+
−r"""
+
−
+
−>>> from django.conf import settings
+
−>>> from django.contrib.sessions.backends.db import SessionStore as DatabaseSession
+
−>>> from django.contrib.sessions.backends.cache import SessionStore as CacheSession
+
−>>> from django.contrib.sessions.backends.file import SessionStore as FileSession
+
−>>> from django.contrib.sessions.backends.base import SessionBase
+
−
+
−>>> db_session = DatabaseSession()
+
−>>> db_session.modified
+
−False
+
−>>> db_session['cat'] = "dog"
+
−>>> db_session.modified
+
−True
+
−>>> db_session.pop('cat')
+
−'dog'
+
−>>> db_session.pop('some key', 'does not exist')
+
−'does not exist'
+
−>>> db_session.save()
+
−>>> db_session.exists(db_session.session_key)
+
−True
+
−>>> db_session.delete(db_session.session_key)
+
−>>> db_session.exists(db_session.session_key)
+
−False
+
−
+
−>>> file_session = FileSession()
+
−>>> file_session.modified
+
−False
+
−>>> file_session['cat'] = "dog"
+
−>>> file_session.modified
+
−True
+
−>>> file_session.pop('cat')
+
−'dog'
+
−>>> file_session.pop('some key', 'does not exist')
+
−'does not exist'
+
−>>> file_session.save()
+
−>>> file_session.exists(file_session.session_key)
+
−True
+
−>>> file_session.delete(file_session.session_key)
+
−>>> file_session.exists(file_session.session_key)
+
−False
+
−
+
−# Make sure the file backend checks for a good storage dir
+
−>>> settings.SESSION_FILE_PATH = "/if/this/directory/exists/you/have/a/weird/computer"
+
−>>> FileSession()
+
−Traceback (innermost last):
+
−    ...
+
−ImproperlyConfigured: The session storage path '/if/this/directory/exists/you/have/a/weird/computer' doesn't exist. Please set your SESSION_FILE_PATH setting to an existing directory in which Django can store session data.
+
−
+
−>>> cache_session = CacheSession()
+
−>>> cache_session.modified
+
−False
+
−>>> cache_session['cat'] = "dog"
+
−>>> cache_session.modified
+
−True
+
−>>> cache_session.pop('cat')
+
−'dog'
+
−>>> cache_session.pop('some key', 'does not exist')
+
−'does not exist'
+
−>>> cache_session.save()
+
−>>> cache_session.delete(cache_session.session_key)
+
−>>> cache_session.exists(cache_session.session_key)
+
−False
+
−
+
−>>> s = SessionBase()
+
−>>> s._session['some key'] = 'exists' # Pre-populate the session with some data
+
−>>> s.accessed = False   # Reset to pretend this wasn't accessed previously
+
−
+
−>>> s.accessed, s.modified
+
−(False, False)
+
−
+
−>>> s.pop('non existant key', 'does not exist')
+
−'does not exist'
+
−>>> s.accessed, s.modified
+
−(True, False)
+
−
+
−>>> s.setdefault('foo', 'bar')
+
−'bar'
+
−>>> s.setdefault('foo', 'baz')
+
−'bar'
+
−
+
−>>> s.accessed = False  # Reset the accessed flag
+
−
+
−>>> s.pop('some key')
+
−'exists'
+
−>>> s.accessed, s.modified
+
−(True, True)
+
−
+
−>>> s.pop('some key', 'does not exist')
+
−'does not exist'
+
−"""
+
−
+
−if __name__ == '__main__':
+
−    import doctest
+
−    doctest.testmod()