AutoMapper 应如何访问我的 DAL？

发布于 2024-10-31 12:58:51 字数 1527 浏览 1 评论 0原文

我有一个带有 ProjectId 属性的 InvoiceInputModel ，它是对 Project 实体的引用。理想情况下，我希望 AutoMapper 能够从 InvoiceInputModel 映射整个 Invoice 实体，如下所示：

public class InvoiceInputModel
{
    public Guid Id { get; set; }
    public DateTime Date { get; set; }
    public string Reference { get; set; }
    public Guid ProjectId { get; set; }
}

显然，以下内容是不好的：

Mapper.CreateMap<InvoiceInputModel, Invoice>()
    .ForMember(src => src.Project, opt => opt.MapFrom(
        dest => _unitOfWork.CurrentSession.Get<Project>(dest.ProjectId)
    )
);

我如何告诉 AutoMapper < code>invoice.Project 应该映射到基于 InvoiceInputModel 中的 ProjectId 属性的 Project 实体，同时保持松散耦合？

在我的 `InvoiceController` 中进行发票/编辑：

[HttpPost]
[Authorize]
public ActionResult Edit(InvoiceInputModel invoiceInputModel)
{
    var invoice = _unitOfWork.CurrentSession.Get<Invoice>(invoiceInputModel.Id);

    Mapper.Map<InvoiceInputModel, Invoice>(invoiceInputModel, invoice);

    invoice.Project = _unitOfWork.CurrentSession.Get<Project>(invoiceInputModel.ProjectId);
    // I want AutoMapper to do the above.

    _unitOfWork.CurrentSession.SaveOrUpdate(invoice);
    _unitOfWork.Commit();

    return View(invoice);
}

我发现了一些有关“Resolvers”和 ResolveUsing 的内容，但我没有使用它的经验。

如何告诉 AutoMapper 执行此操作，同时保持实体模型、输入模型和视图模型之间的松散耦合？或者有更好的方法吗？

原文

I have an InvoiceInputModel with a ProjectId property which is a reference to a Project entity. Ideally, I want AutoMapper to be able to map an entire Invoice entity from an InvoiceInputModel, which looks like this:

public class InvoiceInputModel
{
    public Guid Id { get; set; }
    public DateTime Date { get; set; }
    public string Reference { get; set; }
    public Guid ProjectId { get; set; }
}

Obviously the following is bad:

Mapper.CreateMap<InvoiceInputModel, Invoice>()
    .ForMember(src => src.Project, opt => opt.MapFrom(
        dest => _unitOfWork.CurrentSession.Get<Project>(dest.ProjectId)
    )
);

How do I tell AutoMapper that invoice.Project should be mapped to a Project entity based off of the ProjectId property in InvoiceInputModel while preserving loose coupling?

Invoice/Edit in my `InvoiceController`:

[HttpPost]
[Authorize]
public ActionResult Edit(InvoiceInputModel invoiceInputModel)
{
    var invoice = _unitOfWork.CurrentSession.Get<Invoice>(invoiceInputModel.Id);

    Mapper.Map<InvoiceInputModel, Invoice>(invoiceInputModel, invoice);

    invoice.Project = _unitOfWork.CurrentSession.Get<Project>(invoiceInputModel.ProjectId);
    // I want AutoMapper to do the above.

    _unitOfWork.CurrentSession.SaveOrUpdate(invoice);
    _unitOfWork.Commit();

    return View(invoice);
}

I spotted something about "Resolvers" and ResolveUsing, but I have no experience using it.

How do I tell AutoMapper to do this while preserving loose coupling between my entity models, input models and view models? Or is there a better way?

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