class Tracked(models.Model):
name = models.CharField(max_length=20)
number = models.IntegerField()
mutable = MutableField(default=None)
tracker = FieldTracker()
def save(self, *args, **kwargs):
""" No-op save() to ensure that FieldTracker.patch_save() works. """
super().save(*args, **kwargs)
class TrackerTimeStamped(TimeStampedModel):
name = models.CharField(max_length=20)
number = models.IntegerField()
mutable = MutableField(default=None)
tracker = FieldTracker()
def save(self, *args, **kwargs):
""" Automatically add "modified" to update_fields."""
update_fields = kwargs.get('update_fields')
if update_fields is not None:
kwargs['update_fields'] = set(update_fields) | {'modified'}
super().save(*args, **kwargs)
class ModelTracked(models.Model):
name = models.CharField(max_length=20)
number = models.IntegerField()
mutable = MutableField(default=None)
tracker = ModelTracker()
class TrackedAbstract(AbstractTracked):
name = models.CharField(max_length=20)
number = models.IntegerField()
mutable = MutableField(default=None)
tracker = FieldTracker()
