Experiment: Make Writebook multi-tenant using Active Record Tenanted

Gemfile

@@ -6,6 +6,7 @@ gem "rails", github: "rails/rails"
 
 # Drivers
 gem "sqlite3", "~> 2.5"
+gem "activerecord-tenanted", github: "basecamp/activerecord-tenanted"
 gem "redis", ">= 4.0.1"
 
 # Deployment

Gemfile.lock

@@ -1,3 +1,12 @@
+GIT
+  remote: https://github.com/basecamp/activerecord-tenanted.git
+  revision: 30a888a1c890f180f7a1a92b7743c19e344536f3
+  specs:
+    activerecord-tenanted (0.6.0)
+      activerecord (>= 8.1.beta)
+      railties (>= 8.1.beta)
+      zeitwerk
+
 GIT
   remote: https://github.com/basecamp/useragent.git
   revision: 433ca320a42db1266c4b89df74d0abdb9a880c5e
@@ -375,6 +384,7 @@ PLATFORMS
   x86_64-linux
 
 DEPENDENCIES
+  activerecord-tenanted!
   bcrypt (~> 3.1.7)
   brakeman
   capybara

app/models/application_record.rb

@@ -1,3 +1,4 @@
 class ApplicationRecord < ActiveRecord::Base
   primary_abstract_class
+  tenanted
 end

bin/dev

@@ -1,5 +1,5 @@
 #!/usr/bin/env sh
 
-echo "Starting Writebook on http://localhost:3007"
+echo "Starting Writebook on http://writebook.localhost:3007"
 
 exec ./bin/rails server -p 3007

config/database.yml

@@ -7,14 +7,17 @@ default: &default
 development:
   primary:
     <<: *default
-    database: storage/db/development.sqlite3
+    database: storage/tenants/%{tenant}/db/development.sqlite3
+    tenanted: true
 
 test:
   primary:
     <<: *default
-    database: storage/db/test.sqlite3
+    database: storage/tenants/%{tenant}/db/test.sqlite3
+    tenanted: true
 
 production:
   primary:
     <<: *default
-    database: storage/db/production.sqlite3
+    database: storage/tenants/%{tenant}/db/production.sqlite3
+    tenanted: true

config/environments/development.rb

@@ -3,6 +3,9 @@
 Rails.application.configure do
   # Settings specified here will take precedence over those in config/application.rb.
 
+  # Allow tenant subdomains in development
+  config.hosts << /.*\.writebook\.localhost/
+
   # In the development environment your application's code is reloaded any time
   # it changes. This slows down response time but is perfect for development
   # since you don't have to restart the web server when you make code changes.