Thomas,
We, as a rule, do not accept patches. For a complete discussion, please
see:
http://groups.google.com/group/liftweb/browse_frm/thread/0c7a97cbf60780f0?hl=en#
The current state of mapper's primary key support is sub-optimal. There
have been a couple of discussions of the issues on-list. I am hoping to
spend some time on this issue on Thursday. If you've got specific
requirements or specific tests, please post them.
Thanks,
David
On Mon, Sep 21, 2009 at 9:33 PM, Thomas Rampelberg <pyronic...@gmail.com>wrote:
>
> I've been working at getting MetaMapper to work with primary keys that
> aren't auto-generated (or longs). Towards this end, I've got a patch
> for MetaMapper.scala that I'd like to get in. Who could I talk about
> the process for that?
>
> In addition, as part of implementing the functionality, I ran into
> some interesting problems. The most interesting one has to do with
> dbIndexFieldIndicatesSaved_?. The default (i_is_! != defaultValue)
> works great for cases where you're using the default value for the
> actual primary key. Unfortunately, if you use something like this when
> you're actively setting the primary key yourself there are some
> unfortunate side effects (nothing gets saved to the database).
>
> To get around this, I'm doing something along these lines:
>
> class InfoHashPrimaryKey[T<:Mapper[T]] (
> override val fieldOwner: T) extends MappedStringPrimaryKey[T] (
> fieldOwner, 20) with LifecycleCallbacks {
> private var _saved = false
> override def dbIndexFieldIndicatesSaved_? = _saved
> override def afterSave = _saved = true
> }
>
> Would there happen to be a better way to do this? Leveraging an
> afterSave hook seems like potential overkill.
>
> >
>
--
Lift, the simply functional web framework http://liftweb.net
Beginning Scala http://www.apress.com/book/view/1430219890
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