Question

此错误在这里很普遍，但我在这里有不同的情况。我有表链接。我的部门表中有数据，所以外键存在。

这是错误：

INSERT语句与FOREIGN KEY约束“ FK_dbo.AspNetUsers_dbo.Department_Department_Id”冲突。在数据库“ aspnet-hr_pcms-20181109102923”的表“ dbo.Department”的列“ Department_Id”中发生了冲突。

源错误：

第153行：{
  第154行：var user = new ApplicationUser {UserName = model.Email，Email = model.Email};
  第155行：var结果=等待UserManager.CreateAsync（user，model.Password）;
  第156行：if（成功）
  第157行：{

主要错误在第155行

堆栈跟踪：

[SqlException（0x80131904）：INSERT语句与FOREIGN KEY约束“ FK_dbo.AspNetUsers_dbo.Department_Department_Id”发生冲突。在数据库“ aspnet-hr_pcms-20181109102923”的表“ dbo.Department”的列“ Department_Id”中发生了冲突。

System.Data.SqlClient.SqlConnection.OnError（SqlException异常，布尔值breakConnection，操作1 wrapCloseInAction) +2555674 System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection, Action 1 wrapCloseInAction）+5958364          System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning（TdsParserStateObject stateObj，布尔调用方HasConnectionLock，布尔asyncClose）+285          System.Data.SqlClient.TdsParser.TryRun（RunBehavior runBehavior，SqlCommand cmdHandler，SqlDataReader dataStream，BulkCopySimpleResultSet bulkCopyHandler，TdsParserStateObject stateObj，Boolean＆dataReady）+4169          System.Data.SqlClient.SqlCommand.FinishExecuteReader（SqlDataReader ds，RunBehavior runBehavior，字符串resetOptionsString，布尔值isInternal，布尔值forDescribeParameterEncryption，布尔值shouldCacheForAlwaysEncrypted）+255          System.Data.SqlClient.SqlCommand.CompleteAsyncExecuteReader（Boolean isInternal，Boolean forDescribeParameterEncryption）+262          System.Data.SqlClient.SqlCommand.InternalEndExecuteNonQuery（IAsyncResult asyncResult，String endMethod，Boolean isInternal）+652          System.Data.SqlClient.SqlCommand.EndExecuteNonQueryInternal（IAsyncResult asyncResult）+245          System.Data.SqlClient.SqlCommand.EndExecuteNonQueryAsync（IAsyncResult asyncResult）+156          System.Threading.Tasks.TaskFactory 1.FromAsyncCoreLogic(IAsyncResult iar, Func 2 endFunction，Action 1 endAction, Task 1个承诺，布尔值requireSynchronization）+86          System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess（任务任务）+99          System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification（任务任务）+58          System.Data.Entity.Utilities.CultureAwaiter`1.GetResult（）+38          System.Data.Entity.Core.Mapping.Update.Internal.d__0.MoveNext（）+2714          System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess（任务任务）+99          System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification（任务任务）+58          System.Data.Entity.Core.Mapping.Update.Internal.d__0.MoveNext（）+417

[UpdateException: An error occurred while updating the entries. See the inner exception for details.]
   System.Data.Entity.Core.Mapping.Update.Internal.<UpdateAsync>d__0.MoveNext() +640
   System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) +99
   System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +58
   System.Data.Entity.Core.Objects.<ExecuteInTransactionAsync>d__3d`1.MoveNext() +741
   System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) +99
   System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +58
   System.Data.Entity.Core.Objects.<SaveChangesToStoreAsync>d__39.MoveNext() +379
   System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) +99
   System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +58
   System.Data.Entity.SqlServer.<ExecuteAsyncImplementation>d__9`1.MoveNext() +346
   System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) +99
   System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +58
   System.Data.Entity.Core.Objects.<SaveChangesInternalAsync>d__31.MoveNext() +799

