2 from django.db import models
3 from django.forms.models import model_to_dict
4 from openstack.event_manager import EventSender
7 class PlCoreBase(models.Model):
9 created = models.DateTimeField(auto_now_add=True)
10 updated = models.DateTimeField(auto_now=True)
16 def __init__(self, *args, **kwargs):
17 super(PlCoreBase, self).__init__(*args, **kwargs)
18 self.__initial = self._dict
24 diffs = [(k, (v, d2[k])) for k, v in d1.items() if v != d2[k]]
28 def has_changed(self):
29 return bool(self.diff)
32 def changed_fields(self):
33 return self.diff.keys()
35 def get_field_diff(self, field_name):
36 return self.diff.get(field_name, None)
38 def save(self, *args, **kwargs):
39 super(PlCoreBase, self).save(*args, **kwargs)
41 # Tell the observer that the source database has been updated
44 self.__initial = self._dict
48 return model_to_dict(self, fields=[field.name for field in