Single database for multiple shops

Use ActsAsTenant as Multi-tenancy for shops

See below files:
- app/controllers/concern/multi_tenancy.rb
- app/models/application_record.rb
- app/models/shop.rb

An initializer can be created to control option in ActsAsTenant.

config/initializers/acts_as_tenant.rb
require 'acts_as_tenant/sidekiq'

ActsAsTenant.configure do |config|
  config.require_tenant = false # true
end

more detail: https://github.com/ErwinM/acts_as_tenant

app/controllers/base_report_controller.rb

@@ -1,5 +1,5 @@
 class BaseReportController < ActionController::Base
-  include LoginVerification
+  include LoginVerification, MultiTenancy
 	layout "application"
 
 	before_action :check_user
@@ -69,7 +69,7 @@ class BaseReportController < ActionController::Base
 
     from = from.beginning_of_day
     to = to.end_of_day
-    
+
     return from, to
 	end