Asp.Net Identity - 迁移更新导致错误“数据库中已存在名为“AspNetRoles”的对象。”

问题描述 投票：0回答：1

我有一个新的 SQL Server 数据库，托管在 Microsoft Azure 中。

每当我在 Visual Studio for Mac 终端窗口中运行以下命令时：

dotnet ef migrations add "CreateProdAuthDatabase_PROD"
dotnet ef database update

我收到以下错误：

为什么会发生这种情况？我在运行迁移之前删除了 ApplicationDbContextModelSnapshot 文件，并在我运行迁移终端命令时生成了该文件的新版本。

更新 这是生成的快照文件：

// <auto-generated />

使用系统； 使用 FIRECalculator.Migrations； 使用 Microsoft.EntityFrameworkCore； 使用 Microsoft.EntityFrameworkCore.Infrastruct; 使用 Microsoft.EntityFrameworkCore.Metadata； 使用 Microsoft.EntityFrameworkCore.Storage.ValueConversion；

#可空禁用

命名空间 FIRECalculator.Migrations { [DbContext（typeof（ApplicationDbContext））] 部分类 ApplicationDbContextModelSnapshot : ModelSnapshot { protected override void BuildModel(ModelBuilder modelBuilder) { #pragma 警告禁用 612、618 模型生成器 .HasAnnotation("产品版本", "8.0.1") .HasAnnotation("关系:MaxIdentifierLength", 128);

        SqlServerModelBuilderExtensions.UseIdentityColumns(modelBuilder);

        modelBuilder.Entity("FIRECalculator.Auth.Entities.ApplicationUser", b =>
            {
                b.Property<string>("Id")
                    .HasColumnType("nvarchar(450)");

                b.Property<int>("AccessFailedCount")
                    .HasColumnType("int");

                b.Property<DateTime?>("AccountUnlockedDateTimeUtc")
                    .HasColumnType("datetime2");

                b.Property<DateTime?>("BirthdayDateTime")
                    .HasColumnType("datetime2");

                b.Property<int?>("BirthdayDay")
                    .HasColumnType("int");

                b.Property<int?>("BirthdayMonth")
                    .HasColumnType("int");

                b.Property<int?>("BirthdayYear")
                    .HasColumnType("int");

                b.Property<string>("City")
                    .HasColumnType("nvarchar(max)");

                b.Property<string>("ConcurrencyStamp")
                    .IsConcurrencyToken()
                    .HasColumnType("nvarchar(max)");

                b.Property<string>("Email")
                    .HasMaxLength(256)
                    .HasColumnType("nvarchar(256)");

                b.Property<bool>("EmailConfirmed")
                    .HasColumnType("bit");

                b.Property<DateTime?>("EmailConfirmedDateTimeUtc")
                    .HasColumnType("datetime2");

                b.Property<string>("FirstName")
                    .HasColumnType("nvarchar(max)");

                b.Property<bool?>("IsBanned")
                    .HasColumnType("bit");

                b.Property<bool?>("IsSubscribedToNewsletter")
                    .HasColumnType("bit");

                b.Property<string>("LastName")
                    .HasColumnType("nvarchar(max)");

                b.Property<bool>("LockoutEnabled")
                    .HasColumnType("bit");

                b.Property<DateTimeOffset?>("LockoutEnd")
                    .HasColumnType("datetimeoffset");

                b.Property<string>("NormalizedEmail")
                    .HasMaxLength(256)
                    .HasColumnType("nvarchar(256)");

                b.Property<string>("NormalizedUserName")
                    .HasMaxLength(256)
                    .HasColumnType("nvarchar(256)");

                b.Property<bool?>("OverrideAndIgnoreSubscriptionTier")
                    .HasColumnType("bit");

                b.Property<DateTime?>("OverrideAndIgnoreSubscriptionTierEndDateTimeUtc")
                    .HasColumnType("datetime2");

                b.Property<DateTime?>("OverrideAndIgnoreSubscriptionTierStartDateTimeUtc")
                    .HasColumnType("datetime2");

                b.Property<string>("PasswordHash")
                    .HasColumnType("nvarchar(max)");

                b.Property<string>("PhoneNumber")
                    .HasColumnType("nvarchar(max)");

                b.Property<bool>("PhoneNumberConfirmed")
                    .HasColumnType("bit");

                b.Property<byte[]>("ProfilePicture")
                    .HasColumnType("varbinary(max)");

                b.Property<string>("SecurityStamp")
                    .HasColumnType("nvarchar(max)");

