upgrade(rails 5): add application record

app/models/analytics.rb

@@ -1,4 +1,4 @@
-class Analytics < ActiveRecord::Base
+class Analytics < ApplicationRecord
   scope :hits_by_ip, ->(ip,col="*") { select("#{col}").where(:ip_address => ip).order("id DESC")}
 
   def self.count_by_col(col)

app/models/application_record.rb

@@ -0,0 +1,3 @@
+class ApplicationRecord < ActiveRecord::Base
+  self.abstract_class = true
+end

app/models/benefits.rb

@@ -1,4 +1,4 @@
-class Benefits < ActiveRecord::Base
+class Benefits < ApplicationRecord
 
   def self.save(file, backup=false)
     data_path = Rails.root.join("public", "data")

app/models/key_management.rb

@@ -1,4 +1,4 @@
-class KeyManagement < ActiveRecord::Base
+class KeyManagement < ApplicationRecord
   belongs_to :work_info
   belongs_to :user
 end

app/models/message.rb

@@ -1,4 +1,4 @@
-class Message < ActiveRecord::Base
+class Message < ApplicationRecord
   belongs_to :user
   validates_presence_of :creator_id, :receiver_id, :message
 

app/models/paid_time_off.rb

@@ -1,4 +1,4 @@
-class PaidTimeOff < ActiveRecord::Base
+class PaidTimeOff < ApplicationRecord
   belongs_to :user
   has_many :schedule, :foreign_key => :user_id, :primary_key => :user_id, :dependent => :destroy
 

app/models/pay.rb

@@ -1,4 +1,4 @@
-class Pay < ActiveRecord::Base
+class Pay < ApplicationRecord
   # Associations
   belongs_to :user
 

app/models/performance.rb

@@ -1,4 +1,4 @@
-class Performance < ActiveRecord::Base
+class Performance < ApplicationRecord
   belongs_to :user
 
   def reviewer_name

app/models/retirement.rb

@@ -1,3 +1,3 @@
-class Retirement < ActiveRecord::Base
+class Retirement < ApplicationRecord
   belongs_to :user
 end

app/models/schedule.rb

@@ -1,4 +1,4 @@
-class Schedule < ActiveRecord::Base
+class Schedule < ApplicationRecord
   belongs_to :paid_time_off
 
   validates_presence_of :date_begin, :date_end, :event_desc, :event_name, :event_type

app/models/user.rb

@@ -1,6 +1,6 @@
 require 'encryption'
 
-class User < ActiveRecord::Base
+class User < ApplicationRecord
   validates :password, :presence => true,
                        :confirmation => true,
                        :length => {:within => 6..40},

app/models/work_info.rb

@@ -1,4 +1,4 @@
-class WorkInfo < ActiveRecord::Base
+class WorkInfo < ApplicationRecord
   belongs_to :user
   has_one :key_management, :foreign_key => :user_id, :primary_key => :user_id, :dependent => :destroy
   #before_save :encrypt_ssn