我正在尝试将源子集合映射到有效的目标子集合。但是我还需要在子集合上映射一些基本属性。我尝试了IncludeMembers,但没有运气。我想找到一些将两种类型映射为一种的示例,但这似乎不适用于我的情况,因为当我的所有嵌套在同一对象中时,大多数示例都将两种不同类型的实例转换为一种。
我准备了一个单元测试来显示我的问题:
对象
public class FlatProduct
{
public string Sku { get; set; }
public int BrandId { get; set; }
public int CategoryId { get; set; }
public int ProductVersionId { get; set; }
public int PriceLevelId { get; set; }
public decimal Price { get; set; }
public decimal RebatePrice { get; set; }
public List<FlatProductInventory> FlatProductInventory { get; set; }
}
public class FlatProductInventory
{
public int StockedLocationId { get; set; }
public int StockedQty { get; set; }
}
public class Product
{
public string Sku { get; set; }
public int BrandId { get; set; }
public int CategoryId { get; set; }
public ProductVersion ProductVersion { get; set; }
}
public class ProductVersion
{
public string Sku { get; set; }
public int BrandId { get; set; }
public int CategoryId { get; set; }
public int ProductVersionId { get; set; }
public ProductPrice ProductPrice { get; set; }
public List<ProductInventory> ProductInventory { get; set; }
}
public class ProductPrice
{
public string Sku { get; set; }
public int BrandId { get; set; }
public int CategoryId { get; set; }
public int ProductVersionId { get; set; }
public int PriceLevelId { get; set; }
public decimal Price { get; set; }
public decimal RebatePrice { get; set; }
}
public class ProductInventory
{
public string Sku { get; set; }
public int BrandId { get; set; }
public int CategoryId { get; set; }
public int ProductVersionId { get; set; }
public int StockedLocationId { get; set; }
public int StockedQty { get; set; }
}
映射/测试
public static void TestMapper()
{
var config = new MapperConfiguration(cfg => {
cfg.CreateMap<FlatProduct, ProductPrice>();
cfg.CreateMap<FlatProduct, ProductVersion>();
cfg.CreateMap<FlatProduct, ProductInventory>();
cfg.CreateMap<FlatProductInventory, ProductInventory>();
cfg.CreateMap<FlatProduct, ProductVersion>()
.ForMember(productVersion => productVersion.ProductPrice, flatProduct => flatProduct.MapFrom(fp => fp))
.ForMember(productVersion => productVersion.ProductInventory, flatProduct => flatProduct.MapFrom(fp => fp))
.ForMember(productVersion => productVersion.ProductInventory, flatProduct => flatProduct.MapFrom(fp => fp.FlatProductInventory));
cfg.CreateMap<FlatProduct, Product>()
.ForMember(product => product.ProductVersion, flatProduct => flatProduct.MapFrom(fp => fp));
});
IMapper mapper = config.CreateMapper();
var flatProductExample = new FlatProduct
{
Sku = "ABC123",
BrandId = 1,
CategoryId = 1,
ProductVersionId = 1,
PriceLevelId = 1,
Price = 12.99m,
RebatePrice = 9.99m,
FlatProductInventory = new List<FlatProductInventory>()
{
new FlatProductInventory()
{
StockedLocationId = 1,
StockedQty = 33
}
}
};
var mappedProduct = mapper.Map<Product>(flatProductExample);
Assert.Equal(flatProductExample.Sku, mappedProduct.ProductVersion.ProductInventory[0].Sku); //Fail
Assert.Equal(flatProductExample.FlatProductInventory[0].StockedQty, mappedProduct.ProductVersion.ProductInventory[0].StockedQty); //Pass
}
Xerillio确实接近我需要的答案,实际上他的答案适用于automapper低于8的版本。就我而言,我使用的是最新版本,因此我不得不对其代码进行一些修改才能使其正常工作。这里是:
var config = new MapperConfiguration(cfg => {
cfg.CreateMap<FlatProduct, ProductPrice>();
cfg.CreateMap<FlatProduct, ProductVersion>();
cfg.CreateMap<FlatProduct, ProductInventory>();
cfg.CreateMap<FlatProductInventory, ProductInventory>();
cfg.CreateMap<FlatProduct, ProductVersion>()
.ForMember(productVersion => productVersion.ProductPrice, flatProduct => flatProduct.MapFrom(fp => fp))
.ForMember(productVersion => productVersion.ProductInventory, opt => opt.MapFrom((flatProduct, productVersion, i, context) => {
return flatProduct.FlatProductInventory
// Map using '<FlatProductInventory, ProductInventory>'
.Select(flatPInv => context.Mapper.Map<FlatProductInventory, ProductInventory>(flatPInv))
// Map (in-place by passing in the destination object)
// using '<FlatProduct, ProductInventory>'
.Select(destPInv => context.Mapper.Map<FlatProduct, ProductInventory>(flatProduct, destPInv))
// Now you've combined the mappings from FlatProduct and FlatProductInventory
.ToList();
}));
cfg.CreateMap<FlatProduct, Product>()
.ForMember(product => product.ProductVersion, flatProduct => flatProduct.MapFrom(fp => fp));
});
我的理解是,每一个FlatProductInventory
你想要拥有一个ProductInventory
。但是,ProductInventory
还需要填充来自的属性FlatProduct
。
你实际上已经在“将两种类型映射到一种”上了正确的轨道,因此解决该问题的一种方法是:
var config = new MapperConfiguration(cfg => {
cfg.CreateMap<FlatProduct, ProductPrice>();
cfg.CreateMap<FlatProduct, ProductVersion>();
cfg.CreateMap<FlatProduct, ProductInventory>();
cfg.CreateMap<FlatProductInventory, ProductInventory>();
cfg.CreateMap<FlatProduct, ProductVersion>()
.ForMember(productVersion => productVersion.ProductPrice, flatProduct => flatProduct.MapFrom(fp => fp))
.ForMember(productVersion => productVersion.ProductInventory,
opt => opt.ResolveUsing((flatProduct, productVersion, i, context) => {
return flatProduct.FlatProductInventory
// Map using '<FlatProductInventory, ProductInventory>'
.Select(flatPInv => context.Mapper.Map<FlatProductInventory, ProductInventory>(flatPInv))
// Map (in-place by passing in the destination object)
// using '<FlatProduct, ProductInventory>'
.Select(destPInv => context.Mapper.Map<FlatProduct, ProductInventory>(flatProduct, destPInv))
// Now you've combined the mappings from FlatProduct and FlatProductInventory
.ToList();
})
);
cfg.CreateMap<FlatProduct, Product>()
.ForMember(product => product.ProductVersion, flatProduct => flatProduct.MapFrom(fp => fp));
});
(可能有语法错误,因为我没有通过IDE运行它。)
谢谢,您一定为我指明了正确的方向。它不能按原样工作,因为AutoMapper 8中不存在使用resolve的功能。我不得不修改代码以使其正常工作,但是语法很好。非常感谢