Commit 766e03ae authored by Cédric Le Ninivin's avatar Cédric Le Ninivin

composition mixin: Add getInheritedCategoryValueList

parent 26ab64f0
......@@ -256,6 +256,29 @@ class CompositionMixin:
specialise_type_list, portal_type_set)
return specialise_list
security.declareProtected(Permissions.AccessContentsInformation,
'getInheritedCategoryValueList')
def getInheritedCategoryValueList(self, category, category_type_list=None,
exclude_category_type_list=()):
"""Get inherited category values
Values are inherited from parent only if portal types differ,
so that a child can override.
"""
portal_type_set = set()
category_list = []
for value in self._getValueList(category):
portal_type = value.getPortalType()
if not (portal_type in exclude_category_type_list or
category_type_list and portal_type not in category_type_list):
portal_type_set.add(portal_type)
category_list.append(value)
parent = self.getParentValue()
if isinstance(parent, CompositionMixin):
portal_type_set.update(exclude_category_type_list)
category_list += parent.getInheritedCategoryValueList(
category, category_type_list, portal_type_set)
return category_list
del asComposedDocument # to be unhidden (and renamed ?) if needed
InitializeClass(CompositionMixin)
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