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/dashboard_controller.rb

@@ -1,7 +1,7 @@
 class Origami::DashboardController < BaseOrigamiController
 
   def index
-    @shop = Shop.first
+    @shop = Shop.current_shop
     @display_type = Lookup.find_by_lookup_type("display_type")
 
     @sale_data = Array.new