                b.Property<DateTime?>("SubscriptionTierExpiresDateTimeUtc")
                    .HasColumnType("datetime2");

                b.Property<string>("SubscriptionTierFrequency")
                    .HasColumnType("nvarchar(max)");

                b.Property<DateTime?>("SubscriptionTierPaymentDateTimeUtc")
                    .HasColumnType("datetime2");

                b.Property<DateTime?>("SubscriptionTierStartDateTimeUtc")
                    .HasColumnType("datetime2");

                b.Property<string>("SubscriptionTierType")
                    .HasColumnType("nvarchar(max)");

                b.Property<bool>("TwoFactorEnabled")
                    .HasColumnType("bit");

                b.Property<bool?>("UserAccountIsLockedOut")
                    .HasColumnType("bit");

                b.Property<string>("UserName")
                    .HasMaxLength(256)
                    .HasColumnType("nvarchar(256)");

                b.HasKey("Id");

                b.HasIndex("NormalizedEmail")
                    .HasDatabaseName("EmailIndex");

                b.HasIndex("NormalizedUserName")
                    .IsUnique()
                    .HasDatabaseName("UserNameIndex")
                    .HasFilter("[NormalizedUserName] IS NOT NULL");

                b.ToTable("AspNetUsers", (string)null);
            });

        modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityRole", b =>
            {
                b.Property<string>("Id")
                    .HasColumnType("nvarchar(450)");

                b.Property<string>("ConcurrencyStamp")
                    .IsConcurrencyToken()
                    .HasColumnType("nvarchar(max)");

                b.Property<string>("Name")
                    .HasMaxLength(256)
                    .HasColumnType("nvarchar(256)");

                b.Property<string>("NormalizedName")
                    .HasMaxLength(256)
                    .HasColumnType("nvarchar(256)");

                b.HasKey("Id");

                b.HasIndex("NormalizedName")
                    .IsUnique()
                    .HasDatabaseName("RoleNameIndex")
                    .HasFilter("[NormalizedName] IS NOT NULL");

                b.ToTable("AspNetRoles", (string)null);
            });

        modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityRoleClaim<string>", b =>
            {
                b.Property<int>("Id")
                    .ValueGeneratedOnAdd()
                    .HasColumnType("int");

                SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));

                b.Property<string>("ClaimType")
                    .HasColumnType("nvarchar(max)");

                b.Property<string>("ClaimValue")
                    .HasColumnType("nvarchar(max)");

                b.Property<string>("RoleId")
                    .IsRequired()
                    .HasColumnType("nvarchar(450)");

                b.HasKey("Id");

                b.HasIndex("RoleId");

                b.ToTable("AspNetRoleClaims", (string)null);
            });

        modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserClaim<string>", b =>
            {
                b.Property<int>("Id")
                    .ValueGeneratedOnAdd()
                    .HasColumnType("int");

                SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));

                b.Property<string>("ClaimType")
                    .HasColumnType("nvarchar(max)");

                b.Property<string>("ClaimValue")
                    .HasColumnType("nvarchar(max)");

                b.Property<string>("UserId")
                    .IsRequired()
                    .HasColumnType("nvarchar(450)");

                b.HasKey("Id");

                b.HasIndex("UserId");

                b.ToTable("AspNetUserClaims", (string)null);
            });

        modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserLogin<string>", b =>
            {
                b.Property<string>("LoginProvider")
                    .HasColumnType("nvarchar(450)");

                b.Property<string>("ProviderKey")
                    .HasColumnType("nvarchar(450)");

                b.Property<string>("ProviderDisplayName")
                    .HasColumnType("nvarchar(max)");

                b.Property<string>("UserId")
                    .IsRequired()
                    .HasColumnType("nvarchar(450)");

                b.HasKey("LoginProvider", "ProviderKey");

                b.HasIndex("UserId");

                b.ToTable("AspNetUserLogins", (string)null);
            });

        modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserRole<string>", b =>
            {
                b.Property<string>("UserId")
                    .HasColumnType("nvarchar(450)");

                b.Property<string>("RoleId")
                    .HasColumnType("nvarchar(450)");

                b.HasKey("UserId", "RoleId");

                b.HasIndex("RoleId");

                b.ToTable("AspNetUserRoles", (string)null);
            });

        modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserToken<string>", b =>
            {
                b.Property<string>("UserId")
                    .HasColumnType("nvarchar(450)");

                b.Property<string>("LoginProvider")
                    .HasColumnType("nvarchar(450)");

                b.Property<string>("Name")
                    .HasColumnType("nvarchar(450)");

