def getParentCategory(object, portal, **kwargs):
try:
if ICategory.providedBy(object):
parent_category = object.getParentCategory()
if parent_category is not None:
return parent_category.UID()
else:
return None
except (ComponentLookupError, TypeError, ValueError):
raise AttributeError
def amount_of_categories(object, portal, **kwargs):
try:
# This has to be done without the help of the catalog. Otherwise it
# counts before all to counted objects are in the catalog. That is at
# least the case for Advanced/Update Catalog.
counter = 0
if ICategory.providedBy(object):
counter = len(object.objectValues("Category"))
return counter
except (ComponentLookupError, TypeError, ValueError):
raise AttributeError