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"""
Adding hooks before/after saving and deleting
To execute arbitrary code around ``save()`` and ``delete()``, just subclass
the methods.
"""
from __future__ import unicode_literals
from django.db import models
from django.utils.encoding import python_2_unicode_compatible
@python_2_unicode_compatible
class Person(models.Model):
first_name = models.CharField(max_length=20)
last_name = models.CharField(max_length=20)
def __init__(self, *args, **kwargs):
super(Person, self).__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(Person, self).save(*args, **kwargs)
self.data.append("After save")
def delete(self):
self.data.append("Before deletion")
# Call the "real" delete() method
super(Person, self).delete()
self.data.append("After deletion")
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