add_product メソッドを改良

数量を考慮
kyanny · Jan 20, 2010 · c353084 · c353084
1 parent 75b7270
commit c353084
Showing 1 changed file with 6 additions and 1 deletion.
diff --git a/depot/app/models/cart.rb b/depot/app/models/cart.rb
@@ -6,6 +6,11 @@ def initialize
     end
 
     def add_product (product)
-        @items << product
+        current_item = @items.find { |item| item.product == product }
+        if current_item
+            current_item.increment_quantity
+        else
+            @items << CartItem.new(product)
+        end
     end
 end