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角色管理器。DeleteAsync或UpdateAsync在asp中未按预期工作。net core 2.0

asp.net-core-2.0 asp.net-identity asp.net-core-mvc c#

Aldemar Cuartas Carvajal · 技术社区 · 8 年前

我正在使用asp。net core 2.0 Identity和我有一个从IdentityRole继承的ApplicationRole类。根据文档,RoleManager为AspNetRoles表管理有关角色的CRUD操作,因此在Startup类中添加了服务:

services.AddIdentity<ApplicationUser, ApplicationRole>()
        .AddEntityFrameworkStores<MyDbContext>()
        .AddDefaultTokenProviders();

services.AddAuthentication()

在配置方法中:

app.UseAuthentication();

在我的控制器中:

public AdministrationController(
            RoleManager<ApplicationRole> roleManager,
            ILogger<AccountController> logger,
            IStringLocalizer<AccountController> localizer)
{
   _roleManager = roleManager;
}

控制器操作:

[HttpPost]
        public async Task<JsonResult> Role_Create([DataSourceRequest] DataSourceRequest request, ApplicationRoleViewModel role)
        {
            if (role != null && ModelState.IsValid)
            {
                ApplicationRole identityRole = new ApplicationRole();
                identityRole.Name = role.Name;

                if (await _roleManager.RoleExistsAsync(identityRole.Name))
                {
                    ModelState.AddModelError("Role", "Role already exists");
                }
                else
                {
                    await _roleManager.CreateAsync(identityRole);
                }
            }

            return Json(new[] { role }.ToDataSourceResult(request, ModelState));
        }

        [HttpPost]
        public async Task<JsonResult> Role_Update([DataSourceRequest] DataSourceRequest request, ApplicationRoleViewModel role)
        {
            if (role != null && ModelState.IsValid)
            {
                ApplicationRole identityRole = new ApplicationRole();
                identityRole.Id = role.Id;
                identityRole.Name = role.Name;
                await _roleManager.UpdateAsync(identityRole);
            }

            return Json(new[] { role }.ToDataSourceResult(request, ModelState));
        }

        [HttpPost]
        public async Task<JsonResult> Role_Delete([DataSourceRequest] DataSourceRequest request, ApplicationRoleViewModel role)
        {
            if (role != null)
            {
                ApplicationRole identityRole = new ApplicationRole();
                identityRole.Id = role.Id;
                identityRole.Name = role.Name;
                if (await _roleManager.RoleExistsAsync(identityRole.Name))
                {
                    await _roleManager.DeleteAsync(identityRole);
                }
                else
                {
                    ModelState.AddModelError("Role", "Role doesn't exist");
                }
            }

            return Json(new[] { role }.ToDataSourceResult(request, ModelState));
        }

_角色管理器。CreateAsync方法按预期工作,角色插入到AspNetRoles表中,但是\u roleManager。更新同步和角色管理器。DeleteAsync无法按预期工作,表仍显示相同的行,未更新或删除。

操作前的表行:

更新操作:

删除操作:

操作完成后,表中显示的行与第一个屏幕截图中所示的行相同。假设RoleManager类管理对表的操作。

1 回复 | 直到 8 年前

jasonx 8 年前

    [HttpPost]
    [ValidateAntiForgeryToken]
    public async Task<ActionResult> Edit(string id, [Bind("Id,Role")] RoleViewModel pRole)
    {
        if (id != pRole.Id)
        {
            return NotFound();
        }

        if (ModelState.IsValid)
        {
            try
            {
                var role = await _roleManager.FindByIdAsync(pRole.Id);
                role.Name = pRole.Role;
                var result = await _roleManager.UpdateAsync(role);
                if (!result.Succeeded)
                {
                    ModelState.AddModelError("", result.Errors.First().ToString());
                    return View();
                }
                return RedirectToAction("Index");
            } catch (Exception)
            {
                throw;
            }
        }
        return View(pRole);
    }