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'''
This command creates a moderator group and adds users to the moderator group
with permissions to add, change and delete
the objects in the exam app.
'''
# django imports
from django.core.management.base import BaseCommand, CommandError
from django.contrib.auth.models import User, Group, Permission
from django.contrib.contenttypes.models import ContentType
class Command(BaseCommand):
help = 'Adds users to the moderator group'
def add_arguments(self, parser):
# Positional arguments
parser.add_argument('usernames', nargs='*', type=str)
def handle(self, *args, **options):
app_label = 'yaksh'
try:
group = Group.objects.get(name='moderator')
except Group.DoesNotExist:
group = Group(name='moderator')
group.save()
# Get the models for the given app
content_types = ContentType.objects.filter(app_label=app_label)
# Get list of permissions for the models
permission_list = Permission.objects.filter(
content_type__in=content_types)
group.permissions.add(*permission_list)
group.save()
self.stdout.write('Moderator group added successfully')
if options['usernames']:
for uname in options['usernames']:
try:
user = User.objects.get(username=uname)
except User.DoesNotExist:
raise CommandError('User "{0}" does not exist'.format(
uname)
)
if user in group.user_set.all():
self.stdout.write('User "{0}" is '
'already a Moderator'.format(uname)
)
else:
group.user_set.add(user)
self.stdout.write('Successfully added User "{0}"'
' to Moderator group'.format(uname)
)
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