diff --git a/planetstack/core/models/flavor.py b/planetstack/core/models/flavor.py
index 84a5427..27b2642 100644
--- a/planetstack/core/models/flavor.py
+++ b/planetstack/core/models/flavor.py
@@ -19,10 +19,6 @@
 
     def __unicode__(self):  return u'%s' % (self.name)
 
-    @staticmethod
-    def select_by_user(user):
-        return Flavor.objects.all()
-
 """ FlavorParameterType and FlavorParameter are below for completeness sake,
     waiting for the day we might want to add parameters to flavors.
 
diff --git a/planetstack/core/models/network.py b/planetstack/core/models/network.py
index 1010cae..51cc0c8 100644
--- a/planetstack/core/models/network.py
+++ b/planetstack/core/models/network.py
@@ -24,10 +24,6 @@
 
     def __unicode__(self):  return u'%s' % (self.name)
 
-    @staticmethod
-    def select_by_user(user):
-        return NetworkTemplate.objects.all()
-
 class Network(PlCoreBase):
     name = models.CharField(max_length=32)
     template = models.ForeignKey(NetworkTemplate)
diff --git a/planetstack/core/models/node.py b/planetstack/core/models/node.py
index 56aee68..9271268 100644
--- a/planetstack/core/models/node.py
+++ b/planetstack/core/models/node.py
@@ -15,7 +15,3 @@
 
     def __unicode__(self):  return u'%s' % (self.name)
 
-    @staticmethod
-    def select_by_user(user):
-        qs = Node.objects.all()
-        return qs
diff --git a/planetstack/core/models/plcorebase.py b/planetstack/core/models/plcorebase.py
index 51049a4..2ad6f76 100644
--- a/planetstack/core/models/plcorebase.py
+++ b/planetstack/core/models/plcorebase.py
@@ -149,7 +149,7 @@
         if not silent:
             notify_observer()
 
-        self.__initial = self._dict
+        self._initial = self._dict
 
     def save_by_user(self, user, *args, **kwds):
         if not self.can_update(user):
@@ -166,6 +166,12 @@
             raise PermissionDenied("You do not have permission to delete %s objects" % self.__class__.__name__)
         self.delete(*args, **kwds)
 
+    @classmethod
+    def select_by_user(cls, user):
+        # This should be overridden by descendant classes that want to perform
+        # filtering of visible objects by user.
+        return cls.objects.all()
+
 
 
 
diff --git a/planetstack/core/models/site.py b/planetstack/core/models/site.py
index 160b426..9f183b5 100644
--- a/planetstack/core/models/site.py
+++ b/planetstack/core/models/site.py
@@ -216,10 +216,6 @@
 
     def __unicode__(self):  return u'%s' % (self.name)
 
-    @staticmethod
-    def select_by_user(user):
-        return Deployment.objects.all()
-
 class DeploymentRole(PlCoreBase):
     #objects = DeploymentLinkManager()
     #deleted_objects = DeploymentLinkDeletionManager()
@@ -267,10 +263,6 @@
     deployment = models.ForeignKey(Deployment)
     tenant_id = models.CharField(null=True, blank=True, max_length=200, help_text="Keystone tenant id")    
 
-    @staticmethod
-    def select_by_user(user):
-        return SiteDeployments.objects.all()
-
     #class Meta:
     #    db_table = 'core_site_deployments'
     #    #auto_created = Site