| """ |
| 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(max_length=20) |
| last_name = models.CharField(max_length=20) |
| |
| def __init__(self, *args, **kwargs): |
| super(Person, self).__init__(*args, **kwargs) |
| self.data = [] |
| |
| def __unicode__(self): |
| return u"%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") |
