Question

我在MsSQL2012中有一个简单的数据库，有两个表我就是这样创建的：

CREATE TABLE Company
(
 Id int NOT NULL IDENTITY,
 Name varchar(255),
 PRIMARY KEY (Id) 
)    

CREATE TABLE Department
(
 Id int NOT NULL PRIMARY KEY IDENTITY,
 Name varchar(255),
 Company_Id int NOT NULL,
 FOREIGN KEY (Company_Id) REFERENCES Company(Id)
);

相应的城堡活动记录类：

公司

[ActiveRecord]
    public class Company : ActiveRecordBase<Company>
    {
        [PrimaryKey]
        public int Id { get; set; }

        [Property]
        public string Name { get; set; }

        [HasMany(typeof(Department))]
        public IList<Department> Departments { get; set; }
    }

系

[ActiveRecord]
    public class Department : ActiveRecordBase<Department>
    {
        [PrimaryKey]
        public int Id { get; set; }

        [Property]
        public string Name { get; set; }

        [HasMany(typeof(Employee))]
        public IList<Employee> Employees { get; set; }

        [BelongsTo(Type = typeof(Company), Column = "Id")]
        public Company Company
        {
            get; set;
        }
    }

获得公司和部门的C＃代码：

 ActiveRecordStarter.Initialize(ActiveRecordSectionHandler.Instance, typeof(Company), typeof(Department));
 var companys = Company.FindAll();//ALL IS FINE, I get a list of companies
 var departments = Department.FindAll();//HERE IS EXCEPTION

异常：

未处理的例外情况：   Castle.ActiveRecord.Framework.ActiveRecordException：无法执行   FindAll for Department ---＆gt; NHibernate.ObjectNotFoundException：没有行   使用给定的标识符e xists [ActiveRecordDemo.Domain.Company＃4]
  在   NHibernate.Impl.SessionFactoryImpl.DefaultEntityNotFoundDelegate.HandleEntityNotFound（字符串   entityName，Object id）at   NHibernate.Event.Default.DefaultLoadEventListener.Load（比如LoadEvent   event，IEntityPersister persister，EntityKey keyToLoad，LoadType   选项）at   NHibernate.Event.Default.DefaultLoadEventListener.ProxyOrLoad（比如LoadEvent   event，IEntityPersister persister，EntityKey keyToLoad，LoadType   选项）at   NHibernate.Event.Default.DefaultLoadEventListener.OnLoad（比如LoadEvent   event，LoadType loadType）at   NHibernate.Impl.SessionImpl.FireLoad（LoadEvent事件，LoadType   loadType）at NHibernate.Impl.SessionImpl.InternalLoad（String   entityName，Object id，Boolean eager，Boolean isNullable）at   NHibernate.Type.EntityType.ResolveIdentifier（Object id，   ISessionImplementor会议）   NHibernate.Type.EntityType.ResolveIdentifier（对象值，   ISessionImplementor session，Object owner）at   NHibernate.Engine.TwoPhaseLoad.InitializeEntity（Object entity，Boolean   readOnly，ISessionImplementor session，PreLoadEvent preLoadEvent，   PostLoadEvent postLoadEvent）at   NHibernate.Loader.Loader.InitializeEntitiesAndCollections（IList的   hydratedObjects，Object resultSetId，ISessionImplementor session，   布尔值readOnly）at   NHibernate.Loader.Loader.DoQuery（ISessionImplementor session，   QueryParameters queryParameters，Boolean returnProxies）at   NHibernate.Loader.Loader.DoQueryAndInitializeNonLazyCollections（ISessionImplementor   session，QueryParameters queryParameters，Boolean returnProxies）at   NHibernate.Loader.Loader.DoList（ISessionImplementor session，   QueryParameters queryParameters）at   NHibernate.Loader.Loader.ListIgnoreQueryCache（ISessionImplementor   session，QueryParameters queryParameters）at   NHibernate.Loader.Loader.List（ISessionImplementor session，   QueryParameters queryParameters，ISet 1 querySpaces, IType[] resultTypes) at NHibernate.Loader.Criteria.CriteriaLoader.List(ISessionImplementor session) at NHibernate.Impl.SessionImpl.List(CriteriaImpl criteria, IList results) at NHibernate.Impl.CriteriaImpl.List(IList results) at NHibernate.Impl.CriteriaImpl.List() at Castle.ActiveRecord.ActiveRecordBase.FindAll(Type targetType, DetachedCriteria detachedCriteria, Order[] orders) --- End of inner exception stack trace --- at Castle.ActiveRecord.ActiveRecordBase.FindAll(Type targetType, DetachedCriteria detachedCriteria, Order[] orders) at Castle.ActiveRecord.ActiveRecordBase.FindAll(Type targetType) at Castle.ActiveRecord.ActiveRecordBase 1.FindAll（）

当我得到公司一切都没问题，但是检索部门我得到了上述异常。我犯了什么错误？

Answer 1

我可以通过将 NotFoundBehaviour .Ignore参数添加到 BelongsToAttribute 来消除此异常：

[BelongsTo(Type = typeof(Company), Column = "Id", NotFoundBehaviour = NotFoundBehaviour.Ignore)]

和

[BelongsTo(Type = typeof(Department), Column = "Id", NotFoundBehaviour = NotFoundBehaviour.Ignore)]

不确定它是解决方案还是解决方法）但是一切正常并且所有单元测试都通过了。

尝试使用Castle Active Record检索行时的NHibernate.ObjectNotFoundException

1 个答案: