Defined in tcl/ad-categories.tclReturns a list of lists, where each sublist is one line of parentage up
from the specified category to the hierarchy root. In turn, each parentage
line list consists of two-item lists: category_id and category. A list
of lists is needed since a category can have multiple parents. If this
category has no parents, then return the empty list.
- Parameters:
-
category_id