我正在尝试映射具有组合键的表并映射引用该表的另一个表。
假设这些表:
-
ITEMDELIVERY
with relevant columns:
ITEMDELIVERY_ID
DELIVERY_DATE
-
ITEMDELIVERYDETAIL
with relevant columns:
ITEMDELIVERYDETAIL_ID
ITEMDELIVERY_ID
PARTITIONDATE
列ITEMDELIVERY.ITEMDELIVERY_ID
and ITEMDELIVERY.DELIVERY_DATE
共同构成PK。
列ITEMDELIVERYDETAIL.ITEMDELIVERY_ID
and ITEMDELIVERYDETAIL.PARTITIONDATE
形成 FK 从ITEMDELIVERYDETAIL
to ITEMDELIVERY
.
我该如何映射这个?
我尝试了以下方法:
IAutoMappingOverride<ItemDeliveryDetail>
:
mapping.References(x => x.ItemDelivery)
.Columns("ITEMDELIVERY_ID", "PARTITIONDATE");
IAutoMappingOverride<ItemDelivery>
:
mapping.CompositeId().KeyProperty(x => x.Id, "ITEMDELIVERY_ID")
.KeyProperty(x => x.DeliveryDate, "DELIVERY_DATE");
但这不起作用,它会导致System.InvalidCastException: Invalid cast from 'DateTime' to 'Double'.
打电话时SaveOrUpdate
在会议上。
UPDATE:
我刚刚检查了生成的 SQL,它显示 NHibernate 以某种方式切换了值:
INSERT INTO ITEMDELIVERYDETAIL
(ITEMDELIVERYDETAIL_ID, AMOUNT, PROCESSED_BY_REM, SINGLE_ITEM_PRICE,
ITEMDELIVERY_ID, PARTITIONDATE, SupplierInvoice_id)
VALUES (hibernate_sequence.nextval, :p0, :p1, :p2,
:p3, :p4, :p5)
returning ITEMDELIVERYDETAIL_ID into :nhIdOutParam;
:p0 = 20.12.2011 16:29:44 [Type: Double (0)],
:p1 = 6 [Type: DateTime (0)],
:p2 = 21.12.2011 16:29:44 [Type: Double (0)],
:p3 = 7 [Type: Int32 (0)],
:p4 = 0 [Type: DateTime (0)],
:p5 = 19.12.2011 16:29:44 [Type: Int32 (0)],
:nhIdOutParam = 27638398 [Type: Int32 (0)]
正如你所看到的,参数完全是一团糟......
他们应该是这样的:
:p0 = 6 [Type: Double (0)],
:p1 = 21.12.2011 16:29:44 [Type: DateTime (0)],
:p2 = 7 [Type: Double (0)],
:p3 = 0 [Type: Int32 (0)],
:p4 = 19.12.2011 16:29:44 [Type: DateTime (0)],
:p5 = 27638398 [Type: Int32 (0)],
:nhIdOutParam = NULL [Type: Int32 (0)]