问题
Or do I misunderstand how destroying work? Here's an example code:
class TestHandler(BaseHandler):
def get(self):
counter = self.session.get('counter')
if not counter:
counter = 0
counter += 1
if counter > 5:
self.auth.unset_session()
else:
self.session['counter'] = counter
return self.response.write ( counter )
Session works, the counter counts, but either session isn't destroyed or destroying it doesn't null the value?
Does destroying null only some values like userid and sessionid or do I completely miss the point? Thanks.
回答1:
unset_session removes the user from the session not the other session variables. The unset_session method is on the auth module.
If you dig a little deeper in the code you can have a look at what the code is doing. http://code.google.com/p/webapp-improved/source/browse/webapp2_extras/auth.py
def unset_session(self):
"""Removes a user from the session and invalidates the auth token."""
self._user = None
data = self.get_session_data(pop=True)
....
If you were trying to unset the counter, you could pop the session variable by calling self.session.pop('counter')
For example:
counter = self.session.get('counter')
if not counter:
counter = 0
counter += 1
if counter > 5:
self.session.pop('counter')
else:
self.session['counter'] = counter
return self.response.write ( counter )
If you want to clear everything from the session, you can call self.session.clear()
来源：https://stackoverflow.com/questions/12025612/gae-webapp2-destroying-session-doesnt-work