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- """
- Creates the default Site object.
- """
- from django.apps import apps
- from django.core.management.color import no_style
- from django.db import DEFAULT_DB_ALIAS, connections, router
- from django.db.models import signals
- def create_default_site(app_config, verbosity=2, interactive=True, db=DEFAULT_DB_ALIAS, **kwargs):
- try:
- Site = apps.get_model('sites', 'Site')
- except LookupError:
- return
- if not router.allow_migrate(db, Site):
- return
- if not Site.objects.exists():
- # The default settings set SITE_ID = 1, and some tests in Django's test
- # suite rely on this value. However, if database sequences are reused
- # (e.g. in the test suite after flush/syncdb), it isn't guaranteed that
- # the next id will be 1, so we coerce it. See #15573 and #16353. This
- # can also crop up outside of tests - see #15346.
- if verbosity >= 2:
- print("Creating example.com Site object")
- Site(pk=1, domain="example.com", name="example.com").save(using=db)
- # We set an explicit pk instead of relying on auto-incrementation,
- # so we need to reset the database sequence. See #17415.
- sequence_sql = connections[db].ops.sequence_reset_sql(no_style(), [Site])
- if sequence_sql:
- if verbosity >= 2:
- print("Resetting sequence")
- with connections[db].cursor() as cursor:
- for command in sequence_sql:
- cursor.execute(command)
- Site.objects.clear_cache()
- signals.post_migrate.connect(create_default_site, sender=apps.get_app_config('sites'))
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