Source code for tcms.bugs.management
# pylint: disable=too-many-locals, invalid-name, avoid-list-comprehension, bulk-create-used
# Copyright (c) 2020 Alexander Todorov <atodorov@MrSenko.com>
# Licensed under the GPL 2.0: https://www.gnu.org/licenses/old-licenses/gpl-2.0.html
from django.apps import apps as global_apps
from django.contrib.auth import get_permission_codename
from django.contrib.contenttypes.management import create_contenttypes
from django.db import DEFAULT_DB_ALIAS, router
def _get_all_permissions(opts):
"""
Return (codename, name) for all permissions in the given opts.
"""
return [*_get_builtin_permissions(opts), *opts.permissions]
def _get_builtin_permissions(opts):
"""
Return (codename, name) for all autogenerated permissions.
By default, this is ('add', 'change', 'delete', 'view')
"""
perms = []
for action in opts.default_permissions:
perms.append(
(
get_permission_codename(action, opts),
f"Can {action} {opts.verbose_name_raw}",
)
)
return perms
[docs]
def create_permissions(
app_config,
verbosity=2,
interactive=True,
using=DEFAULT_DB_ALIAS,
apps=global_apps,
**kwargs,
):
"""
Create the missing permissions for the Bug<->Tag m2m model, see
https://code.djangoproject.com/ticket/31633
Copied from django.contrib.auth.management.create_permissions()
"""
if app_config.name != "tcms.bugs":
return
if not app_config.models_module:
return
# Ensure that contenttypes are created for this app. Needed if
# 'django.contrib.auth' is in INSTALLED_APPS before
# 'django.contrib.contenttypes'.
create_contenttypes(
app_config,
verbosity=verbosity,
interactive=interactive,
using=using,
apps=apps,
**kwargs,
)
app_label = app_config.label
try:
app_config = apps.get_app_config(app_label)
ContentType = apps.get_model("contenttypes", "ContentType")
Permission = apps.get_model("auth", "Permission")
except LookupError:
return
if not router.allow_migrate_model(using, Permission):
return
# This will hold the permissions we're looking for as
# (content_type, (codename, name))
searched_perms = []
# The codenames and ctypes that should exist.
ctypes = set()
for klass in app_config.get_models(include_auto_created=True):
# Force looking up the content types in the current database
# before creating foreign keys to them.
ctype = ContentType.objects.db_manager(using).get_for_model(
klass, for_concrete_model=False
)
ctypes.add(ctype)
for perm in _get_all_permissions(klass._meta):
searched_perms.append((ctype, perm))
# Find all the Permissions that have a content_type for a model we're
# looking for. We don't need to check for codenames since we already have
# a list of the ones we're going to create.
all_perms = set(
Permission.objects.using(using)
.filter(
content_type__in=ctypes,
)
.values_list("content_type", "codename")
)
perms = [
Permission(codename=codename, name=name, content_type=ct)
for ct, (codename, name) in searched_perms
if (ct.pk, codename) not in all_perms
]
Permission.objects.using(using).bulk_create(perms)
if verbosity >= 2:
for perm in perms:
print(f"Adding permission '{perm}'")