add shop detail in product sale

app/controllers/reports/product_sale_controller.rb

@@ -18,4 +18,10 @@ class Reports::ProductSaleController < BaseReportController
 			format.xls
 		end
   	end
+
+  	#Shop Name in Navbor
+	helper_method :shop_detail
+	def shop_detail
+		@shop = Shop.first
+	end
 end