Question

我正在使用.NET Core 2 Razor Pages和个人帐户身份验证进行Web应用。

我使用firstname扩展了我的数据库，因为它没有通过标准实现。一切都正常。但是，我想扩展我的/帐户/管理页面，以确保用户能够更改自己的名称。

OnGetAsync工作正常，但是当我的OnPostAsync无法正常工作时。

OnPostAsync

 public async Task<IActionResult> OnPostAsync()
    {
        if (!ModelState.IsValid)
        {
            return Page();
        }

        var user = await _userManager.GetUserAsync(User);
        if (user == null)
        {
            throw new ApplicationException($"Unable to load user with ID '{_userManager.GetUserId(User)}'.");
        }

        if (Input.Email != user.Email)
        {
            var setEmailResult = await _userManager.SetEmailAsync(user, Input.Email);
            if (!setEmailResult.Succeeded)
            {
                throw new ApplicationException($"Unexpected error occurred setting email for user with ID '{user.Id}'.");
            }
        }

        if (Input.PhoneNumber != user.PhoneNumber)
        {
            var setPhoneResult = await _userManager.SetPhoneNumberAsync(user, Input.PhoneNumber);
            if (!setPhoneResult.Succeeded)
            {
                throw new ApplicationException($"Unexpected error occurred setting phone number for user with ID '{user.Id}'.");
            }
        }

        // not working yet
        if (Input.FirstName != user.FirstName)
        {
            var setFirstNameResult = await MyManager.SetFirstNameAsync(user, Input.FirstName);

            if (!setFirstNameResult.Succeeded)
            {
                throw new ApplicationException($"Unexpected error occurred setting first name for user with ID '{user.Id}'.");
            }
        }

        StatusMessage = "Your profile has been updated";
        return RedirectToPage();
    }

MyManager.cs

public class MyManager : UserManager<ApplicationUser>
{
    public MyManager(IUserStore<ApplicationUser> store, IOptions<IdentityOptions> optionsAccessor, IPasswordHasher<ApplicationUser> passwordHasher, IEnumerable<IUserValidator<ApplicationUser>> userValidators, IEnumerable<IPasswordValidator<ApplicationUser>> passwordValidators, ILookupNormalizer keyNormalizer, IdentityErrorDescriber errors, IServiceProvider services, ILogger<UserManager<ApplicationUser>> logger) : base(store, optionsAccessor, passwordHasher, userValidators, passwordValidators, keyNormalizer, errors, services, logger)
    {

    } 

    public static async Task<IdentityResult> SetFirstNameAsync(ApplicationUser user, string FirstName)
    {
        if (user == null)
        {
            throw new ArgumentNullException(nameof(user));
        }

        if (FirstName == null)
        {
            throw new ArgumentNullException(nameof(FirstName));
        }

        user.FirstName = FirstName;

        return IdentityResult.Success;
    }
}

当我点击“保存”时，它失败了。按钮并告诉我我的个人资料已成功更新，但事实并非如此。它只保留了旧的名字值。我在这里缺少什么？

Answer 1

您的方法不会执行类似的内置方法所做的操作：即，实际上将更改保留回数据库。您只需在用户上设置属性，然后返回成功。只要该实例超出范围，您为名字设置的值就会随之而来。

那就是说，@ CodeNotFound的评论很突出。没有理由这样做，你也不应该这样做。其他方法适用于特定用例。对于通常更新用户的属性，您只需设置相关属性，然后使用UpdateAsync将用户保存回来。

如何在.NET Core Razor页面中使用Setter扩展UserManager？

OnPostAsync

MyManager.cs

1 个答案: