method for getting base database, if a proxy

svn: r15465

src/gen/db/read.py

@@ -1466,3 +1466,8 @@ class DbBsddbRead(DbReadBase, Callback):
         """
         return self._bm_changes > 0
 
+    def get_base_db(self):
+        """
+        Return the base database.
+        """
+        return self

src/gen/proxy/proxybase.py

@@ -722,3 +722,12 @@ class ProxyDbBase(DbReadBase):
     def get_note_bookmarks(self):
         """returns the list of Note handles in the bookmarks"""
         return self.note_bookmarks
+
+    def get_base_db(self):
+        """
+        Return the base database.
+        """
+        basedb = self
+        while isinstance(basedb, ProxyDbBase):
+            basedb = basedb.db
+        return basedb