Fix the Product to ProductView mapping

common.props

@@ -1,7 +1,7 @@
 <Project>
   <PropertyGroup>
     <LangVersion>latest</LangVersion>
-    <Version>4.0.0-preview.2</Version>
+    <Version>4.0.0-preview.3</Version>
     <NoWarn>$(NoWarn);CS1591</NoWarn>
     <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
     <Authors>EasyAbp Team</Authors>

modules/EasyAbp.EShop.Products/src/EasyAbp.EShop.Products.Application/EasyAbp/EShop/Products/Products/ProductViewAppService.cs

@@ -128,6 +128,8 @@ namespace EasyAbp.EShop.Products.Products
             foreach (var product in products)
             {
                 var productView = ObjectMapper.Map<Product, ProductView>(product);
+                productView.ProductDiscounts ??= new List<ProductDiscountInfoModel>();
+                productView.OrderDiscountPreviews ??= new List<OrderDiscountPreviewInfoModel>();
 
                 await FillPriceInfoWithRealPriceAsync(product, productView, now);
 

modules/EasyAbp.EShop.Products/src/EasyAbp.EShop.Products.Domain/EasyAbp/EShop/Products/Products/ProductView.cs

@@ -43,9 +43,9 @@ namespace EasyAbp.EShop.Products.Products
 
         public virtual string ProductGroupDisplayName { get; protected set; }
 
-        public virtual List<ProductDiscountInfoModel> ProductDiscounts { get; protected set; }
+        public virtual List<ProductDiscountInfoModel> ProductDiscounts { get; set; }
 
-        public virtual List<OrderDiscountPreviewInfoModel> OrderDiscountPreviews { get; protected set; }
+        public virtual List<OrderDiscountPreviewInfoModel> OrderDiscountPreviews { get; set; }
 
         public virtual decimal? MinimumPrice { get; protected set; }