c# - 向身份用户表添加软删除

Question

我已经在我的用户表中添加了一个 deleted at 列，但显然身份框架提供的注册新用户方法仍然在数据库中看到这些用户，有没有办法告诉它忽略特定列？

注册

// this needs to ignore any DeletedAt where not null
var result = await UserManager.CreateAsync(user, model.Password);
if (result.Succeeded)
{
    ...
}

登录

// this needs to ignore any DeletedAt where not null
result = await SignInManager.PasswordSignInAsync( user.UserName, model.Password, model.RememberMe, shouldLockout: true );

...以及任何其他正在发生的外部登录事情都需要告知该专栏。

Answer 1

在您的 signInManager 中覆盖 SignInAsync 方法，该方法用于每个登录过程(本地或外部)

public class ApplicationSignInManager : SignInManager<User, int>
{    

     public override async Task SignInAsync(User user, bool isPersistent, bool rememberBrowser)
     {
         if (!user.isDeleted)
         {
             await base.SignInAsync(user, isPersistent, rememberBrowser);
         } 
         else
         {
             ...
         }                      
     }
}

或者创建自定义 UserStore 并覆盖 GetUserAggregateAsync 方法(它在所有“查找”方法中调用):

public class CustomUserStore : UserStore<ApplicationUser>
{
    public CustomUserStore(ApplicationDbContext context) : base(context) { }

    protected override async Task<ApplicationUser> GetUserAggregateAsync(Expression<Func<ApplicationUser, bool>> filter)
    {
        var user = await base.GetUserAggregateAsync(filter);

        // if user is found but soft deleted then ignore and return null
        if (user != null && user.IsDeleted)
        {
            return null;
        }

        return user;
    }
}