models.py 367 Bytes
Newer Older
1
from django.db import models
2
from django.utils import timezone
3 4


5 6
def expensive_calculation():
    expensive_calculation.num_runs += 1
7
    return timezone.now()
8

Jason Myers's avatar
Jason Myers committed
9

10 11 12 13
class Poll(models.Model):
    question = models.CharField(max_length=200)
    answer = models.CharField(max_length=200)
    pub_date = models.DateTimeField('date published', default=expensive_calculation)