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
|
"""
Adding hooks before/after saving and deleting
To execute arbitrary code around ``save()`` and ``delete()``, just subclass
the methods.
"""
from django.db import models
class Person(models.Model):
first_name = models.CharField(max_length=20)
last_name = models.CharField(max_length=20)
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self.data = []
def __str__(self):
return "%s %s" % (self.first_name, self.last_name)
def save(self, *args, **kwargs):
self.data.append("Before save")
# Call the "real" save() method
super().save(*args, **kwargs)
self.data.append("After save")
def delete(self):
self.data.append("Before deletion")
# Call the "real" delete() method
super().delete()
self.data.append("After deletion")
|
