如何在索引视图中显示当前登录用户的记录？我不想让他们看到其他用户的记录，我只想让他们看到自己在数据库中添加的记录。我已经实现了身份认证和验证，以便用户可以拥有自己的帐户。请帮我修改我的代码。我看不到任何有关此问题的资源。我没有 ApplicationUser 所以我使用 IdentityUser 代替。
这是我当前的班级模型：
public class CommitmentForm
{
[Key]
public int CommitmentId { get; set; }
[Required]
public string? OrganizationName { get; set; }
[Required]
public string? AdvicerName { get; set; }
[Required]
public string? HomeAddress { get; set; }
[Required]
public string? ContactNo { get; set; }
public int CollegeId { get; set; }
[ForeignKey("CollegeId")]
[ValidateNever]
public College College { get; set; }
public int AcademicRankId { get; set; }
[ForeignKey("AcademicRankId")]
[ValidateNever]
public AcademicRank AcademicRank { get; set; }
[Display(Name = "School Year")]
public int SchoolYear { get; set; } = DateTime.Now.Year;
}
这是我当前的视图模型：
public class CommitmentFormVM
{
public CommitmentForm CommitmentForm { get; set; }
[ValidateNever]
public IEnumerable<SelectListItem> CollegeList { get; set; }
[ValidateNever]
public IEnumerable<SelectListItem> AcademicRankList { get; set; }
}
这是我的控制器操作：
public class CommitmentFormController : Controller
{
private readonly ApplicationDbContext _db;
private readonly IUnitOfWork _unitOfWork;
private readonly UserManager<IdentityUser> _userManager;
public CommitmentFormController(ApplicationDbContext db, IUnitOfWork unitOfWork, UserManager<IdentityUser> userManager)
{
_db = db;
_unitOfWork = unitOfWork;
_userManager = userManager;
}
//public IActionResult Index()
//{
// string userId = Commonism.getUserId(this.User);
// var User = _db.Users.SingleOrDefault(m => m.Id == userId);
// if (User == null)
// {
// return NotFound();
// }
// var currentUserCommitments = _db.CommitmentForms.Where(u => u.UserId == userId).ToList();
// return View(currentUserCommitments);
//}
[HttpGet]
public IActionResult Details(int? id)
{
if (id == null || _unitOfWork.Commitment == null)
{
return NotFound();
}
var commitmentObj = _unitOfWork.Commitment.Get(u => u.CommitmentId == id, includeProperties: "College,AcademicRank");
if (commitmentObj == null)
{
return NotFound();
}
return View(commitmentObj);
}
[HttpGet]
public async Task<IActionResult> Upsert(int? id)
{
CommitmentFormVM cmVM = new CommitmentFormVM
{
CollegeList = _unitOfWork.College.
GetAll().Select(u => new SelectListItem
{
Text = u.CollegeName,
Value = u.CollegeId.ToString()
}),
AcademicRankList = _unitOfWork.AcademicRank.
GetAll().Select(u => new SelectListItem
{
Text = u.RankName,
Value = u.AcademicRankId.ToString()
}),
CommitmentForm = new CommitmentForm()
};
if (id == null || id == 0)
{
// create
return View(cmVM);
}
else
{
// update
cmVM.CommitmentForm = _unitOfWork.Commitment.Get(u => u.CommitmentId == id);
return View(cmVM);
}
}
[HttpPost]
[ValidateAntiForgeryToken]
public async Task<IActionResult> Upsert(CommitmentFormVM commitmentFormVM)
{
if (ModelState.IsValid)
{
if (commitmentFormVM.CommitmentForm.CommitmentId == 0)
{
_unitOfWork.Commitment.Add(commitmentFormVM.CommitmentForm);
TempData["success"] = "Commitment Form added successfully";
}
else
{
_unitOfWork.Commitment.Update(commitmentFormVM.CommitmentForm);
TempData["success"] = "Commitment Form updated successfully";
}
_unitOfWork.SaveChanges();
return RedirectToAction("Details", new { id = commitmentFormVM.CommitmentForm.CommitmentId });
}
else
{
commitmentFormVM.CollegeList = _unitOfWork.College.
GetAll().Select(u => new SelectListItem
{
Text = u.CollegeName,
Value = u.CollegeId.ToString()
});
commitmentFormVM.AcademicRankList = _unitOfWork.AcademicRank.
GetAll().Select(u => new SelectListItem
{
Text = u.RankName,
Value = u.AcademicRankId.ToString()
});
return View(commitmentFormVM);
}
}
public IActionResult Delete(int? id)
{
CommitmentFormVM cmVM = new()
{
CollegeList = _unitOfWork.College.
GetAll().Select(u => new SelectListItem
{
Text = u.CollegeName,
Value = u.CollegeId.ToString()
}),
AcademicRankList = _unitOfWork.AcademicRank.
