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
|
# coding: utf-8
from django.db import models
class School(models.Model):
name = models.CharField(max_length=100)
class Parent(models.Model):
name = models.CharField(max_length=100)
class Child(models.Model):
mother = models.ForeignKey(Parent, related_name='mothers_children')
father = models.ForeignKey(Parent, related_name='fathers_children')
school = models.ForeignKey(School)
name = models.CharField(max_length=100)
class Poet(models.Model):
name = models.CharField(max_length=100)
def __unicode__(self):
return self.name
class Poem(models.Model):
poet = models.ForeignKey(Poet)
name = models.CharField(max_length=100)
def __unicode__(self):
return self.name
|
