blob: e0aa6ab4df052bd2e4b68e65bcbb46620228efef (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
|
from django.db import models
from django.utils import timezone
def expensive_calculation():
expensive_calculation.num_runs += 1
return timezone.now()
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)
|