Never mind, it just needed a type hint:
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?
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