1 """

     2 Creates permissions for all installed apps that need permissions.

     3 """

     4 

     5 from django.db.models import get_models, signals

     6 from django.contrib.auth import models as auth_app

     7 

     8 def _get_permission_codename(action, opts):

     9     return u'%s_%s' % (action, opts.object_name.lower())

    10 

    11 def _get_all_permissions(opts):

    12     "Returns (codename, name) for all permissions in the given opts."

    13     perms = []

    14     for action in ('add', 'change', 'delete'):

    15         perms.append((_get_permission_codename(action, opts), u'Can %s %s' % (action, opts.verbose_name_raw)))

    16     return perms + list(opts.permissions)

    17 

    18 def create_permissions(app, created_models, verbosity, **kwargs):

    19     from django.contrib.contenttypes.models import ContentType

    20     from django.contrib.auth.models import Permission

    21     app_models = get_models(app)

    22     if not app_models:

    23         return

    24     for klass in app_models:

    25         ctype = ContentType.objects.get_for_model(klass)

    26         for codename, name in _get_all_permissions(klass._meta):

    27             p, created = Permission.objects.get_or_create(codename=codename, content_type__pk=ctype.id,

    28                 defaults={'name': name, 'content_type': ctype})

    29             if created and verbosity >= 2:

    30                 print "Adding permission '%s'" % p

    31 

    32 def create_superuser(app, created_models, verbosity, **kwargs):

    33     from django.contrib.auth.models import User

    34     from django.core.management import call_command

    35     if User in created_models and kwargs.get('interactive', True):

    36         msg = "\nYou just installed Django's auth system, which means you don't have " \

    37                 "any superusers defined.\nWould you like to create one now? (yes/no): "

    38         confirm = raw_input(msg)

    39         while 1:

    40             if confirm not in ('yes', 'no'):

    41                 confirm = raw_input('Please enter either "yes" or "no": ')

    42                 continue

    43             if confirm == 'yes':

    44                 call_command("createsuperuser", interactive=True)

    45             break

    46 

    47 signals.post_syncdb.connect(create_permissions,

    48     dispatch_uid = "django.contrib.auth.management.create_permissions")

    49 signals.post_syncdb.connect(create_superuser,

    50     sender=auth_app, dispatch_uid = "django.contrib.auth.management.create_superuser")