.1)
@@ -92,9 +92,9 @@ GEM
       thor (~> 0.18)
     byebug (9.0.6)
     coderay (1.1.1)
-    coffee-rails (4.2.1)
+    coffee-rails (4.2.2)
       coffee-script (>= 2.2.0)
-      railties (>= 4.0.0, < 5.2.x)
+      railties (>= 4.0.0)
     coffee-script (2.4.1)
       coffee-script-source
       execjs
@@ -268,6 +268,7 @@ GEM
     paper_trail (7.0.2)
       activerecord (>= 4.0, < 5.2)
       request_store (~> 1.1)
+    parallel (1.11.2)
     parser (2.4.0.0)
       ast (~> 2.2)
     piwik_analytics (1.0.2)
@@ -338,7 +339,8 @@ GEM
     responders (2.4.0)
       actionpack (>= 4.2.0, < 5.3)
       railties (>= 4.2.0, < 5.3)
-    rubocop (0.48.1)
+    rubocop (0.49.0)
+      parallel (~> 1.10)
       parser (>= 2.3.3.1, < 3.0)
       powerpack (~> 0.1)
       rainbow (>= 1.99.1, < 3.0)
@@ -389,7 +391,7 @@ GEM
     thor (0.19.4)
     thread_safe (0.3.6)
     tilt (2.0.7)
-    tinymce-rails (4.6.1)
+    tinymce-rails (4.6.2)
       railties (>= 3.1.1)
     tinymce-rails-langs (4.20160310)
       tinymce-rails (~> 4.1, >= 4.1.10)

app/models/admin_user.rb

@@ -1,5 +1,5 @@
 # The new agenda moderators, from active_admin
-class AdminUser < ActiveRecord::Base
+class AdminUser < ApplicationRecord
   # Include default devise modules. Others available are:
   # :confirmable, :lockable, :timeoutable and :omniauthable
   devise :database_authenticatable,

app/models/application_record.rb

@@ -0,0 +1,4 @@
+# Base domain class
+class ApplicationRecord < ActiveRecord::Base
+  self.abstract_class = true
+end

app/models/city.rb

@@ -2,7 +2,7 @@
 #
 # It is mainly used to manage coordinates
 #
-class City < ActiveRecord::Base
+class City < ApplicationRecord
   has_many :events, foreign_key: :city, primary_key: :name
   has_many :orgas, foreign_key: :city, primary_key: :name
 end

app/models/event.rb

@@ -1,7 +1,7 @@
 require 'schedule'
 
 # This is the central ADL class, where are managed all events
-class Event < ActiveRecord::Base
+class Event < ApplicationRecord
   extend SimpleCalendar
   include Schedule
   acts_as_taggable

app/models/kind.rb

@@ -1,4 +1,4 @@
 # Gives the possibility to organise organisations! :)
-class Kind < ActiveRecord::Base
+class Kind < ApplicationRecord
   has_many :orgas
 end

app/models/note.rb

@@ -1,5 +1,5 @@
 # Manages data related to events' moderation
-class Note < ActiveRecord::Base
+class Note < ApplicationRecord
   belongs_to :event
   belongs_to :author, class_name: User
 

app/models/orga.rb

@@ -1,5 +1,5 @@
 # Organisations related to this agenda
-class Orga < ActiveRecord::Base
+class Orga < ApplicationRecord
   acts_as_taggable
   strip_attributes
   has_paper_trail ignore: %i[last_updated secret submitter decision_time

app/models/region.rb

@@ -1,5 +1,5 @@
 # This is mostly to group events around a region
-class Region < ActiveRecord::Base
+class Region < ApplicationRecord
   belongs_to :region
   has_many :regions
 

app/models/user.rb

@@ -2,7 +2,7 @@ require 'digest/md5'
 
 # Moderators, but using a failed pwd mechanism
 # TODO, migrate to full active_admin
-class User < ActiveRecord::Base
+class User < ApplicationRecord
   # Include default devise modules. Others available are:
   # :confirmable, :lockable, :timeoutable and :omniauthable
   devise :database_authenticatable, authentication_keys: [:login]