Question

i have the following model in google app engine:

class CustomUsers(db.Model):
    cuid = db.StringProperty()
    name = db.StringProperty()
    email = db.StringProperty()
    bday = db.StringProperty()

now given a cuid i just want to check if he is present in the high replication data store.
in my views i write the following, but eventually get an 500 error:

usr_prev = CustomUsers.all().filter('cuid =', request.POST['id'])
if(not usr_prev):
    logging.info("this user does not exist")
else:
    logging.info("user exists") 

but this gives me an error. How shall i do it?
(Do not consider any importing issues.)

Answer 1

you can go like this to see:

query = Users.all()
cnt = query.filter('id =', user_id).count()
logging.info(cnt)
return int(cnt)

once this is done, seems you are using django with app engine, as per the error you are not returning string response. you might want to return
return HttpResponse("1") instead of return HttpResponse(1)