增加复制商品功能

app/models/product.rb

@@ -28,7 +28,7 @@ class Product < ActiveRecord::Base
     COLOR_ENUM =  []
     def get_size_enum
         SIZE_ENUM.clear
-        if SIZE_ENUM.length ==0
+        if SIZE_ENUM.length ==0 && self.relate_product_id>0
             linkSize = ProductAttrConfig.where("product_id=? and size_type='size'",self.relate_product_id).first
             if !linkSize.blank?
                 productAttrs = ProductAttr.where("attr_key_id=?",linkSize.attr_key_id).order("recommend desc")
@@ -40,7 +40,7 @@ class Product < ActiveRecord::Base
         end
 
         COLOR_ENUM.clear
-        if COLOR_ENUM.length==0
+        if COLOR_ENUM.length==0 && self.relate_product_id>0
             linkColor = ProductAttrConfig.where("product_id=? and size_type='color'",self.relate_product_id).first
             if !linkColor.blank?
                 productColorAttrs = ProductAttr.where("attr_key_id=?",linkColor.attr_key_id).order("recommend desc")