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user_groups: Add get_recursive_supergroups_union_for_groups.

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This function will be useful in finding out affected groups when
sending events for users gaining or losing metadata access when the
members of a user group change in any way.

(cherry picked from commit 139679cdb1)
This commit is contained in:
Shubham Padia
2025-03-20 09:01:53 +00:00
committed by Tim Abbott
parent 5d947cb501
commit 1e896d9878
2 changed files with 38 additions and 0 deletions
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9
zerver/lib/user_groups.py
View File

@@ -790,6 +790,15 @@ def get_recursive_subgroups_union_for_groups(user_group_ids: list[int]) -> Query
return cte.join(UserGroup, id=cte.col.group_id).with_cte(cte)
def get_recursive_supergroups_union_for_groups(user_group_ids: list[int]) -> QuerySet[UserGroup]:
cte = With.recursive(
lambda cte: UserGroup.objects.filter(id__in=user_group_ids)
.values(group_id=F("id"))
.union(cte.join(UserGroup, direct_subgroups=cte.col.group_id).values(group_id=F("id")))
)
return cte.join(UserGroup, id=cte.col.group_id).with_cte(cte)
def get_recursive_subgroups(user_group_id: int) -> QuerySet[UserGroup]:
return get_recursive_subgroups_union_for_groups([user_group_id])

29
zerver/tests/test_user_groups.py
View File

@@ -46,6 +46,7 @@ from zerver.lib.user_groups import (
get_recursive_strict_subgroups,
get_recursive_subgroups,
get_recursive_subgroups_union_for_groups,
get_recursive_supergroups_union_for_groups,
get_role_based_system_groups_dict,
get_subgroup_ids,
get_system_user_group_by_name,
@@ -308,6 +309,16 @@ class UserGroupTestCase(ZulipTestCase):
GroupGroupMembership.objects.create(supergroup=everyone_group, subgroup=staff_group)
GroupGroupMembership.objects.create(supergroup=everyone_group, subgroup=manager_group)
subgroup_for_anonymous_supergroup = check_add_user_group(
realm, "subgroup_for_anonymous_supergroup", [iago], acting_user=iago
)
anonymous_supergroup = check_add_user_group(
realm, "anonymous_supergroup", [iago], acting_user=iago
)
GroupGroupMembership.objects.create(
supergroup=anonymous_supergroup, subgroup=subgroup_for_anonymous_supergroup
)
self.assertCountEqual(
list(get_recursive_subgroups(leadership_group.id)), [leadership_group.usergroup_ptr]
)
@@ -334,6 +345,24 @@ class UserGroupTestCase(ZulipTestCase):
],
)
with self.assert_database_query_count(1):
recursive_supergroups_union_for_groups = list(
get_recursive_supergroups_union_for_groups(
[leadership_group.id, subgroup_for_anonymous_supergroup.id]
)
)
self.assertCountEqual(
recursive_supergroups_union_for_groups,
[
leadership_group.usergroup_ptr,
everyone_group.usergroup_ptr,
staff_group.usergroup_ptr,
manager_group.usergroup_ptr,
subgroup_for_anonymous_supergroup.usergroup_ptr,
anonymous_supergroup.usergroup_ptr,
],
)
self.assertCountEqual(list(get_recursive_strict_subgroups(leadership_group)), [])
self.assertCountEqual(list(get_recursive_strict_subgroups(staff_group)), [leadership_group])
self.assertCountEqual(