def get_backend(self):
""" Return Backend object. This object is used by Django Auth
mechanism
:return: MongoEngineBackend object if we got internal MongoDB repository,
MongoDBBackend object otherwise
"""
if self.is_internal:
from mongoengine.django.auth import MongoEngineBackend
return MongoEngineBackend()
else:
from gui.mongodb_backend import MongoDBBackend
return MongoDBBackend(self)