[DbUpdateException: An error occurred while updating the entries. See the inner exception for details.]
   System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) +99
   System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +58
   Microsoft.AspNet.Identity.EntityFramework.<SaveChanges>d__61.MoveNext() +214
   System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) +99
   System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +58
   Microsoft.AspNet.Identity.EntityFramework.<CreateAsync>d__38.MoveNext() +243
   System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) +99
   System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +58
   System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd(Task task) +25
   Microsoft.AspNet.Identity.<CreateAsync>d__73.MoveNext() +1050
   System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) +99
   System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +58
   Microsoft.AspNet.Identity.<CreateAsync>d__79.MoveNext() +442
   System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) +99
   System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +58
   System.Runtime.CompilerServices.TaskAwaiter`1.GetResult() +28
   hr_pcms.Controllers.<Register>d__15.MoveNext() in C:\Users\Administrator\source\repos\hr_pcms\hr_pcms\Controllers\AccountController.cs:155
   System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) +99
   System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +58
   System.Web.Mvc.Async.TaskAsyncActionDescriptor.EndExecute(IAsyncResult asyncResult) +97
   System.Web.Mvc.Async.<>c__DisplayClass8_0.<BeginInvokeAsynchronousActionMethod>b__1(IAsyncResult asyncResult) +17
   System.Web.Mvc.Async.WrappedAsyncResult`1.CallEndDelegate(IAsyncResult asyncResult) +10
   System.Web.Mvc.Async.WrappedAsyncResultBase`1.End() +49
   System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethod(IAsyncResult asyncResult) +32
   System.Web.Mvc.Async.AsyncInvocationWithFilters.<InvokeActionMethodFilterAsynchronouslyRecursive>b__11_0() +50
   System.Web.Mvc.Async.<>c__DisplayClass11_1.<InvokeActionMethodFilterAsynchronouslyRecursive>b__2() +228
   System.Web.Mvc.Async.<>c__DisplayClass7_0.<BeginInvokeActionMethodWithFilters>b__1(IAsyncResult asyncResult) +10
   System.Web.Mvc.Async.WrappedAsyncResult`1.CallEndDelegate(IAsyncResult asyncResult) +10
   System.Web.Mvc.Async.WrappedAsyncResultBase`1.End() +49
   System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethodWithFilters(IAsyncResult asyncResult) +34
   System.Web.Mvc.Async.<>c__DisplayClass3_6.<BeginInvokeAction>b__3() +35
   System.Web.Mvc.Async.<>c__DisplayClass3_1.<BeginInvokeAction>b__5(IAsyncResult asyncResult) +100
   System.Web.Mvc.Async.WrappedAsyncResult`1.CallEndDelegate(IAsyncResult asyncResult) +10
   System.Web.Mvc.Async.WrappedAsyncResultBase`1.End() +49
   System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeAction(IAsyncResult asyncResult) +27
   System.Web.Mvc.<>c.<BeginExecuteCore>b__152_1(IAsyncResult asyncResult, ExecuteCoreState innerState) +11
   System.Web.Mvc.Async.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult) +29
   System.Web.Mvc.Async.WrappedAsyncResultBase`1.End() +49
   System.Web.Mvc.Controller.EndExecuteCore(IAsyncResult asyncResult) +45
   System.Web.Mvc.<>c.<BeginExecute>b__151_2(IAsyncResult asyncResult, Controller controller) +13
   System.Web.Mvc.Async.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult) +22
   System.Web.Mvc.Async.WrappedAsyncResultBase`1.End() +49
   System.Web.Mvc.Controller.EndExecute(IAsyncResult asyncResult) +26
   System.Web.Mvc.Controller.System.Web.Mvc.Async.IAsyncController.EndExecute(IAsyncResult asyncResult) +10
   System.Web.Mvc.<>c.<BeginProcessRequest>b__20_1(IAsyncResult asyncResult, ProcessRequestState innerState) +28
   System.Web.Mvc.Async.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult) +29
   System.Web.Mvc.Async.WrappedAsyncResultBase`1.End() +49
   System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult) +28
   System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.EndProcessRequest(IAsyncResult result) +9
   System.Web.CallHandlerExecutionStep.InvokeEndHandler(IAsyncResult ar) +152
   System.Web.CallHandlerExecutionStep.OnAsyncHandlerCompletion(IAsyncResult ar) +125

