--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/p4l/decorators.py	Fri Oct 11 11:46:18 2013 +0200
@@ -0,0 +1,55 @@
+# -*- coding: utf-8 -*-
+#
+# Copyright IRI (c) 2013
+#
+# contact@iri.centrepompidou.fr
+#
+# This software is governed by the CeCILL-B license under French law and
+# abiding by the rules of distribution of free software.  You can  use, 
+# modify and/ or redistribute the software under the terms of the CeCILL-B
+# license as circulated by CEA, CNRS and INRIA at the following URL
+# "http://www.cecill.info". 
+#
+# As a counterpart to the access to the source code and  rights to copy,
+# modify and redistribute granted by the license, users are provided only
+# with a limited warranty  and the software's author,  the holder of the
+# economic rights,  and the successive licensors  have only  limited
+# liability. 
+#
+# In this respect, the user's attention is drawn to the risks associated
+# with loading,  using,  modifying and/or developing or reproducing the
+# software by the user in light of its specific status of free software,
+# that may mean  that it is complicated to manipulate,  and  that  also
+# therefore means  that it is reserved for developers  and  experienced
+# professionals having in-depth computer knowledge. Users are therefore
+# encouraged to load and test the software's suitability as regards their
+# requirements in conditions enabling the security of their systems and/or 
+# data to be ensured and,  more generally, to use and operate it in the 
+# same conditions as regards security. 
+#
+# The fact that you are presently reading this means that you have had
+# knowledge of the CeCILL-B license and that you accept its terms.
+#
+from django.contrib.auth import REDIRECT_FIELD_NAME
+
+'''
+Created on Oct 10, 2013
+
+@author: ymh
+'''
+from django.contrib.auth.decorators import user_passes_test
+
+
+def is_staff(function=None, redirect_field_name=REDIRECT_FIELD_NAME, login_url=None):
+    """
+    Decorator for views that checks that the user is logged in, redirecting
+    to the log-in page if necessary.
+    """
+    actual_decorator = user_passes_test(
+        lambda u: u.is_staff,
+        login_url=login_url,
+        redirect_field_name=redirect_field_name
+    )
+    if function:
+        return actual_decorator(function)
+    return actual_decorator