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/models/shop.rb

@@ -1,13 +1,17 @@
 class Shop < ApplicationRecord
-	#ShopDetail = Shop.find_by_id(1)
+	#ShopDetail = Shop.current_shop
 
 	# Shop Image Uploader
-  	mount_uploader :logo, ShopImageUploader
+	mount_uploader :logo, ShopImageUploader
 
-  	has_many :display_images
+	has_many :display_images
  	accepts_nested_attributes_for :display_images
 
  	def file_data=(input_data)
 	    self.data = input_data.read
 	end
+
+  def self.current_shop
+    ActsAsTenant.current_tenant
+  end
 end