mirror of
https://github.com/django/django.git
synced 2024-11-18 15:34:16 +00:00
15 lines
368 B
Python
15 lines
368 B
Python
from django.utils import timezone
|
|
|
|
from django.db import models
|
|
|
|
|
|
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)
|