[IMP] core: deprecate method cr.after()

Use the more convenient `cr.postcommit.add()` instead.

closes odoo/odoo#57043

X-original-commit: e9e37091a65d5ae2caa9eb6728abaffb7c9555a8
Related: odoo/enterprise#12928
Signed-off-by: Raphael Collet (rco) <rco@openerp.com>

odoo/sql_db.py

@@ -14,6 +14,7 @@ import itertools
 import logging
 import time
 import uuid
+import warnings
 
 from decorator import decorator
 import psycopg2
@@ -420,6 +421,10 @@ class Cursor(BaseCursor):
             back or committed independently. You may consider the use of a
             dedicated temporary cursor to do some database operation.
         """
+        warnings.warn(
+            "Cursor.after() is deprecated, use Cursor.postcommit.add() instead.",
+            DeprecationWarning,
+        )
         if event == 'commit':
             self.postcommit.add(func)
         elif event == 'rollback':