django python 创建app及models【Part 1】

django-admin.py startproject mysite

python manage.py runserver 0.0.0.0:8000

vi mysite/settings.py
TIME_ZONE = 'Asia/Chongqing'

DATABASES = {
'default': {
'ENGINE': 'django.db.backends.mysql',
'NAME': 'mysite',
'USER': 'xxx',
'PASSWORD': 'xx',

python manage.py startapp polls

mysql> create database mysite default charset utf8 COLLATE

utf8_general_ci;

grant all on mysite.* to name@'localhost' identified by 'psswd';

vi polls/models.py
class Poll(models.Model):
question = models.CharField(max_length=200)
pub_date = models.DateTimeField('date published')

class Choice(models.Model):
poll = models.ForeignKey(Poll)
choice_text = models.CharField(max_length=200)
votes = models.IntegerField(default=0)

python manage.py sql polls

python manage.py syncdb

python manage.py shell

>>> from polls.models import Poll, Choice
>>> Poll.objects.all()
[]
>>> from django.utils import timezone
>>> p = Poll(question="What's new?", pub_date=timezone.now())
>>> p.save()
>>> p.id

polls/models.py
自定议方法
import datetime
from django.utils import timezone
# ...
class Poll(models.Model):
# ...
def was_published_recently(self):
return self.pub_date >= timezone.now() - datetime.timedelta(days=1)