即使存在于数据库中也找不到角色

Question

任何人都可以向我解释为什么在我通过代码进行调试时更新我的角色时它具有正确的用户和组 Guid 吗？

public async Task<IActionResult> Update(RoleModification model)
{
        IdentityResult result;
        if (ModelState.IsValid)
        {
            foreach (string userId in model.AddIds ?? new string[] { })
            {
                ApplicationUser user = await userManager.FindByIdAsync(userId);
                if (user != null)
                {
                    result = await userManager.AddToRoleAsync(user,
                        model.RoleName);
                    if (!result.Succeeded)
                    {
                        AddErrorsFromResult(result);
                    }
                }
            }
            foreach (string userId in model.DeleteIds ?? new string[] { })
            {
                ApplicationUser user = await userManager.FindByIdAsync(userId);
                if (user != null)
                {
                    result = await userManager.RemoveFromRoleAsync(user,
                        model.RoleName);
                    if (!result.Succeeded)
                    {
                        AddErrorsFromResult(result);
                    }
                }
            }
        }

        if (ModelState.IsValid)
        {
            return RedirectToAction(nameof(Index));
        }
        else
        {
            return await Update(model.RoleId);
        }
  }

如您所见，[dbo].[AspNetRoles] 角色 table ClubSuperAdmin 确实存在。

ID	NAME	NormalizedName
2924519a-7024-417f-a8e1-335dca7dba63	ClubMod	CLUBMOD
3f6e4213-d513-47ae-8e02-dcdeaa4e22c9	ClubUser	CLUBUSER
40ff2868-3264-4195-82c4-68bddcc5b036	ClubSuperAdmin	SUPERADMIN
4b1b831c-61ac-46b9-88f5-089a11f1e46e	Admin	ADMIN

用户Table：

ID	Firstname	Last Name
f2ab370a-329a-4fde-989f-f3526334de1a	David	User

那为什么说InvalidOperationException: Role CLUBSUPERADMIN does not exist，surley它知道ClubSuperAdmin的大写是名字呢？

AspNetCore.Identity.UserManager.AddToRoleAsync(TUser user, string role) Warehouse.Web.Controllers.RoleController.Update(RoleModification model) in RoleController.cs
        {
            foreach (string userId in model.AddIds ?? new string[] { })
            {
                ApplicationUser user = await userManager.FindByIdAsync(userId);
                if (user != null)
                {
                    result = await userManager.AddToRoleAsync(user,
                        model.RoleName);
                    if (!result.Succeeded)
                    {
                        AddErrorsFromResult(result);
                    }
                } 
Microsoft.AspNetCore.Mvc.Infrastructure.ActionMethodExecutor+TaskOfIActionResultExecutor ?.Execute(IActionResultTypeMapper mapper, ObjectMethodExecutor executor, object controller, object[] arguments) System.Threading.Tasks.ValueTask.get_Result()

Answer 1

错误告诉您角色 CLUBSUPERADMIN 不存在，并且查看 table，该项目不在 NormalizedName 列中。我将假设该角色的原始名称是 SuperAdmin 并且有人手动更改了 table 但也没有更新 NormalizedName 值。要解决此问题，请修复该值，例如：

UPDATE [dbo].[AspNetRoles]
SET NormalizedName = 'CLUBSUPERADMIN'
WHERE NAME = 'ClubSuperAdmin'

即使存在于数据库中也找不到角色

Role not being found even though exists in the database

c#

entity-framework-core

asp.net-core

ef-core-3.0

AspNetCore.Identity.UserManager.AddToRoleAsync(TUser user, string role) Warehouse.Web.Controllers.RoleController.Update(RoleModification model) in RoleController.cs