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django/tests/sessions_tests/custom_db_backend.py
Sergey Kolosov 22bb548900 Fixed #22634 -- Made the database-backed session backends more extensible.
Introduced an AbstractBaseSession model and hooks providing the option
of overriding the model class used by the session store and the session
store class used by the model.
2015-08-27 15:00:09 -04:00

44 lines
1.2 KiB
Python

"""
This custom Session model adds an extra column to store an account ID. In
real-world applications, it gives you the option of querying the database for
all active sessions for a particular account.
"""
from django.contrib.sessions.backends.db import SessionStore as DBStore
from django.contrib.sessions.base_session import AbstractBaseSession
from django.db import models
class CustomSession(AbstractBaseSession):
"""
A session model with a column for an account ID.
"""
account_id = models.IntegerField(null=True, db_index=True)
class Meta:
app_label = 'sessions'
@classmethod
def get_session_store_class(cls):
return SessionStore
class SessionStore(DBStore):
"""
A database session store, that handles updating the account ID column
inside the custom session model.
"""
@classmethod
def get_model_class(cls):
return CustomSession
def create_model_instance(self, data):
obj = super(SessionStore, self).create_model_instance(data)
try:
account_id = int(data.get('_auth_user_id'))
except (ValueError, TypeError):
account_id = None
obj.account_id = account_id
return obj