From 1643427fa31bdbe0d60990465087f91a0cf2b8e6 Mon Sep 17 00:00:00 2001
From: Griatch <griatch@gmail.com>
Date: Sat, 8 Dec 2012 20:26:44 +0100
Subject: [PATCH] Added at_set hook for Attributes. This is a first step
 towards OOB definition.

---
 src/typeclasses/models.py | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/typeclasses/models.py b/src/typeclasses/models.py
index a30a92d508..711ee4857a 100644
--- a/src/typeclasses/models.py
+++ b/src/typeclasses/models.py
@@ -429,6 +429,8 @@ class Attribute(SharedMemoryModel):
         self.no_cache = False
         self.db_value = to_unicode(_PDUMPS(to_str(new_value)))
         self.save()
+        # call attribute hook
+        self.at_set(new_value)
 
     #@value.deleter
     def __value_del(self):
@@ -619,6 +621,12 @@ class Attribute(SharedMemoryModel):
         """
         return self.locks.check(accessing_obj, access_type=access_type, default=default)
 
+    def at_set(self, new_value):
+        """
+        Hook method called when the attribute changes value.
+        """
+        pass
+
 
 #------------------------------------------------------------
 #