如何将派生类添加到存储库

Question

我需要一个建议。我有两个类，其中一个是派生类。我想在一个方法中插入我的基类和派生类。我怎样才能做到这一点？

//my entities
public class Form
{
public int FormId { get; set; }
public string Name { get; set; }
public string Surname { get; set; }
public string Message { get; set; }
}
public class ReturnForm : Form
{
public int OrderId { get; set; }
}
//my repository
public class FormRepository : IFormRepository:IDisposable
{
private readonly MyContext _db;
public FormRepository(MyContext db)
{
_db = db;
}

//I want to insert here Form or ReturnForm objects.
//What can i do?
public void AddFormMessage(Form form)
{
_db.Forms.Add(form);
}
}

Answer 1

我已经解决了业务层的问题。

public void AddFormMessage<T>(FormDto formDto)
{
Form form;
var targetClassType = typeof(T);
if (targetClassType == typeof(Form))
{
form = _mapper.Map<Form>(formDto);
}
else if (targetClassType == typeof(ReturnForm))
{
form = _mapper.Map<ReturnForm>(formDto);
}
else
{
throw new Exception("Unknown form type");
}

_unitOfWork.FormRepository.AddFormMessage(form);
}