subclasses of the base model.
def notify_observer(*args, **kwargs):
pass
+# This manager will be inherited by all subclasses because
+# the core model is abstract.
class PlCoreBaseManager(models.Manager):
def get_query_set(self):
return super(PlCoreBaseManager, self).get_query_set().filter(deleted=False)
deleted = models.BooleanField(default=False)
class Meta:
+ # Changing abstract to False would require the managers of subclasses of
+ # PlCoreBase to be customized individually.
abstract = True
app_label = "core"