Fixed some code for registering class changes to avoid the

registration of data managers that are None.  This code will,
eventually, go away, since new persistent classes will
take care of their own registration.

lib/python/ZClasses/Property.py

@@ -23,13 +23,13 @@ class ClassCaretaker:
     def __setattr__(self, name, v):
         klass=self._k
         setattr(klass, name, v)
-        if not getattr(klass,'_p_changed',None):
+        if not getattr(klass,'_p_changed',None) and klass._p_jar is not None:
             get_transaction().register(klass)
             klass._p_changed=1
     def __delattr__(self, name):
         klass=self._k
         delattr(klass, name)
-        if not getattr(klass,'_p_changed',None):
+        if not getattr(klass,'_p_changed',None) and klass._p_jar is not None:
             get_transaction().register(klass)
             klass._p_changed=1
 
@@ -270,7 +270,7 @@ class ZInstanceSheet(OFS.PropertySheets.FixedSchema,
 Globals.default__class_init__(ZInstanceSheet)
 
 def rclass(klass):
-    if not getattr(klass, '_p_changed', 0):
+    if not getattr(klass, '_p_changed', 0) and klass._p_jar is not None:
         get_transaction().register(klass)
         klass._p_changed=1
 

lib/python/ZClasses/ZClass.py

@@ -519,7 +519,7 @@ class ZClass( Base
     def setClassAttr(self, name, value):
         c=self._zclass_
         setattr(c, name, value)
-        if not c._p_changed:
+        if (not c._p_changed) and (c._p_jar is not None):
             get_transaction().register(c)
             c._p_changed=1
 
@@ -527,7 +527,7 @@ class ZClass( Base
     def delClassAttr(self, name):
         c=self._zclass_
         delattr(c, name)
-        if not c._p_changed:
+        if (not c._p_changed) and (c._p_jar is not None):
             get_transaction().register(c)
             c._p_changed=1