shell
<https://docs.djangoproject.com/en/2.0/ref/django-admin/#django-admin-shell>
:
>>> import datetime>>> from django.utils import timezone>>> from polls.models
>>> import Question>>> # create a Question instance with pub_date 30 days in
>>> the future>>> future_question = Question(pub_date=timezone.now() +
>>> datetime.timedelta(days=30))>>> # was it published recently?>>>
>>> future_question.was_published_recently()True
Exceptions:
PS C:\Users\AVITABAYAN\mysite> python
Python 3.6.2 (v3.6.2:5fd33b5, Jul 8 2017, 04:57:36) [MSC v.1900 64 bit
(AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import datetime
>>> from django.utils import timezone
>>> from polls.models import Question
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "C:\Users\AVITABAYAN\mysite\polls\models.py", line 7, in <module>
class Question(models.Model):
File "c:\python36\lib\site-packages\django\db\models\base.py", line 100, in
__new__
app_config = apps.get_containing_app_config(module)
File "c:\python36\lib\site-packages\django\apps\registry.py", line 244, in
get_containing_app_config
self.check_apps_ready()
File "c:\python36\lib\site-packages\django\apps\registry.py", line 127, in
check_apps_ready
raise AppRegistryNotReady("Apps aren't loaded yet.")
django.core.exceptions.AppRegistryNotReady: Apps aren't loaded yet.
models.py:
import datetime
from django.db import models
from django.utils import timezone
class Question(models.Model):
#...
def was_published_recently(self):
return self.pub_date >= timezone.now() - datetime.timedelta(days=1)
def __str__(self):
return self.question_text
question_text = models.CharField(max_length=200)
pub_date = models.DateTimeField('date published')
class Choice(models.Model):
#...
def __str__(self):
return self.choice_text
question = models.ForeignKey(Question, on_delete=models.CASCADE)
choice_text = models.CharField(max_length=200)
votes = models.IntegerField(default=0)
--
You received this message because you are subscribed to the Google Groups
"Django users" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to django-users+unsubscr...@googlegroups.com.
To post to this group, send email to django-users@googlegroups.com.
Visit this group at https://groups.google.com/group/django-users.
To view this discussion on the web visit
https://groups.google.com/d/msgid/django-users/0801b9ea-0d71-4b96-9048-5f51e584a0ad%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.
