django admin添加用户组时报错
如图所示,点击创建后报错
很奇怪啊,我没有改任何初始代码
这是database_router的代码
from django.conf import settings
class DatabaseRouter(object):
def db_for_read(self, model, **hints):
app_label = model._meta.app_label
if app_label in settings.DATABASES_APPS_MAPPING:
res = settings.DATABASES_APPS_MAPPING[app_label]
return res
return None
def db_for_write(self, model, **hints):
app_label = model._meta.app_label
if app_label in settings.DATABASES_APPS_MAPPING:
return settings.DATABASES_APPS_MAPPING[app_label]
return None
def allow_relation(self, obj1, obj2, **hints):
# 获取对应数据库的名字
db_obj1 = settings.DATABASES_APPS_MAPPING.get(obj1._mata.app_label)
db_obj2 = settings.DATABASES_APPS_MAPPING.get(obj2._mata.app_label)
if db_obj1 and db_obj2:
if db_obj1 == db_obj2:
return True
else:
return False
return None
def db_for_migrate(self, db, app_label, model_name=None, **hints):
if db in settings.DATABASES_APPS_MAPPING.values():
return settings.DATABASES_APPS_MAPPING.get(app_label) == db
elif app_label in settings.DATABASES_APPS_MAPPING:
return False
return None