Hi,
You should check out the Python logging package, it is super handy.
Add some logging calls to your code so you can see what is happening.
For example:
import logging
def post(self):
stguess = self.request.get('guess')
if stguess == 'new':
answer = Answer(ans = (random.randint(1, 100))).put()
logging.info('Wrote answer, key is: %s', str(answer.key()))
number = Answer.all().get()
if number is not None:
logging.info('Got answer, value is: %d', number.ans)
answer = number.ans
else:
logging.info('Oh No! Got no answer!')
answer = None
else:
logging.info('Doing nothing.')
Robert
On Wed, Aug 17, 2011 at 17:33, Matt <[email protected]> wrote:
> I am trying to pull an integer from the datastore but I keep getting
> None back. I store the integers here-
>
> class Answer(db.Model):
> ans = db.IntegerProperty()
>
> As a test I did this -
>
> def post(self):
>
> stguess = self.request.get('guess')
> if stguess == 'new':
> answer = Answer(ans = (random.randint(1, 100))).put()
> number = Answer.all().get()
> if number is not None:
> answer = number.ans
> else:
> answer = None
> msg = str(answer)
>
> So what that does is take user input from the user and if they entered
> 'new' follow the if path. ans equals a random integer between 1 and
> 100. Put it in Answer. Then immediately after, pull the first integer
> from Answer. If it is not None assign the variable answer to the
> result, else assign it to None. msg is displayed on screen. Instead of
> a random number which I am expecting to be displayed, None is
> displayed instead.
>
> I also tried using count to see how many items were actually in the
> database and the count was more than 0.
>
> Is there anything wrong with how I am putting or retrieving from the
> datastore? How can I change this so I get the random number into the
> answer variable, not None?
>
> Thanks for any help
>
> --
> You received this message because you are subscribed to the Google Groups
> "Google App Engine" group.
> To post to this group, send email to [email protected].
> To unsubscribe from this group, send email to
> [email protected].
> For more options, visit this group at
> http://groups.google.com/group/google-appengine?hl=en.
>
>
--
You received this message because you are subscribed to the Google Groups
"Google App Engine" group.
To post to this group, send email to [email protected].
To unsubscribe from this group, send email to
[email protected].
For more options, visit this group at
http://groups.google.com/group/google-appengine?hl=en.
