File: caches.py

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from __future__ import unicode_literals

from django.conf import settings
from django.core.cache import DEFAULT_CACHE_ALIAS

from . import Error, Tags, register

E001 = Error(
    "You must define a '%s' cache in your CACHES setting." % DEFAULT_CACHE_ALIAS,
    id='caches.E001',
)


@register(Tags.caches)
def check_default_cache_is_configured(app_configs, **kwargs):
    if DEFAULT_CACHE_ALIAS not in settings.CACHES:
        return [E001]
    return []