typechecker forbids action nested in page; how are we supposed to make proper user interfaces!?

define newLectureLink(course : Course) {
placeholder addLecture {
form{ actionLink(“[Add Lecture]”, showForm())[ajax] }
action showForm() { replace(addLecture, newLecture(course)); }
}
}

• course/lecture-ui.app:41/28: error: This element is not allowed to be nested in other template elements:
  action showForm ( )
  {
  replace
  (
  addLecture
  ,
  newLecture(course)
  )
  ;
  }

Submitted by Eelco Visser on 11 March 2010 at 15:46

Afaik nesting actions in pages is allowed. Just only at the top level:

define newLectureLink(course : Course) {
   placeholder addLecture { 
      form{ actionLink("[Add Lecture]", showForm())[ajax] } 
   }
   action showForm() { replace(addLecture, newLecture(course)); } 
}