GetAll().Select(u => new SelectListItem
{
Text = u.RankName,
Value = u.AcademicRankId.ToString()
}),
CommitmentForm = new CommitmentForm(),
};
// delete
cmVM.CommitmentForm = _unitOfWork.Commitment.Get(u => u.CommitmentId == id);
return View(cmVM);
}
[HttpPost, ActionName("Delete")]
[ValidateAntiForgeryToken]
public IActionResult DeleteCategory(int? id)
{
if (_unitOfWork == null)
{
return Problem("Entity set 'IUnitOfWork' is null.");
}
CommitmentForm? category = _unitOfWork.Commitment.Get(u => u.CommitmentId == id);
if (category != null)
{
_unitOfWork.Commitment.Remove(category);
}
_unitOfWork.SaveChanges();
TempData["success"] = "Commitment Form deleted successfully"; //for toaster before redirecting
return RedirectToAction("Index", "Home");
}
}
我评论了索引操作，因为我不知道该怎么做。
如果我需要更改其中的某些内容，这是我的更新插入视图：
@model CommitmentFormVM;
<div class="college-create-container" style="margin-top:10rem">
<div class="cf-form-container">
<div class="cf-logo-container">
@(Model.CommitmentForm.CommitmentId != 0 ? "Update" : "Create") Commitment Form
</div>
<form method="post" class="cf-form">
<input asp-for="CommitmentForm.CommitmentId" hidden />
<div class="cf-form-group">
<label for="orgName">Organization Name</label>
<input asp-for="CommitmentForm.OrganizationName" type="text" id="orgName" placeholder="College Name">
<span asp-validation-for="CommitmentForm.OrganizationName" class="text-danger"></span>
</div>
<div class="cf-form-group">
<label for="advName">Advicer Name</label>
<input asp-for="CommitmentForm.AdvicerName" type="text" id="advName" placeholder="College Name">
<span asp-validation-for="CommitmentForm.AdvicerName" class="text-danger"></span>
</div>
<div class="cf-form-group">
<label for="address">Home Address</label>
<input asp-for="CommitmentForm.HomeAddress" type="text" id="address" placeholder="College Name">
<span asp-validation-for="CommitmentForm.HomeAddress" class="text-danger"></span>
</div>
<div class="cf-form-group">
<label for="cn">Contact Number</label>
<input asp-for="CommitmentForm.ContactNo" type="text" id="cn" placeholder="College Name">
<span asp-validation-for="CommitmentForm.ContactNo" class="text-danger"></span>
</div>
<div class="cf-form-group">
<label for="sy">School Year</label>
<input asp-for="CommitmentForm.SchoolYear" type="text" id="sy" disabled>
<span asp-validation-for="CommitmentForm.SchoolYear" class="text-danger"></span>
</div>
<div class="cf-row">
<div class="cf-form-group">
<label for="college">College</label>
<select asp-for="@Model.CommitmentForm.CollegeId" asp-items="@Model.CollegeList" id="college" class="form-select">
<option disabled selected>--Select College--</option>
</select>
<span asp-validation-for="CommitmentForm.CollegeId" class="text-danger"></span>
</div>
<div class="cf-form-group">
<label for="ar">Academic Rank</label>
<select asp-for="@Model.CommitmentForm.AcademicRankId" asp-items="@Model.AcademicRankList" id="ar" class="form-select">
<option disabled selected>--Select Academic Rank--</option>
</select>
<span asp-validation-for="CommitmentForm.AcademicRankId" class="text-danger"></span>
</div>
</div>
@if(Model.CommitmentForm.CommitmentId != 0)
{
<button class="cf-form-submit-btn" type="submit">Update</button>
}
else
{
<button class="cf-form-submit-btn" type="submit">Submit</button>
}
</form>
</div>
</div>
（我已经获取当前登录的用户ID并显示在表单中。在我单击提交按钮之前它是可见的，但之后，userId消失，这导致
modelstate.isValid（我希望用户创建记录后，他们将导航到索引视图，其中显示他们自己创建的记录的列表。他们不应该看到其他用户的记录）
首先，您应该确保CommitmentForm和ApplicationUser（自定义身份用户）之间存在一对一或一对多的关系。
如下：
公开课承诺表 { [钥匙] 公共 int CommitmentId { 获取；放; }
[Required]
public string? OrganizationName { get; set; }
[Required]
public string? AdvicerName { get; set; }
[Required]
public string? HomeAddress { get; set; }
[Required]
public string? ContactNo { get; set; }
public int CollegeId { get; set; }
[ForeignKey("CollegeId")]
[ValidateNever]
public College College { get; set; }
public int AcademicRankId { get; set; }
[ForeignKey("AcademicRankId")]
[ValidateNever]
public AcademicRank AcademicRank { get; set; }
[Display(Name = "School Year")]
public int SchoolYear { get; set; } = DateTime.Now.Year;
public ApplicationUser IdentityUser { get; set; }
}
然后您可以创建一个自定义身份用户，如下所示：
创建一个新类：
public class ApplicationUser : IdentityUser
{
public CommitmentForm CommitmentForm { get; set; }
}
修改dbcontext：
public class ApplicationDbContext : IdentityDbContext<ApplicationUser>
{
public ApplicationDbContext(DbContextOptions<ApplicationDbContext> options)
: base(options)
{
}
public DbSet<CommitmentForm> CommitmentForms { get; set; }
}
然后修改程序.cs：
builder.Services.AddDefaultIdentity<ApplicationUser>(options => options.SignIn.RequireConfirmedAccount = true)
.AddEntityFrameworkStores<ApplicationDbContext>();
然后我们就有了这两个类的关系。
然后在视图中，您可以查询索引视图的 ID，如下所示：
private readonly ILogger<HomeController> _logger;
private readonly ApplicationDbContext _db;
public HomeController(ILogger<HomeController> logger, ApplicationDbContext db)
{
_logger = logger;
_db = db;
}
public IActionResult Index()
{
var currentUserCommitments = new List<CommitmentForm>();
if (User.Identity.IsAuthenticated)
{
currentUserCommitments = _db.CommitmentForms.Where(u => u.IdentityUser.UserName == User.Identity
.名称).ToList(); }
return View(currentUserCommitments);
}
然后对于模型验证失败的问题，您需要使用调试工具来调试哪个属性导致模型失败，如果CommitmentFormVM内部需要触发一些属性，例如应用程序用户ID，您可以创建一个隐藏字段来存储它。
<input type="hidden" asp-for="CommitmentForm.IdentityUser.Id"/>