68 lines
2.0 KiB
Python
68 lines
2.0 KiB
Python
from django.apps import AppConfig
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from django.conf import settings
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from django.core.checks import register, Tags, Error
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from .monkey_patch import patch
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from .settings import cachalot_settings
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VALID_DATABASE_ENGINES = {
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'django.db.backends.sqlite3',
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'django.db.backends.postgresql',
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'django.db.backends.mysql',
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# TODO: Remove when we drop Django 1.8 support.
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'django.db.backends.postgresql_psycopg2',
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# GeoDjango
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'django.contrib.gis.db.backends.spatialite',
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'django.contrib.gis.db.backends.postgis',
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'django.contrib.gis.db.backends.mysql',
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# django-transaction-hooks
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'transaction_hooks.backends.sqlite3',
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'transaction_hooks.backends.postgis',
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'transaction_hooks.backends.postgresql_psycopg2',
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'transaction_hooks.backends.mysql',
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}
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VALID_CACHE_BACKENDS = {
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'django.core.cache.backends.dummy.DummyCache',
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'django.core.cache.backends.locmem.LocMemCache',
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'django.core.cache.backends.filebased.FileBasedCache',
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'django_redis.cache.RedisCache',
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'django.core.cache.backends.memcached.MemcachedCache',
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'django.core.cache.backends.memcached.PyLibMCCache',
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}
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@register(Tags.compatibility)
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def check_compatibility(app_configs, **kwargs):
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cache_alias = cachalot_settings.CACHALOT_CACHE
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caches = {cache_alias: settings.CACHES[cache_alias]}
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errors = []
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for setting, k, valid_values in (
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(settings.DATABASES, 'ENGINE', VALID_DATABASE_ENGINES),
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(caches, 'BACKEND', VALID_CACHE_BACKENDS)):
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for config in setting.values():
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value = config[k]
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if value not in valid_values:
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errors.append(
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Error(
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'`%s` is not compatible with django-cachalot.' % value,
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id='cachalot.E001',
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)
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)
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return errors
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class CachalotConfig(AppConfig):
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name = 'cachalot'
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patched = False
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def ready(self):
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if not self.patched:
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patch()
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self.patched = True
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