--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/parts/django/tests/modeltests/save_delete_hooks/models.py Sat Jan 08 11:20:57 2011 +0530
@@ -0,0 +1,32 @@
+"""
+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")