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89 lines
3.9 KiB
Python
89 lines
3.9 KiB
Python
from __future__ import absolute_import
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from collections import defaultdict
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from django.db import transaction
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from django.utils.translation import ugettext as _
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from zerver.lib.exceptions import JsonableError
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from zerver.models import UserProfile, Realm, UserGroupMembership, UserGroup
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from typing import Dict, Iterable, List, Tuple, Any
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def access_user_group_by_id(user_group_id: int, user_profile: UserProfile) -> UserGroup:
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try:
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user_group = UserGroup.objects.get(id=user_group_id, realm=user_profile.realm)
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group_member_ids = get_user_group_members(user_group)
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msg = _("Only group members and organization administrators can administer this group.")
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if (not user_profile.is_realm_admin and user_profile.id not in group_member_ids):
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raise JsonableError(msg)
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except UserGroup.DoesNotExist:
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raise JsonableError(_("Invalid user group"))
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return user_group
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def user_groups_in_realm(realm: Realm) -> List[UserGroup]:
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user_groups = UserGroup.objects.filter(realm=realm)
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return list(user_groups)
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def user_groups_in_realm_serialized(realm: Realm) -> List[Dict[str, Any]]:
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"""This function is used in do_events_register code path so this code
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should be performant. We need to do 2 database queries because
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Django's ORM doesn't properly support the left join between
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UserGroup and UserGroupMembership that we need.
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"""
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realm_groups = UserGroup.objects.filter(realm=realm)
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group_dicts = {} # type: Dict[str, Any]
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for user_group in realm_groups:
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group_dicts[user_group.id] = dict(
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id=user_group.id,
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name=user_group.name,
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description=user_group.description,
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members=[],
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)
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membership = UserGroupMembership.objects.filter(user_group__realm=realm).values_list(
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'user_group_id', 'user_profile_id')
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for (user_group_id, user_profile_id) in membership:
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group_dicts[user_group_id]['members'].append(user_profile_id)
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for group_dict in group_dicts.values():
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group_dict['members'] = sorted(group_dict['members'])
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return sorted(group_dicts.values(), key=lambda group_dict: group_dict['id'])
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def get_user_groups(user_profile: UserProfile) -> List[UserGroup]:
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return list(user_profile.usergroup_set.all())
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def check_add_user_to_user_group(user_profile: UserProfile, user_group: UserGroup) -> bool:
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member_obj, created = UserGroupMembership.objects.get_or_create(
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user_group=user_group, user_profile=user_profile)
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return created
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def remove_user_from_user_group(user_profile: UserProfile, user_group: UserGroup) -> int:
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num_deleted, _ = UserGroupMembership.objects.filter(
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user_profile=user_profile, user_group=user_group).delete()
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return num_deleted
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def check_remove_user_from_user_group(user_profile: UserProfile, user_group: UserGroup) -> bool:
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try:
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num_deleted = remove_user_from_user_group(user_profile, user_group)
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return bool(num_deleted)
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except Exception:
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return False
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def create_user_group(name: str, members: List[UserProfile], realm: Realm,
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description: str='') -> UserGroup:
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with transaction.atomic():
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user_group = UserGroup.objects.create(name=name, realm=realm,
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description=description)
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UserGroupMembership.objects.bulk_create([
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UserGroupMembership(user_profile=member, user_group=user_group)
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for member in members
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])
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return user_group
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def get_user_group_members(user_group: UserGroup) -> List[UserProfile]:
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members = UserGroupMembership.objects.filter(user_group=user_group)
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return [member.user_profile.id for member in members]
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def get_memberships_of_users(user_group: UserGroup, members: List[UserProfile]) -> List[int]:
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return list(UserGroupMembership.objects.filter(
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user_group=user_group,
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user_profile__in=members).values_list('user_profile_id', flat=True))
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