python-django-guardian 1.4.1-1 / usr / lib / python2.7 / dist-packages / guardian / checks.py

from django.core.checks import register, Tags, Warning
from django.conf import settings


# noinspection PyUnusedLocal
@register(Tags.compatibility)
def check_settings(app_configs, **kwargs):
    """ Check that settings are implemented properly
    :param app_configs: a list of apps to be checks or None for all
    :param kwargs: keyword arguments
    :return: a list of errors
    """
    checks = []
    if 'guardian.backends.ObjectPermissionBackend' not in settings.AUTHENTICATION_BACKENDS:
        msg = ("Guardian authentication backend is not hooked. You can add this in settings as eg: "
               "`AUTHENTICATION_BACKENDS = ('django.contrib.auth.backends.ModelBackend', "
               "'guardian.backends.ObjectPermissionBackend')`.")
        checks.append(Warning(msg, id='guardian.W001'))
    if not settings.ANONYMOUS_USER_ID:
        msg = ("No anonymous user ID is defined. Guardian supports anonymous user object permissions, therefore "
               "this needs to be specified in settings: `ANONYMOUS_USER_ID = -1`.")
        checks.append(Warning(msg, id='guardian.W002'))
    return checks