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# -*- coding: utf-8 -*-
# This software is distributed under the two-clause BSD license.
# Copyright (c) The django-ldapdb project
from django.apps import apps
from ldapdb.models import Model
def is_ldap_model(model):
# FIXME: there is probably a better check than testing 'base_dn'
return hasattr(model, 'base_dn')
class Router(object):
"""
A router to point database operations on LDAP models to the LDAP
database.
NOTE: if you have more than one LDAP database, you will need to
write your own router.
"""
def __init__(self):
"Find the name of the LDAP database"
from django.conf import settings
self.ldap_alias = None
for alias, settings_dict in settings.DATABASES.items():
if settings_dict['ENGINE'] == 'ldapdb.backends.ldap':
self.ldap_alias = alias
break
def allow_migrate(self, db, app_label, model_name=None, **hints):
# disallow any migration operation on ldap engine
if db == self.ldap_alias:
return False
# avoid any migration operation on ldap models
if model_name:
model = apps.get_model(app_label, model_name)
if issubclass(model, Model):
return False
return None
def db_for_read(self, model, **hints):
"Point all operations on LDAP models to the LDAP database"
if is_ldap_model(model):
return self.ldap_alias
return None
def db_for_write(self, model, **hints):
"Point all operations on LDAP models to the LDAP database"
if is_ldap_model(model):
return self.ldap_alias
return None
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