python/lib/django_1_4/django/contrib/sites/management.py

   1 """
   2 Creates the default Site object.
   3 """
   4
   5 from django.db.models import signals
   6 from django.db import connections
   7 from django.db import router
   8 from django.contrib.sites.models import Site
   9 from django.contrib.sites import models as site_app
  10 from django.core.management.color import no_style
  11
  12 def create_default_site(app, created_models, verbosity, db, **kwargs):
  13     # Only create the default sites in databases where Django created the table
  14     if Site in created_models and router.allow_syncdb(db, Site) :
  15         # The default settings set SITE_ID = 1, and some tests in Django's test
  16         # suite rely on this value. However, if database sequences are reused
  17         # (e.g. in the test suite after flush/syncdb), it isn't guaranteed that
  18         # the next id will be 1, so we coerce it. See #15573 and #16353. This
  19         # can also crop up outside of tests - see #15346.
  20         if verbosity >= 2:
  21             print "Creating example.com Site object"
  22         Site(pk=1, domain="example.com", name="example.com").save(using=db)
  23
  24         # We set an explicit pk instead of relying on auto-incrementation,
  25         # so we need to reset the database sequence. See #17415.
  26         sequence_sql = connections[db].ops.sequence_reset_sql(no_style(), [Site])
  27         if sequence_sql:
  28             if verbosity >= 2:
  29                 print "Resetting sequence"
  30             cursor = connections[db].cursor()
  31             for command in sequence_sql:
  32                 cursor.execute(command)
  33
  34     Site.objects.clear_cache()
  35
  36 signals.post_syncdb.connect(create_default_site, sender=site_app)