Merge pull request #4101 from luisramos0/remove_variants_rabl

Convert spree/api/products and spree/api/variants views from rabl to AMS

app/models/spree/price_decorator.rb

@@ -4,6 +4,12 @@ module Spree
 
     private
 
+    def check_price
+      if currency.nil?
+        self.currency = Spree::Config[:currency]
+      end
+    end
+
     def refresh_products_cache
       variant.andand.refresh_products_cache
     end