Scenario: An existing product line, adding new traffic line to that
product line. Attaching the children (traffic lines) to the existing
product line through helper:
ProductLine 1:M TrafficLine
newTrafficLine.ProductLine = this; //associating the child with the
parent
_productLine.TrafficLines.Add(newTrafficLine);
I now want to show the new list of newly created traffic lines on the
web page, with the newly generated ids displayed of the traffic lines:
# StartDate Amount
0 1/1/2008 100
0 2/1/2008 125
In stead of seeing the newly generated ids I only see the 0. When I
perform a save directly on the child it does return the new child's id
from the DB, like so:
_trafficLineDao.Save(newTrafficLine);
Why does it not perform the select to retrieve the newly generated id
when I SaveOrUpdate on the parent (product line)?
My mapping looks like so:
PARENT:
--------------
<?xml version="1.0" encoding="utf-8" ?>
<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2"
assembly="MyDomain" namespace="MyDomain" >
<class name="ProductLine" table="ProductLine">
<id name="Id" column="Id" type="int">
<generator class="native">
</generator>
</id>
<many-to-one name="Traffic" class="Traffic"
column="TrafficId"></
many-to-one>
<list name="TrafficLineList" table="TrafficLine"
cascade="all-delete-
orphan" lazy="true" inverse="true">
<key column="ProductLineId" />
<list-index column="SortIdx"></list-index>
<one-to-many class="TrafficLine" />
</list>
</class>
</hibernate-mapping>
CHILD:
----------
<?xml version="1.0" encoding="utf-8" ?>
<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2"
assembly="MyDomain" namespace="MyDomain" >
<class name="TrafficLine" table="TrafficLine">
<id name="Id" column="Id" type="int" >
<generator class="native">
</generator>
</id>
<property name="StartDate" column="StartDate"></property>
<property name="Amount" column="Amount"></property>
<many-to-one name="ProductLine" class="ProductLine"
column="ProductLineId" not-null="true"></many-to-one>
</class>
</hibernate-mapping>
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