Question

我有3个非常简单的模型。

public abstract class User : IEntity
{
    [Key, DatabaseGenerated(DatabaseGeneratedOption.Identity)]
    public int Id { get; set; }

    [StringLength(40)]
    public string UserName { get; set; }

    [StringLength(40)]
    public string FirstName { get; set; }

    [StringLength(40)]
    public string LastName { get; set; }

    /// <summary>
    /// Password as SHA256
    /// </summary>
    [StringLength(64)]
    public string Password { get; set; }

    public virtual ICollection<SocialAccount> SocialLogins { get; set; }
}

public class Student : User
{
    public string Test { get; set; }
}
public class Teacher : User
{
    public string Qwert { get; set; }
}

执行代码

                Database.SetInitializer(new DropCreateDatabaseIfModelChanges<RelationalDatabase>());

                var rel = new RelationalDatabase();

                rel.Users.Add(
                    new Teacher
                        {
                            FirstName = "Hayri",
                            LastName = "Tüfekçilerli",
                            UserName = "hayri",
                            Password = "asdnfaksjnfkasjfn"
                        });
                rel.SaveChanges();

错误：

Nancy.RequestExecutionException：哦，不！ ---＆GT; System.NotSupportedException：类型＆＃39; GoAndTeach.Models.Student＆＃39;和类型＆＃39; GoAndTeach.Models.Student＆＃39;两者都有相同的简单名称＆＃39;学生＆＃39;所以不能在同一型号中使用。所有类型的给定模型必须具有唯一的简单名称。使用＆＃39; NotMappedAttribute＆＃39;要么在Code First Fluent API中调用Ignore以明确排除a 属性或类型来自模型。在 System.Data.Entity.ModelConfiguration.Mappers.TypeMapper.GetExistingEdmType [的EntityType] （System.Data.Entity.Core.Metadata.Edm.EdmModel model，System.Type type）[0x00000] in：0 at System.Data.Entity.ModelConfiguration.Mappers.TypeMapper.MapEntityType （System.Type类型）[0x00000] in：0 at System.Data.Entity.ModelConfiguration.Mappers.TypeMapper.MapDerivedTypes （System.Type类型，System.Data.Entity.Core.Metadata.Edm.EntityType entityType）[0x00000] in：0 at System.Data.Entity.ModelConfiguration.Mappers.TypeMapper.MapEntityType （System.Type类型）[0x00000] in：0 at System.Data.Entity.DbModelBuilder +＆lt;＆gt; c_ DisplayClassd.b _7（System.Type type）[0x00000] in：0 at System.Linq.Enumerable + c__Iterator33 1[System.Type].MoveNext () [0x00000] in :0 at System.Data.Entity.Utilities.IEnumerableExtensions.Each[Type] (IEnumerable 1 ts，System.Action 1 action) [0x00000] in :0 at System.Data.Entity.DbModelBuilder.MapTypes (System.Data.Entity.Core.Metadata.Edm.EdmModel model) [0x00000] in :0 at System.Data.Entity.DbModelBuilder.Build (System.Data.Entity.Core.Common.DbProviderManifest providerManifest, System.Data.Entity.Infrastructure.DbProviderInfo providerInfo) [0x00000] in :0 at System.Data.Entity.DbModelBuilder.Build (System.Data.Common.DbConnection providerConnection) [0x00000] in :0 at System.Data.Entity.Internal.LazyInternalContext.CreateModel (System.Data.Entity.Internal.LazyInternalContext internalContext) [0x00000] in :0 at System.Data.Entity.Internal.RetryLazy 2 [System.Data.Entity.Internal.LazyInternalContext，System.Data.Entity.Infrastructure.DbCompiledModel] .GetValue （System.Data.Entity.Internal.LazyInternalContext输入）[0x00000] in ：0 ---内部异常堆栈跟踪结束--- at Nancy.NancyEngine.InvokeOnErrorHook（Nancy.NancyContext context， Nancy.ErrorPipeline管道，System.Exception ex）[0x00000] in：0

相同的程序集，相同的代码适用于.Net Framework 4.5。在单声道上，我得到了那个奇怪的错误。

实体框架版本：6.1 MysqlConnector版本：6.8.3.2

我该如何解决这个问题？

单声道上的实体框架System.NotSupportedException

0 个答案: