1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
|
"""
7. The lookup API
This demonstrates features of the database API.
"""
from django.db import models
class Author(models.Model):
name = models.CharField(max_length=100)
class Meta:
ordering = ('name', )
class Article(models.Model):
headline = models.CharField(max_length=100)
pub_date = models.DateTimeField()
author = models.ForeignKey(Author, blank=True, null=True)
class Meta:
ordering = ('-pub_date', 'headline')
def __unicode__(self):
return self.headline
class Tag(models.Model):
articles = models.ManyToManyField(Article)
name = models.CharField(max_length=100)
class Meta:
ordering = ('name', )
class Season(models.Model):
year = models.PositiveSmallIntegerField()
gt = models.IntegerField(null=True, blank=True)
def __unicode__(self):
return unicode(self.year)
class Game(models.Model):
season = models.ForeignKey(Season, related_name='games')
home = models.CharField(max_length=100)
away = models.CharField(max_length=100)
def __unicode__(self):
return u"%s at %s" % (self.away, self.home)
class Player(models.Model):
name = models.CharField(max_length=100)
games = models.ManyToManyField(Game, related_name='players')
def __unicode__(self):
return self.name
|