                b.Property<string>("Value")
                    .HasColumnType("nvarchar(max)");

                b.HasKey("UserId", "LoginProvider", "Name");

                b.ToTable("AspNetUserTokens", (string)null);
            });

        modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityRoleClaim<string>", b =>
            {
                b.HasOne("Microsoft.AspNetCore.Identity.IdentityRole", null)
                    .WithMany()
                    .HasForeignKey("RoleId")
                    .OnDelete(DeleteBehavior.Cascade)
                    .IsRequired();
            });

        modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserClaim<string>", b =>
            {
                b.HasOne("FIRECalculator.Auth.Entities.ApplicationUser", null)
                    .WithMany()
                    .HasForeignKey("UserId")
                    .OnDelete(DeleteBehavior.Cascade)
                    .IsRequired();
            });

        modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserLogin<string>", b =>
            {
                b.HasOne("FIRECalculator.Auth.Entities.ApplicationUser", null)
                    .WithMany()
                    .HasForeignKey("UserId")
                    .OnDelete(DeleteBehavior.Cascade)
                    .IsRequired();
            });

        modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserRole<string>", b =>
            {
                b.HasOne("Microsoft.AspNetCore.Identity.IdentityRole", null)
                    .WithMany()
                    .HasForeignKey("RoleId")
                    .OnDelete(DeleteBehavior.Cascade)
                    .IsRequired();

                b.HasOne("FIRECalculator.Auth.Entities.ApplicationUser", null)
                    .WithMany()
                    .HasForeignKey("UserId")
                    .OnDelete(DeleteBehavior.Cascade)
                    .IsRequired();
            });

        modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserToken<string>", b =>
            {
                b.HasOne("FIRECalculator.Auth.Entities.ApplicationUser", null)
                    .WithMany()
                    .HasForeignKey("UserId")
                    .OnDelete(DeleteBehavior.Cascade)
                    .IsRequired();
            });

#pragma 警告恢复 612、618 } } }

...这里是ApplicationUser，它继承自IdentityUser：

public sealed class ApplicationUser : IdentityUser

{ 公共字符串？名字 { 得到;放; }

public string? LastName { get; set; }

public string? City { get; set; }

public byte[]? ProfilePicture { get; set; }

public DateTime? EmailConfirmedDateTimeUtc { get; set; }

public bool? UserAccountIsLockedOut { get; set; }

public DateTime? AccountUnlockedDateTimeUtc { get; set; }

public bool? IsBanned { get; set; }
public int? BirthdayDay { get; set; }
public int? BirthdayMonth { get; set; }
public int? BirthdayYear { get; set; }
public DateTime? BirthdayDateTime { get; set; }
public bool? IsSubscribedToNewsletter { get; set; }
public string? SubscriptionTierType { get; set; } //(FREE, Pro, Premium)
public DateTime? SubscriptionTierStartDateTimeUtc { get; set; }
public DateTime? SubscriptionTierExpiresDateTimeUtc { get; set; }
public DateTime? SubscriptionTierPaymentDateTimeUtc { get; set; }
public string? SubscriptionTierFrequency { get; set; } //(Monthly/Annual)
public bool? OverrideAndIgnoreSubscriptionTier { get; set; }
public DateTime? OverrideAndIgnoreSubscriptionTierStartDateTimeUtc { get; set; }
public DateTime? OverrideAndIgnoreSubscriptionTierEndDateTimeUtc { get; set; }

}

更新2：

这是ApplicationDbContext 文件：

public class ApplicationDbContext : IdentityDbContext<ApplicationUser>

{ 公共ApplicationDbContext（DbContextOptions选项）：基础（选项）{}

protected override void OnModelCreating(ModelBuilder builder)
{
    base.OnModelCreating(builder);
    // Customize the ASP.NET Identity model and override the defaults if needed.
    // For example, you can rename the ASP.NET Identity table names and more.
    // Add your customizations after calling base.OnModelCreating(builder);
}

}

更新3：

这是我的 Program.cs 文件中的一些关键代码：

builder.Services.AddIdentityCore<ApplicationUser>()
.AddRoles<IdentityRole>()
.AddEntityFrameworkStores<ApplicationDbContext>()
.AddSignInManager()
.AddDefaultTokenProviders();

如有任何帮助，我们将不胜感激？

asp.net-mvc asp.net-core asp.net-identity database-migration entity-framework-migrations
1个回答
0
投票

在再次运行迁移之前，我通过删除 IdentitySchema.Designer.cs 文件解决了此问题。

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