向身份用户表添加软删除

Question

我已经在我的 Users 表中添加了一个已删除的 at 列，但显然由 Identity 框架提供的注册新用户方法仍然会在数据库中看到这些用户，有没有办法告诉它忽略某个列？

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 );

...任何其他正在进行的外部登录事情都需要被告知该专栏。

Answer 1

在您的signInManager 中覆盖SignInAsync 方法，此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
         {
             ...
         }                      
     }
}

或者创建一个自定义的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;
    }
}