我已经为标准项目的ApplicationUser添加了一些特定的属性。 一些添加的属性是自定义类。 由于我使用EntityFramework,它为用户创建一个dbtable,为每个自定义类创建一个。 我将属性添加到我的ManageController和Views,并将这些属性添加到特定的dbtable工作,但我无法访问它们。在dbo.AspNetUsers中添加了一个列,在属性+ ID之后调用(在我的示例中为“NameID”)。
现在,如果我在ManageController中加载用户,则会加载每个普通属性,但自定义属性为空。
我的问题是,如何加载自定义对象(实际存储在另一个表中)。
ApplicationUser.cs:
namespace refProject.Models
{
public class ApplicationUser : IdentityUser
{
public Name Name { get; set; }
}
}
ManageController.cs
//other usings
using refProject.Models;
using refProject.Models.ManageViewModels;
namespace refProject.Controllers
{
[Authorize]
public class ManageController : Controller
{
private readonly UserManager<ApplicationUser> _userManager;
//other managers
public ManageController(
UserManager<ApplicationUser> userManager,
//other managers
)
{
_userManager = userManager;
//other managers
}
//
// GET: /Manage/Index
[HttpGet]
public async Task<IActionResult> Index(ManageMessageId? message = null)
{
ViewData["StatusMessage"] =
message == ManageMessageId.ChangeNameSuccess ? "Your name has been changed."
: message == ManageMessageId.SetNameSuccess ? "Your name has been set."
: "";
var user = await GetCurrentUserAsync();
if (user == null)
{
return View("Error");
}
var model = new IndexViewModel
{
//other Properties
//
//
// THIS ONE IS NULL
//
//
Name = user.Name
//other Properties
};
return View(model);
}
// GET: /Manage/ChangeName
[HttpGet]
public IActionResult ChangeName()
{
return View();
}
//
// POST: /Manage/ChangeName
[HttpPost]
[ValidateAntiForgeryToken]
public async Task<IActionResult> ChangeName(ChangeNameViewModel model)
{
if(!ModelState.IsValid)
{
return View(model);
}
var user = await GetCurrentUserAsync();
if(user != null)
{
Name NewName = new Name();
NewName.FirstName = model.NewFirstName;
NewName.LastName = model.NewLastName;
user.Name = NewName;
IdentityResult result = await _userManager.UpdateAsync(user);
if (result.Succeeded)
{
return RedirectToAction(nameof(Index), new { Message = ManageMessageId.ChangeNameSuccess });
}
AddErrors(result);
return View(model);
}
return RedirectToAction(nameof(Index), new { Message = ManageMessageId.Error });
}
//
// GET: /Manage/SetName
[HttpGet]
public IActionResult SetName()
{
return View();
}
//
// POST: /Manage/SetName
[HttpPost]
[ValidateAntiForgeryToken]
public async Task<IActionResult> SetName(SetNameViewModel model)
{
if(!ModelState.IsValid)
{
return View(model);
}
var user = await GetCurrentUserAsync();
if(user != null)
{
Name NewName = new Name();
NewName.FirstName = model.NewFirstName;
NewName.LastName = model.NewLastName;
user.Name = NewName;
IdentityResult result = await _userManager.UpdateAsync(user);
if(result.Succeeded)
{
return RedirectToAction(nameof(Index), new { Message = ManageMessageId.SetNameSuccess });
}
AddErrors(result);
return View(model);
}
return RedirectToAction(nameof(Index), new { Message = ManageMessageId.Error });
}
#region Helpers
private void AddErrors(IdentityResult result)
{
foreach (var error in result.Errors)
{
ModelState.AddModelError(string.Empty, error.Description);
}
}
public enum ManageMessageId
{
Error,
ChangeNameSuccess,
SetNameSuccess,
}
private Task<ApplicationUser> GetCurrentUserAsync()
{
return _userManager.GetUserAsync(HttpContext.User);
}
#endregion
}
}
Name.cs
namespace refProject.Models
{
public class Name
{
public int ID { get; set; }
public string fTitle { get; set; }
public string FirstName { get; set; }
public string LastName { get; set; }
public string lTitle { get; set; }
public override string ToString()
{
return fTitle + " " + FirstName + " " + LastName + " " + lTitle;
}
}
}
答案 0 :(得分:5)
这是一个已知问题。它不被视为错误,而是设计决策。
推荐的方法是通过DbContext
而不是UserManager
实施来访问用户。
“只是为了添加更多细节:作为性能优化,ASP.NET Core Identity目前仅根据需要加载与用户或角色相关的实体以满足API调用。即它不会加载相关实体(不是甚至是内置的那些)急切地对
FindByName()
这样的方法调用进行调用,因为只需要返回根来查找方法。此时,建议针对
DbContext
发出查询 加载相关数据的方法。如果你想从中抽象出来 应用程序代码,您可以扩展Identity存储和管理器 用于添加检索和返回自定义相关方法的类 数据“。
您可以按如下方式更改GetCurrentUserAsync
方法:
private ApplicationUser GetCurrentUserAsync()
{
return _userManager.Users.Include(x => x.Name).FirstOrDefault(x => x.Id == _userManager.GetUserId(User));
}