* RelLib/_*.py: Make objects serialize all the way down to built-in

python objects, so that Gramps classes are never pickled.
* Date.py, CalSdn.py: Move to RelLib.
* src/dates/Date_*.py: Use new Date.
* src/plugins/*.py: Use new Date.
* src/GrampsDb/_*.py: Use new Date, new unserialize.
* src/*.py: Use new Date.


svn: r5875

gramps2/src/RelLib/_SourceNote.py

@@ -1,7 +1,7 @@
 #
 # Gramps - a GTK+/GNOME based genealogy program
 #
-# Copyright (C) 2000-2005  Donald N. Allingham
+# Copyright (C) 2000-2006  Donald N. Allingham
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -57,6 +57,16 @@ class SourceNote(BaseObject,NoteBase):
         else:
             self.source_list = []
 
+    def serialize(self):
+        return (NoteBase.serialize(self),
+                [sref.serialize() for sref in self.source_list])
+
+    def unserialize(self,data):
+        (note,source_list) = data
+        NoteBase.unserialize(self,note)
+        self.source_list = [SourceRef().unserialize(item)
+                            for item in source_list]
+
     def add_source_reference(self,src_ref) :
         """
         Adds a source reference to this object.