在我使用的此应用程序中，选择了“个人身份验证”。我从未编辑过AccountController，但是我通过向AspNetUsers表中添加列来扩展了模型。

任何有帮助的建议都会很棒。

Answer 1

似乎您添加到AspNetUsers表中的列包含Department_Department_Id的外键。我相信的问题是您要添加用户-但添加代码未设置该用户的Department_Id-因此，实际上它为Department_Id添加了null，并且键不能为null。要解决此问题，请创建一个从ApplicationUser派生的自定义MyUser类，包括Department_Id和其他任何相关列，并使用该派生类创建新用户。然后在调用Create之前分配DepartmentId。

我前一阵子做过，可能有必要将它添加到Google上，因为有一些示例如何将列添加到已定义的AspNet表中。我相信我也更新了该项目用来创建表的脚本，并在其中定义了新列，因此，如果在没有数据库的情况下运行，它将创建具有正确配置的新表。根据您的文字，您可能已经完成了此操作...

更新-（我只能在这里添加，需要更多代表才能添加或回复评论）。
知道你可以用Google-我做到了。您没有评论是否只是将列添加到AspNetUsers模型中-还是创建了我提到的派生类。其他人回答了我做的同样的事情-您不能先实例化一个新用户而不先为其分配DepartmentId-并且因为您需要先存在UserId而不能首先执行它-因此它必须像我一样同时完成建议。

以下是一些将列正确添加到AspNetUser的链接：

Ruard van Elburg's answer here to someone doing the same thing.并且在该帖子中，下一个答案具有MS链接，该链接指向如何操作 VS2013中。
Another post from MS一种将字段添加到身份验证模型。
An MSDN article专门用于在AS.NET中存储用户信息身份。

看看这些链接，看看它有多容易。这是一个快速的想法-未在VS中完成，很抱歉-未测试。只是给你一个大概的想法... 我无法访问去年完成的项目，因此无法提供快速准确的答案。

public class ApplicationUser : IdentityUser
{
     // Because it is derived, all existing AspNetUser columns are inherited
     // just need to add your new columns
     public int DepartmentId { get; set; }
}

// model used for login page - with validation within page for items
public class LoginViewModel()
{
    public string username { get; set; }
    public string password { get; set; }
    public List<SelectListItem> DepartmentList {
       get {return new List<SelectListItem>() { 
            new SelectListItem() {Text = "Department A", Value = "1"},
            new SelectListItem() {Text = "Department B", Value = "2"},
            new SelectListItem() {Text = "Department C", Value = "3"}
         };
    }
    private int selectedDepartment { 
        return DepartmentList.SelectedValue != null ? 
               Convert.Int32(DepartmentList.SelectedValue) : -1;
    }
}

在您的网页上（您未说过使用的是asp.net/mvc/other）-他们也必须选择要登录的部门，可能是一个带有

值的下拉菜单

Html.DropDownFor(x => x.SelectedItem, Model.DepartmentList)

// then something like
public async Task<ActionResult> Login(LoginViewModel lmodel, string returnUrl)
{
    if (!ModelState.IsValid)
    {
        return View(lmodel);
    }

    ApplicationUser user = new ApplicationUser() {
        UserName = lmodel.username,
        Password = lmodel.password,
        //... other AspNetUser values assigned?
        //...,
        Department_Id = lmodel.selectedDepartment
    }
    var result = await UserManager.CreateAsync(user, model.Password);
    if (result.Succeeded) {
       await SignInAsync(user, isPersistent: false);
       return RedirectToAction("Index", "Home");
    }        
}

INSERT语句发生冲突

1 个答案: