scalatra squeryl select where parameter type missing

scalatra squeryl select where parameter type missing

I am a Scalatra beginner and I have the following route:
get("/todos") {
contentType = formats("json")
val userid : Int = params.getOrElse("userid", halt(400)).toInt
val limit : Int = params.getOrElse("limit", "0").toInt
val offset : Int = params.getOrElse("offset", "0").toInt
if(limit != 0 && offset != 0)
from(TodoDb.todos)(todo => where(todo => todo.userid == userid)
select(todo)).toList
else {
from(TodoDb.todos)(todo => where(todo => todo.userid == userid)
select(todo) orderBy(todo.modified)).page(offset, limit).toList
}
}
I can't compile it, I got the following error messages:
[info] Compiling 1 Scala source to
/home/coelho/www/p.zomg.hu/gfmwa-todo-app/target/scala-2.10/classes...
[error]
/home/coelho/www/app/src/main/scala/hu/gfmwa/todoapp/TodoScalatraServlet.scala:25:
missing parameter type
[error] from(TodoDb.todos)(todo => where(todo => todo.userid ==
userid) select(todo)).toList
[error] ^
[error]
/home/coelho/www/app/src/main/scala/hu/gfmwa/todoapp/TodoScalatraServlet.scala:27:
missing parameter type
[error] from(TodoDb.todos)(todo => where(todo => todo.userid ==
userid) select(todo) orderBy(todo.modified)).page(offset, limit).toList
[error] ^
[error] two errors found
[error] (compile:compile) Compilation failed
I learn from here: http://squeryl.org/selects.html and here:
http://squeryl.org/pagination.html
I can't see parameter type information on these pages, I can't figure out,
what can be the problem. What I am doing wrong?