Entity inheritance (TPT) with EF6 EntityHistoryHelper

.net framework 4.6.2 abp mvc5.x 4.10.1 This problem does not exist in version 4.9

I want to implement a generic tree structure of data on an OrganizationUnit basis Therefore,using EF’s TPT

the following entities are defined:

//Entities ----------------------------------------------------------------------------------------------
public class TreeEntity : OrganizationUnit, IExtendableObject
{
        public int OrderIndex { get; set; }
        public string ExtensionData { get; set; }
}

[Table("ABPDataDictionaries")]
public class DataDictionaryEntity : TreeEntity
{
        public bool IsTree { get; set; }
        public bool IsSysDefine { get; set; }
}

//DbContexxt ----------------------------------------------------------------------------------------------
public class ABPDbContext : AbpZeroDbContext<Tenant, Role, User>
{
        public virtual DbSet<DataDictionaryEntity> DataDictionaries { get; set; }
}

//General AppService--------------------------------------------------------------------------------------
public abstract class TreeDataAppServiceBase<TEntity, TDto, TEditDto> : ABPAppServiceBase
        where TEntity : TreeEntity, IExtendableObject
        where TDto : TreeDataBaseDto<TDto>, new()
        where TEditDto : TreeNodeEditBaseDto
    {
        protected readonly OrganizationUnitManager organizationUnitManager;
        protected readonly IRepository<TEntity, long> ownRepository;

        public TreeDataAppServiceBase(
            IRepository<OrganizationUnit, long> repository,
            OrganizationUnitManager organizationUnitManager,
            IRepository<TEntity, long> ownRepository
        {
            this.organizationUnitManager = organizationUnitManager;
            this.ownRepository = ownRepository;
        }

        public virtual async Task<TDto> CreateAsync(TEditDto input)
        {
            if (input.ParentId == 0)
                input.ParentId = null;

            var m = ObjectMapper.Map<TEntity>(input);
            if (input.ExtData != null)
            {
                foreach (var item in input.ExtData)
                {
                    m.SetData(item.Key, item.Value);
                }
            }
            //分布式环境可能不会达到预期结果，但是对系统影响不大
            if (m.OrderIndex == 0)
                m.OrderIndex = (await ownRepository.GetAll()
                    .Where(c => c.ParentId == m.ParentId)
                    .OrderByDescending(c => c.OrderIndex)
                    .Select(c => c.OrderIndex)
                    .FirstOrDefaultAsync()) + 1;

            await BeforeCreate(m);
            await organizationUnitManager.CreateAsync(m);
            await CurrentUnitOfWork.SaveChangesAsync(); //here trow exception
            return ObjectMapper.Map<TDto>(m);
        }

//other code

appservice subclass:-------------------------------------------------------------------------------------
public class DataDictionaryAppService
        : TreeDataAppServiceBase<DataDictionaryEntity, DataDictionaryDto, EditDataDictionaryDto>,
        IDataDictionaryAppService
    {
        public DataDictionaryAppService(
            IRepository<OrganizationUnit, long> repository,
            OrganizationUnitManager organizationUnitManager,
            IRepository<DataDictionaryEntity, long> userOrganizationUnitRepository)
            : base(repository, organizationUnitManager, userOrganizationUnitRepository)
        {
        }

Data table generation OK

when I call DataDictionaryAppService.CreateAsync，I got the following exception note: [sequence matching element does not contain any]=[序列不包含任何匹配元素]

ERROR 2019-11-06 00:44:31,254 [29   ] nHandling.AbpApiExceptionFilterAttribute - 序列不包含任何匹配元素
System.InvalidOperationException: 序列不包含任何匹配元素
   在 System.Linq.Enumerable.Single[TSource](IEnumerable`1 source, Func`2 predicate)
   在 Abp.EntityHistory.EntityHistoryHelper.GetEntitySet(ObjectContext context, EntityType entityType)
   在 Abp.EntityHistory.EntityHistoryHelper.CreateEntityChangeSet(DbContext context)
   在 Abp.Zero.EntityFramework.AbpZeroCommonDbContext`2.<SaveChangesAsync>d__104.MoveNext()
--- 引发异常的上一位置中堆栈跟踪的末尾 ---
   在 System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   在 System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   在 Abp.EntityFramework.Uow.EfUnitOfWork.<SaveChangesInDbContextAsync>d__19.MoveNext()
--- 引发异常的上一位置中堆栈跟踪的末尾 ---
   在 System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   在 System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   在 Abp.EntityFramework.Uow.EfUnitOfWork.<SaveChangesAsync>d__12.MoveNext()
--- 引发异常的上一位置中堆栈跟踪的末尾 ---
   在 System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   在 System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   在 System.Runtime.CompilerServices.TaskAwaiter.GetResult()
   在 ZLJ.TreeDataAppServiceBase`3.<CreateAsync>d__10.MoveNext()
--- 引发异常的上一位置中堆栈跟踪的末尾 ---
   在 System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   在 System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   在 Abp.Threading.InternalAsyncHelper.<AwaitTaskWithPostActionAndFinallyAndGetResult>d__5`1.MoveNext()
--- 引发异常的上一位置中堆栈跟踪的末尾 ---
   在 System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   在 System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   在 Abp.Threading.InternalAsyncHelper.<AwaitTaskWithFinallyAndGetResult>d__3`1.MoveNext()
--- 引发异常的上一位置中堆栈跟踪的末尾 ---
   在 System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   在 System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   在 System.Threading.Tasks.TaskHelpersExtensions.<CastToObject>d__1`1.MoveNext()
--- 引发异常的上一位置中堆栈跟踪的末尾 ---
   在 System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   在 System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   在 System.Web.Http.Controllers.ApiControllerActionInvoker.<InvokeActionAsyncCore>d__1.MoveNext()
--- 引发异常的上一位置中堆栈跟踪的末尾 ---
   在 System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   在 System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   在 Abp.WebApi.Uow.AbpApiUowFilter.<ExecuteActionFilterAsync>d__6.MoveNext()
--- 引发异常的上一位置中堆栈跟踪的末尾 ---
   在 System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   在 System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   在 Abp.WebApi.Validation.AbpApiValidationFilter.<ExecuteActionFilterAsync>d__5.MoveNext()
--- 引发异常的上一位置中堆栈跟踪的末尾 ---
   在 System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   在 System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   在 Abp.WebApi.Auditing.AbpApiAuditFilter.<ExecuteActionFilterAsync>d__6.MoveNext()
--- 引发异常的上一位置中堆栈跟踪的末尾 ---
   在 System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   在 System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   在 System.Web.Http.Controllers.ActionFilterResult.<ExecuteAsync>d__5.MoveNext()
--- 引发异常的上一位置中堆栈跟踪的末尾 ---
   在 System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   在 System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   在 Abp.WebApi.Security.AntiForgery.AbpAntiForgeryApiFilter.<ExecuteAuthorizationFilterAsync>d__10.MoveNext()
--- 引发异常的上一位置中堆栈跟踪的末尾 ---
   在 System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   在 System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   在 Abp.WebApi.Authorization.AbpApiAuthorizeFilter.<ExecuteAuthorizationFilterAsync>d__7.MoveNext()
--- 引发异常的上一位置中堆栈跟踪的末尾 ---
   在 System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   在 System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   在 System.Web.Http.Controllers.ExceptionFilterResult.<ExecuteAsync>d__6.MoveNext()

[bxjg1987]

I tested it with the startup template, here repsitory but the problem is still the same, so prepare to wait for v4.11, thank you!

[demirmusa]

hi @bxjg1987, Yes v4.11 released and it contains that enhancement too. v4.11.0