added initial fast model implementation

svn: r5872

src/Models/_PersonTreeModel.py

@@ -0,0 +1,33 @@
+
+import gtk
+import time
+import bsddb
+import cPickle
+import logging
+log = logging.getLogger(".")
+
+from _PathCursor import PathCursor
+from _ListCursor import ListCursor
+
+from _FastModel import FastModel
+import RelLib
+
+
+class PersonTreeModel(FastModel):
+    """Provides a fast model interface to the Person table.
+    """
+        
+    def __init__(self,db):
+        FastModel.__init__(self,db)
+
+    def _get_table(self,db):
+        return db.surnames
+
+    def _get_cursor(self,db):
+        return PathCursor(db.surnames.cursor())
+
+    def _get_object_class(self,db):
+        return RelLib.Person
+
+    def _get_length(self,db):
+        return self._table.stat()['nkeys']