Committin a 'working' checkpoint before I break more stuff.

apps/objects/managers/attribute.py

@@ -0,0 +1,18 @@
+"""
+Custom manager for Attribute objects.
+"""
+from django.db import models
+
+import defines_global
+
+class AttributeManager(models.Manager):
+    def is_modifiable_attrib(self, attribname):
+        """
+        Check to see if a particular attribute is modifiable.
+
+        attribname: (string) An attribute name to check.
+        """
+        if attribname.upper() not in defines_global.NOSET_ATTRIBS:
+            return True
+        else:
+            return False