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django/tests/modeltests/field_defaults/models.py

49 lines
974 B
Python

"""
XXX. Callable defaults
???
"""
from django.db import models
from datetime import datetime
class Article(models.Model):
headline = models.CharField(maxlength=100, default='Default headline')
pub_date = models.DateTimeField(default = datetime.now)
def __repr__(self):
return self.headline
API_TESTS = """
>>> from datetime import datetime
# No articles are in the system yet.
>>> Article.objects.all()
[]
# Create an Article.
>>> a = Article(id=None)
# Grab the current datetime it should be very close to the default that just
# got saved as a.pub_date
>>> now = datetime.now()
# Save it into the database. You have to call save() explicitly.
>>> a.save()
# Now it has an ID. Note it's a long integer, as designated by the trailing "L".
>>> a.id
1L
# Access database columns via Python attributes.
>>> a.headline
'Default headline'
# make sure the two dates are sufficiently close
>>> d = now - a.pub_date
>>> d.seconds < 5
True
"""