On 27/03/2013 10:42, Markus Demetz wrote:
Hi,
I have situations, where the getId() method of my model class returns
null
when navigating through OGNL e.g. when
calling <s:property value="#user.gallery.id"/>.
Have you tried <s:property value="user.gallery.id"/> or <s:property
value="%{user.gallery.id}"/>
No luck :-(
I also tried with JSTL now without success.
It's very strange, since sometimes it works and then it reappears again.
I'll ask at the hibernate forum.
Regards,
Markus
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I've seen this behavior on newly created instances. Hibernate doesn't
know the ID until the object is persisted to the DB. Hibernate tries to
delay this as long as possible to minimise DB writes. You would have
thought a request for the ID would force a DB write but Hibernate
doesn't seem to implement this behavior. If you want the ID you need to
force the DB write first.
Steve
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