From 2067fff9e38df4e37bdbfc021cd6bb0c2d393a2a Mon Sep 17 00:00:00 2001
From: Genadi Samokovarov <gsamokovarov@gmail.com>
Date: Sat, 12 Dec 2015 14:25:00 +0100
Subject: Introduce ApplicationRecord, an Active Record layer supertype

It's pretty common for folks to monkey patch `ActiveRecord::Base` to
work around an issue or introduce extra functionality. Instead of
shoving even more stuff in `ActiveRecord::Base`, `ApplicationRecord` can
hold all those custom work the apps may need.

Now, we don't wanna encourage all of the application models to inherit
from `ActiveRecord::Base`, but we can encourage all the models that do,
to inherit from `ApplicationRecord`.

Newly generated applications have `app/models/application_record.rb`
present by default. The model generators are smart enough to recognize
that newly generated models have to inherit from `ApplicationRecord`,
but only if it's present.
---
 guides/source/active_record_postgresql.md | 30 +++++++++++++++---------------
 1 file changed, 15 insertions(+), 15 deletions(-)

(limited to 'guides/source/active_record_postgresql.md')

diff --git a/guides/source/active_record_postgresql.md b/guides/source/active_record_postgresql.md
index 742db7be32..b592209d4b 100644
--- a/guides/source/active_record_postgresql.md
+++ b/guides/source/active_record_postgresql.md
@@ -39,7 +39,7 @@ create_table :documents do |t|
 end
 
 # app/models/document.rb
-class Document < ActiveRecord::Base
+class Document < ApplicationRecord
 end
 
 # Usage
@@ -63,7 +63,7 @@ add_index :books, :tags, using: 'gin'
 add_index :books, :ratings, using: 'gin'
 
 # app/models/book.rb
-class Book < ActiveRecord::Base
+class Book < ApplicationRecord
 end
 
 # Usage
@@ -97,7 +97,7 @@ ActiveRecord::Schema.define do
 end
 
 # app/models/profile.rb
-class Profile < ActiveRecord::Base
+class Profile < ApplicationRecord
 end
 
 # Usage
@@ -122,7 +122,7 @@ create_table :events do |t|
 end
 
 # app/models/event.rb
-class Event < ActiveRecord::Base
+class Event < ApplicationRecord
 end
 
 # Usage
@@ -150,7 +150,7 @@ create_table :events do |t|
 end
 
 # app/models/event.rb
-class Event < ActiveRecord::Base
+class Event < ApplicationRecord
 end
 
 # Usage
@@ -200,7 +200,7 @@ create_table :contacts do |t|
 end
 
 # app/models/contact.rb
-class Contact < ActiveRecord::Base
+class Contact < ApplicationRecord
 end
 
 # Usage
@@ -239,7 +239,7 @@ def down
 end
 
 # app/models/article.rb
-class Article < ActiveRecord::Base
+class Article < ApplicationRecord
 end
 
 # Usage
@@ -294,7 +294,7 @@ create_table :revisions do |t|
 end
 
 # app/models/revision.rb
-class Revision < ActiveRecord::Base
+class Revision < ApplicationRecord
 end
 
 # Usage
@@ -317,12 +317,12 @@ create_table :comments, id: :uuid, default: 'gen_random_uuid()' do |t|
 end
 
 # app/models/post.rb
-class Post < ActiveRecord::Base
+class Post < ApplicationRecord
   has_many :comments
 end
 
 # app/models/comment.rb
-class Comment < ActiveRecord::Base
+class Comment < ApplicationRecord
   belongs_to :post
 end
 ```
@@ -341,7 +341,7 @@ create_table :users, force: true do |t|
 end
 
 # app/models/device.rb
-class User < ActiveRecord::Base
+class User < ApplicationRecord
 end
 
 # Usage
@@ -370,7 +370,7 @@ create_table(:devices, force: true) do |t|
 end
 
 # app/models/device.rb
-class Device < ActiveRecord::Base
+class Device < ApplicationRecord
 end
 
 # Usage
@@ -410,7 +410,7 @@ create_table :devices, id: :uuid, default: 'gen_random_uuid()' do |t|
 end
 
 # app/models/device.rb
-class Device < ActiveRecord::Base
+class Device < ApplicationRecord
 end
 
 # Usage
@@ -434,7 +434,7 @@ end
 execute "CREATE INDEX documents_idx ON documents USING gin(to_tsvector('english', title || ' ' || body));"
 
 # app/models/document.rb
-class Document < ActiveRecord::Base
+class Document < ApplicationRecord
 end
 
 # Usage
@@ -484,7 +484,7 @@ CREATE VIEW articles AS
   SQL
 
 # app/models/article.rb
-class Article < ActiveRecord::Base
+class Article < ApplicationRecord
   self.primary_key = "id"
   def archive!
     update_attribute :archived, true
-- 
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