【发布时间】：2010-09-15 17:29:58
【问题描述】：
我目前正在尝试在我没有权限在 SQL 2005 中创建 TABLE 的项目中使用 NHibernate。
我不断收到映射错误，我的假设是我没有通过生成表来设置表。我是否可以假设 NHibernate 只能成功映射由其工具生成的表？
如果不是，我如何确保它适用于现有表？
9 月 14 日 响应要求提供更多详细信息：
<id name="MeetingID" column="MeetingID" type="int">
<generator class="identity" />
</id>
<property name="Description" />
<property name="OwnerNetworkID" />
<property name="StartDate" />
<property name="EndDate" />
<property name="DayStartHour" />
<property name="DayStartMinute" />
<property name="DayEndHour" />
<property name="DayEndMinute" />
<property name="BreakStartHour" />
<property name="BreakStartMinute" />
<property name="BreakEndHour" />
<property name="BreakEndMinute" />
<property name="IsActive" />
<property name="SessionIntervalMinutes" />
<property name="PeoplePerSlot" />
<property name="DateCreated" />
<property name="LastModified" />
<property name="UpdatedBy" />
<property name="ChangeTimestamp" />
<property name="ClosedForBookingDaysPrior" />
<property name="DefaultMeetingRoom" />
这是课程：
命名空间我的命名空间 公开课
Private _MeetingID As Integer
Private _OwnerNetworkID As String
Private _Description As String
Public Overridable Property MeetingID() As Integer
Get
Return _MeetingID
End Get
Set(ByVal value As Integer)
_MeetingID = value
End Set
End Property
Public Overridable Property Description() As String
Get
Return _Description
End Get
Set(ByVal value As String)
_Description = value
End Set
End Property
Public Overridable Property OwnerNetworkID() As String
Get
Return _OwnerNetworkID
End Get
Set(ByVal value As String)
_OwnerNetworkID = value
End Set
End Property
Private _StartDate As Date
Public Overridable Property StartDate() As Date
Get
Return _StartDate
End Get
Set(ByVal value As Date)
_StartDate = value
End Set
End Property
Private _EndDate As Date
Public Overridable Property EndDate() As Date
Get
Return _EndDate
End Get
Set(ByVal value As Date)
_EndDate = value
End Set
End Property
Private _DayStartHour As Byte
Public Overridable Property DayStartHour() As Byte
Get
Return _DayStartHour
End Get
Set(ByVal value As Byte)
_DayStartHour = value
End Set
End Property
Private _DayStartMinute As Byte
Public Overridable Property DayStartMinute() As Byte
Get
Return _DayStartMinute
End Get
Set(ByVal value As Byte)
_DayStartMinute = value
End Set
End Property
Private _DayEndHour As Byte
Public Overridable Property DayEndHour() As Byte
Get
Return _DayEndHour
End Get
Set(ByVal value As Byte)
_DayEndHour = value
End Set
End Property
Private _DayEndMinute As Byte
Public Overridable Property DayEndMinute() As Byte
Get
Return _DayEndMinute
End Get
Set(ByVal value As Byte)
_DayEndMinute = value
End Set
End Property
Private _BreakStartHour As Byte
Public Overridable Property BreakStartHour() As Byte
Get
Return _BreakStartHour
End Get
Set(ByVal value As Byte)
_BreakStartHour = value
End Set
End Property
Private _BreakStartMinute As Byte
Public Overridable Property BreakStartMinute() As Byte
Get
Return _BreakStartMinute
End Get
Set(ByVal value As Byte)
_BreakStartMinute = value
End Set
End Property
Private _BreakEndHour As Byte
Public Overridable Property BreakEndHour() As Byte
Get
Return _BreakEndHour
End Get
Set(ByVal value As Byte)
_BreakEndHour = value
End Set
End Property
Private _BreakEndMinute As Byte
Public Overridable Property BreakEndMinute() As Byte
Get
Return _BreakEndMinute
End Get
Set(ByVal value As Byte)
_BreakEndMinute = value
End Set
End Property
Private _IsActive As Byte
Public Overridable Property IsActive() As Byte
Get
Return _IsActive
End Get
Set(ByVal value As Byte)
_IsActive = value
End Set
End Property
Private _SessionIntervalMinutes As Byte
Public Overridable Property SessionIntervalMinutes() As Byte
Get
Return _SessionIntervalMinutes
End Get
Set(ByVal value As Byte)
_SessionIntervalMinutes = value
End Set
End Property
Private _PeoplePerSlot As Short
Public Overridable Property PeoplePerSlot() As Short
Get
Return _PeoplePerSlot
End Get
Set(ByVal value As Short)
_PeoplePerSlot = value
End Set
End Property
Private _DateCreated As Date
Public Overridable Property DateCreated() As Date
Get
Return _DateCreated
End Get
Set(ByVal value As Date)
_DateCreated = value
End Set
End Property
Private _LastModified As Date
Public Overridable Property LastModified() As Date
Get
Return _LastModified
End Get
Set(ByVal value As Date)
_LastModified = value
End Set
End Property
Private _UpdatedBy As String
Public Overridable Property UpdatedBy() As String
Get
Return _UpdatedBy
End Get
Set(ByVal value As String)
_UpdatedBy = value
End Set
End Property
Private _ChangeTimestamp As Byte()
Public Overridable Property ChangeTimestamp() As Byte()
Get
Return _ChangeTimestamp
End Get
Set(ByVal value As Byte())
_ChangeTimestamp = value
End Set
End Property
Private _ClosedForBookingDaysPrior As Byte
Public Overridable Property ClosedForBookingDaysPrior() As Byte
Get
Return _ClosedForBookingDaysPrior
End Get
Set(ByVal value As Byte)
_ClosedForBookingDaysPrior = value
End Set
End Property
Private _DefaultMeetingRoom As String
Public Overridable Property DefaultMeetingRoom() As String
Get
Return _DefaultMeetingRoom
End Get
Set(ByVal value As String)
_DefaultMeetingRoom = value
End Set
End Property
End Class
结束命名空间
【问题讨论】：
-
您的假设是错误的 :) Nhibernate 适用于现有表，它不会创建表。你能粘贴你的映射吗？
-
@Claudio NHibernate 可以创建表，如果您执行 SchemaExport.Create(true, true);
-
@user 你能给我们看一个
例子吗？当然可以使用现有的表，我们只需要看看你在哪里犯了错误。 :) -
@Rafael Belliard：感谢您的澄清。这是一个角落案例。用户被困在一个更简单的场景中:)
-
嗨 Huys，我已经提供了上面的映射和 vb 类。也许你可以告诉我我的映射做错了什么。如果您也可以向我推荐我可以在现有表上使用 NHibernate 而无需重新生成的示例，这将有所帮助。
标签： nhibernate nhibernate-mapping