EntityHistoryHelper.ShouldSavePropertyHistory 更新记录时抛出 null 异常

Question

使用 MVC jQuery、.NET Core、ABP v3.5.0。

实体历史已启用：Configuration.EntityHistory.IsEnabled = true;

我使用 t-sql 将一些数据直接插入到 table 中。如果我随后尝试通过网络应用程序更新其中一条记录，我会看到抛出的异常：

System.NullReferenceException: Object reference not set to an instance of an object.

System.NullReferenceException: Object reference not set to an instance of an object.
   at Abp.EntityHistory.EntityHistoryHelper.ShouldSavePropertyHistory(PropertyEntry propertyEntry, Boolean defaultValue) in D:\Github\aspnetboilerplate\src\Abp.ZeroCore.EntityFrameworkCore\EntityHistory\EntityHistoryHelper.cs:line 292
   at Abp.EntityHistory.EntityHistoryHelper.GetPropertyChanges(EntityEntry entityEntry) in D:\Github\aspnetboilerplate\src\Abp.ZeroCore.EntityFrameworkCore\EntityHistory\EntityHistoryHelper.cs:line 210
   at Abp.EntityHistory.EntityHistoryHelper.CreateEntityChangeInfo(EntityEntry entityEntry) in D:\Github\aspnetboilerplate\src\Abp.ZeroCore.EntityFrameworkCore\EntityHistory\EntityHistoryHelper.cs:line 160
   at Abp.EntityHistory.EntityHistoryHelper.CreateEntityChangeSet(ICollection`1 entityEntries) in D:\Github\aspnetboilerplate\src\Abp.ZeroCore.EntityFrameworkCore\EntityHistory\EntityHistoryHelper.cs:line 95
   at Abp.Zero.EntityFrameworkCore.AbpZeroCommonDbContext`3.<SaveChangesAsync>d__98.MoveNext()
--- End of stack trace from previous location where exception was thrown ---

我禁用了实体历史并删除了实体历史选择器，更新现在再次对使用 t-sql.

直接插入 table 的记录起作用

Configuration.EntityHistory.IsEnabled = false;

//Configuration.EntityHistory.Selectors.Add(
//    new NamedTypeSelector(
//        "Abp.AuditedEntity",
//        type => typeof(IAudited).IsAssignableFrom(type)
//    )
//);

实体历史功能是否依赖于必须通过网络应用程序插入的数据？

Answer 1

Is the Entity History feature dependent upon the data having to be inserted via the web app?

没有

这已在 ABP v3.6.0 中修复：#3314

As the documentation says PropertyInfo can be null for shadow properties or properties mapped directly to fields.

本质上，这涉及 null 签入 EntityHistoryHelper.cs:

// if (propertyInfo.IsDefined(typeof(DisableAuditingAttribute), true))
   if (propertyInfo != null &&
       propertyInfo.IsDefined(typeof(DisableAuditingAttribute), true))

EntityHistoryHelper.ShouldSavePropertyHistory 更新记录时抛出 null 异常

EntityHistoryHelper.ShouldSavePropertyHistory throws null exception when updating record

c#

nullreferenceexception

aspnetboilerplate