Add a method to sort children according to alphabetical order.

modules/plugin_dbui/navtree.py

@@ -159,3 +159,19 @@ class Node(object):
         
         """
         return {'text': self.text, 'children': self.children}
+
+
+    def sort_children(self):
+        """sort children according to alphabetical order.
+        
+        """
+        di = {}
+        for child in self.children:
+            di[child['text']] = child
+            
+        names = di.keys()
+        names.sort(cmp=locale.strcoll)
+        
+        self.children = []
+        for name in names:
+            self.children.append(di[name])