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"""
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
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