On Mon, Nov 30, 2009 at 6:25 PM, Trevor Austin <traus...@gmail.com> wrote:
> Never mind, it just needed a type hint:
>
Sometimes the type inferencer gets it right and sometimes it needs some
extra help.
>
> val users:List[User] = User.findAll(In(User.id, Tag.user, By
> (Tag.tagType, this), OrderBy(Tag.created_at, Descending), MaxRows[Tag]
> (100)))
>
> On Nov 30, 9:17 pm, Trevor Austin <traus...@gmail.com> wrote:
> > I have some slow code:
> >
> > val users:List[User] = Tag.findAll(By(Tag.tagType,this), OrderBy
> > (Tag.created_at, Descending), MaxRows(100), PreCache(Tag.user)).map
> > (_.user.obj.open_!)
> >
> > That I turned into faster ugly code:
> >
> > val users:List[User] = User.findAll(BySql("WHERE id IN (SELECT TOP 100
> > user from Tag where tagType = ? ORDER BY created_at DESC )",
> > IHaveValidatedThisSQL("trevoraustin","2009-11-30"), this.id))
> >
> > That I want to turn into faster nicer code:
> >
> > val users:List[User] = User.findAll(In(User.id, Tag.user, By
> > (Tag.tagType, this), OrderBy(Tag.created_at, Descending), MaxRows
> > (100)))
> >
> > But I get the error:
> >
> > "no implicit argument matching parameter type (Product with
> > net.liftweb.mapper.QueryParam[_ <: com.udorse.lift.model.Tag]) =>
> > net.liftweb.mapper.QueryParam[com.udorse.lift.model.Tag] was found."
> >
> > If I try just:
> >
> > val users:List[User] = User.findAll(In(User.id, Tag.user, By
> > (Tag.tagType, this), OrderBy(Tag.created_at, Descending)))
> >
> > Without the MaxRows it compiles fine. Is there a limit on the
> > QueryParams I can use with In? Am I doing something else wrong?
>
> --
>
> You received this message because you are subscribed to the Google Groups
> "Lift" group.
> To post to this group, send email to lift...@googlegroups.com.
> To unsubscribe from this group, send email to
> liftweb+unsubscr...@googlegroups.com<liftweb%2bunsubscr...@googlegroups.com>
> .
> For more options, visit this group at
> http://groups.google.com/group/liftweb?hl=en.
>
>
>
--
Lift, the simply functional web framework http://liftweb.net
Beginning Scala http://www.apress.com/book/view/1430219890
Follow me: http://twitter.com/dpp
Surf the harmonics
--
You received this message because you are subscribed to the Google Groups
"Lift" group.
To post to this group, send email to lift...@googlegroups.com.
To unsubscribe from this group, send email to
liftweb+unsubscr...@googlegroups.com.
For more options, visit this group at
http://groups.google.com/group/liftweb?hl=en.
