I am using a JSON plugin to Views to output taxonomy terms as a JSON object for Javascript manipulation. I was to be able to include the parent ID in this output.
In view I see "Taxonomy term: Parent term" under relationships and I have added that to the view. But under "Fields" -> "Add" there is still no "Parent term" listed in the available fields. I'm pretty sure the "pid" should be available. Is there some other way of accessing that field via the Views UI?