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"""
13. 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(maxlength=20)
last_name = models.CharField(maxlength=20)
def __str__(self):
return "%s %s" % (self.first_name, self.last_name)
def save(self):
print "Before save"
super(Person, self).save() # Call the "real" save() method
print "After save"
def delete(self):
print "Before deletion"
super(Person, self).delete() # Call the "real" delete() method
print "After deletion"
__test__ = {'API_TESTS':"""
>>> p1 = Person(first_name='John', last_name='Smith')
>>> p1.save()
Before save
After save
>>> Person.objects.all()
[<Person: John Smith>]
>>> p1.delete()
Before deletion
After deletion
>>> Person.objects.all()
[]
"""}
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