def get_anonymous_id():
""" Retrieves anonymous user object """
# try to get anonymous user
key = db.Key(Uzver, 'anonymous')
user = db.get(key)
# or create it if it does not exist
if None == user:
user = Uzver(nick_name='anonymous',
first_name='unknown',
last_name='unknown',
email='*****@*****.**',
password='******')
user.put()
return user.key().id_or_name()
def __init__(self, user_data, is_new=True, user_id=None):
""" Creates new user or loads an existing user data from datastore """
if (None == user_id) and (None == user_data or None == user_data['nick_name']):
raise(BadUserData, 'user nickname or id is required')
if None != user_id:
# existing user requested, try to get it
user = db.get(user_id)
if None == user:
raise(BadUserData, 'user with the specified nickname does not exist')
elif is_new:
# create new user but check for duplicates first
if not self._is_unique(user_data):
raise(BadUserRequest, 'user with such nickname or email exists')
user = Uzver(user_data)
user.put()
else:
# try to get and update an existing user or raise exception if it's not exist
key = db.Key(Uzver, user_data['nick_name'])
user = db.get(key)
if None == user:
raise(BadUserRequest, 'user with the specified nickname does not exist')
# anonymous user is read-only
if 'anonymous' == user['nick_name'].to_lower():
raise(BadUserRequest, 'specified user is read-only')
# update user data
self._user_ = user
self.set_user_info(user_data)
self._user_ = user