mirror of
https://github.com/django/django.git
synced 2024-12-23 01:25:58 +00:00
39 lines
818 B
Python
39 lines
818 B
Python
"""
|
|
Testing signals before/after saving and deleting.
|
|
"""
|
|
|
|
from django.db import models
|
|
|
|
|
|
class Person(models.Model):
|
|
first_name = models.CharField(max_length=20)
|
|
last_name = models.CharField(max_length=20)
|
|
|
|
def __str__(self):
|
|
return "%s %s" % (self.first_name, self.last_name)
|
|
|
|
|
|
class Car(models.Model):
|
|
make = models.CharField(max_length=20)
|
|
model = models.CharField(max_length=20)
|
|
|
|
|
|
class Author(models.Model):
|
|
name = models.CharField(max_length=20)
|
|
|
|
def __str__(self):
|
|
return self.name
|
|
|
|
|
|
class Book(models.Model):
|
|
name = models.CharField(max_length=20)
|
|
authors = models.ManyToManyField(Author)
|
|
|
|
def __str__(self):
|
|
return self.name
|
|
|
|
|
|
class Page(models.Model):
|
|
book = models.ForeignKey(Book, on_delete=models.CASCADE)
|
|
text = models.TextField()
|