On Wed, Oct 7, 2009 at 12:55 PM, harryh <[email protected]> wrote:

>
> I have a long field in my database that I want to have a unique index
> (enforced by the database).  Sometimes this field will be empty, in
> which case I'd like to set it to NULL.  0 won't work because that
> won't work with the unique index.
>
> MappedLong appears to be converting null to 0 internally.
> Additionally overriding defaultValue for the field and returning null
> does not appear to work.
>
> Is this by design?


Yes.


> Is it possible that I am misunderstanding something
> here?
>

I think you're looking for a MappedOptLong which will treat None (or Empty)
as NULL and Some(Long) as the value.

Please open a ticket and I'll add the code.

>
> -harryh
>
> >
>


-- 
Lift, the simply functional web framework http://liftweb.net
Beginning Scala http://www.apress.com/book/view/1430219890
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