+# 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)
+
+ # default values for created and updated are only there to keep evolution
+ # from failing.
+class PlCoreBase(models.Model):
+ objects = PlCoreBaseManager()
+ created = models.DateTimeField(auto_now_add=True, default=datetime.datetime.now())
+ updated = models.DateTimeField(auto_now=True, default=datetime.datetime.now())
+ enacted = models.DateTimeField(null=True, default=None)
+ backend_status = models.CharField(max_length=140,
+ default="Provisioning in progress")
+ deleted = models.BooleanField(default=False)