如何正确排除 .NET 8 中的 Identity 表？

Question

我试图排除一些默认带有 Identity 的表，但我收到每个表的警告：

The entity type 'IdentityUserToken' was first mapped explicitly and then ignored. Consider not mapping the entity type in the first place.

这是我的程序.cs:

var builder = WebApplication.CreateBuilder(args);
var connectionString = builder.Configuration.GetConnectionString("APIContextConnection") ?? throw new InvalidOperationException("Connection string 'APIContextConnection' not found.");

builder.Services.AddDbContext<APIContext>(options => options.UseNpgsql(connectionString));

builder.Services.AddIdentity<APIUser, IdentityRole>(options => options.SignIn.RequireConfirmedAccount = false)
    .AddEntityFrameworkStores<APIContext>();

// Add services to the container.
ServiceContainer.AddServices(builder.Services);
builder.Services.AddScoped<ISeeder, Seeder>();

builder.Services.AddControllers();
builder.Services.AddEndpointsApiExplorer();
builder.Services.AddSwaggerGen();

// Configure JWT authentication
var key = builder.Configuration["JWT:Key"];
if (string.IsNullOrEmpty(key))
    throw new InvalidOperationException("JWT key not found.");

builder.Services.AddAuthentication(opt =>
{
    opt.DefaultAuthenticateScheme = JwtBearerDefaults.AuthenticationScheme;
    opt.DefaultChallengeScheme = JwtBearerDefaults.AuthenticationScheme;
})
    .AddJwtBearer(options =>
    {
        options.RequireHttpsMetadata = false;
        options.SaveToken = true;
        options.TokenValidationParameters = new TokenValidationParameters
        {
            ValidateIssuer = true,
            ValidateAudience = true,
            ValidateLifetime = true,
            ValidateIssuerSigningKey = true,
            ValidIssuer = builder.Configuration["JWT:Issuer"],
            ValidAudience = builder.Configuration["JWT:Audience"],
            IssuerSigningKey = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(key))
        };
    });

var app = builder.Build();

// Configure the HTTP request pipeline.
if (app.Environment.IsDevelopment())
{
    app.UseSwagger();
    app.UseSwaggerUI();
    app.UseCors(builder => builder.AllowAnyOrigin().AllowAnyMethod().AllowAnyHeader());
}

Seed();

app.UseHttpsRedirection();

app.UseAuthentication();
app.UseAuthorization();
app.MapControllers();
app.Run();

void Seed()
{
    using var scope = app.Services.CreateScope();
    var dbSeeder = scope.ServiceProvider.GetRequiredService<ISeeder>();
    dbSeeder.Seed();
}

这是我的背景：

public class APIContext(DbContextOptions<APIContext> options) : IdentityDbContext<APIUser>(options)
{
    protected override void OnModelCreating(ModelBuilder builder)
    {
        base.OnModelCreating(builder);
        builder.Entity<APIUser>().ToTable("User");
        builder.Entity<IdentityRole>().ToTable("Role");
        builder.Entity<IdentityUserRole<string>>().ToTable("UserRoles");
        builder.Ignore<IdentityUserToken<string>>();
        builder.Ignore<IdentityUserClaim<string>>();
        builder.Ignore<IdentityUserLogin<string>>();
        builder.Ignore<IdentityRoleClaim<string>>();
    }

    // Entities
    public DbSet<APIUser> User { get; set; }
}

我尝试将

base.OnModelCreating(builder);

放在所有

builder.Ignore<>

下面，但没有成功。

我实际上没有收到任何错误，但每次运行迁移时我都会收到此警告，这非常烦人：D

Answer 1

注意：我通过从

DbContext

继承上下文来修复它，而不是从

IdentityDbContext

。

这是结果：

public class APIContext(DbContextOptions<APIContext> options) : DbContext(options)
{
    protected override void OnModelCreating(ModelBuilder builder)
    {
        base.OnModelCreating(builder);
        builder.Ignore<IdentityUserToken<string>>();
        builder.Ignore<IdentityUserClaim<string>>();
        builder.Ignore<IdentityUserLogin<string>>();
        builder.Ignore<IdentityRoleClaim<string>>();
        
        builder.Entity<APIUser>()
            .ToTable("User");
        builder.Entity<IdentityRole>()
            .ToTable("Role");
        builder.Entity<IdentityUserRole<string>>()
            .ToTable("UserRole")
            .HasKey(x => new { x.UserId, x.RoleId });
    }

    // Entities
    public DbSet<APIUser> User { get; set; }
    public DbSet<IdentityRole> Role { get; set; }
    public DbSet<IdentityUserRole<string>> UserRole { get; set; }
}