Thanks. Types are still largely a mystery to me, but this works just fine.
Chas. Derek Chen-Becker wrote: > Because it's type erasure I don't think I can do a generic "new" inside > the methods, but the findOne method does return a Can. That means that > you were actually pretty close in your demo code. Here's what it could > look like: > > val user: User = > Model.createNamedQuery[User]( > "findUserByUsername", > "username" -> "hal" > ).findOne or (new User) > > Derek > > On Mon, Dec 1, 2008 at 2:24 AM, Charles F. Munat <[EMAIL PROTECTED] > <mailto:[EMAIL PROTECTED]>> wrote: > > > That will probably work. I was thinking it would be nice to build in a > method findOrNew that would do it for me... but it looks like that might > involve some sort of implicit manifest thingy, so I don't know. > > Chas. > > Viktor Klang wrote: > > > > > > On Mon, Dec 1, 2008 at 7:12 AM, Charles F. Munat <[EMAIL PROTECTED] > <mailto:[EMAIL PROTECTED]> > > <mailto:[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>>> wrote: > > > > > > Is there a simple way in JPA/Lift to query to retrieve a > single object > > from the database, assign it to a val if found, or create a > new object > > of that type and assign it instead of there is no such object > in the > > database? > > > > Sort of a... > > > > val user: User = > > Model.createNamedQuery( > > "findUserByUsername", > > "username" -> "hal" > > ).findOr(new User()) > > > > > > (Can ! (yourQuery.uniqueResult)).openOr(new User()) > > > > Should work? > > > > > > > > or something like that? That would be very useful. > > > > Thanks, > > Chas. > > > > > > > > > > > > -- > > Viktor Klang > > Senior Systems Analyst > > > > > > > > > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Lift" group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~----------~----~----~----~------~----~------~--~---
