postgresql7.1
select t.object_type as group_type, t.pretty_plural,
coalesce(num.number_groups,0) as number_groups,
repeat(' ', t.type_level * 4) as indent
from (select t2.object_type, t2.pretty_plural, t2.tree_sortkey,
tree_level(t2.tree_sortkey) - tree_level(t1.tree_sortkey) as type_level
from acs_object_types t1,
acs_object_types t2
where t1.object_type = 'group'
and t2.tree_sortkey between t1.tree_sortkey and tree_right(t1.tree_sortkey)) t
left outer join
(select object_type, count(group_id) as number_groups from
(select distinct o.object_type, g.group_id
from groups g, acs_objects o,
application_group_element_map app_group
where acs_permission__permission_p(g.group_id, :user_id, 'read')
and o.object_id = g.group_id
and ((app_group.package_id = :package_id and app_group.element_id = g.group_id)
-- the or-clause below is just needed for "Registered Users" (-2)
-- which is an application group for e.g. a subsite,
-- but not mapped to it via application_group_element_map
or (o.object_id = -2)
)) counts
group by object_type) num
using (object_type)
order by t.tree_sortkey