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