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 details: https://github.com/ErwinM/acts_as_tenant

app/controllers/origami/paypar_payments_controller.rb

@@ -7,7 +7,7 @@ class Origami::PayparPaymentsController < BaseOrigamiController
 		payment_method = "paypar"
 		if(Sale.exists?(sale_id))
 			saleObj = Sale.find(sale_id)
-			shop_details =  Shop.first 
+			shop_details =  Shop.current_shop 
       
 			# rounding adjustment
 				if shop_details.is_rounding_adj