File: testserver.py

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from django.core.management import call_command
from django.core.management.base import BaseCommand
from django.db import connection


class Command(BaseCommand):
    help = 'Runs a development server with data from the given fixture(s).'

    requires_system_checks = False

    def add_arguments(self, parser):
        parser.add_argument(
            'args', metavar='fixture', nargs='*',
            help='Path(s) to fixtures to load before running the server.',
        )
        parser.add_argument(
            '--noinput', '--no-input', action='store_false', dest='interactive', default=True,
            help='Tells Django to NOT prompt the user for input of any kind.',
        )
        parser.add_argument(
            '--addrport', default='',
            help='Port number or ipaddr:port to run the server on.',
        )
        parser.add_argument(
            '--ipv6', '-6', action='store_true', dest='use_ipv6', default=False,
            help='Tells Django to use an IPv6 address.',
        )

    def handle(self, *fixture_labels, **options):
        verbosity = options['verbosity']
        interactive = options['interactive']

        # Create a test database.
        db_name = connection.creation.create_test_db(verbosity=verbosity, autoclobber=not interactive, serialize=False)

        # Import the fixture data into the test database.
        call_command('loaddata', *fixture_labels, **{'verbosity': verbosity})

        # Run the development server. Turn off auto-reloading because it causes
        # a strange error -- it causes this handle() method to be called
        # multiple times.
        shutdown_message = (
            '\nServer stopped.\nNote that the test database, %r, has not been '
            'deleted. You can explore it on your own.' % db_name
        )
        use_threading = connection.features.test_db_allows_multiple_connections
        call_command(
            'runserver',
            addrport=options['addrport'],
            shutdown_message=shutdown_message,
            use_reloader=False,
            use_ipv6=options['use_ipv6'],
            use_threading=use_threading
        )