I'm assuming that your someThing has a MappedForeignKey trait called user, right? In that case, you could do this:
somThing.user.map(u => u.firstName.is) openOr "no name" The Box class has a map function on it that can be used to easily extract data from a Full Box, but just passes an Empty Box along. Derek On Fri, Mar 27, 2009 at 8:27 PM, Alex <[email protected]> wrote: > > > If you have this invalid code: > > someThing.user.obj.openOr(...).firstName.is > > Maybe there is a way to do this right to cover the possibility that > the user is Nil, but if not, how about this: > > someThing.user.obj.openOr("no name")(_.firstName.is) > > Not sure if that's exact scala syntax, but the block would not be > executed if the default value was returned. > > Is there a better way already? > > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Lift" group. To post to this group, send email to [email protected] 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 -~----------~----~----~----~------~----~------~--~---
