add more ldap tasks

- add custom celery router osusers.tasks.LdapRouter
- add tasks add_ldap_user_to_group, delete_ldap_group_if_empty,
  delete_ldap_user and remove_ldap_user_from_group
- implement osusers.models.Group.save and osusers.models.Group.delete
- implement save, delete and set_password methods in osusers.models.User
- implement save and delete methods in osusers.models.AdditionalGroup

gnuviechadmin/osusers/tasks.py

@@ -3,6 +3,16 @@ from __future__ import absolute_import
 from celery import shared_task
 
 
+class LdapRouter(object):
+
+    def route_for_task(self, task, args=None, kwargs=None):
+        if 'ldap' in task:
+            return {'exchange': 'ldap',
+                    'exchange_type': 'direct',
+                    'queue': 'ldap'}
+        return None
+
+
 @shared_task
 def create_ldap_group(group):
     return group.groupname
@@ -11,3 +21,23 @@ def create_ldap_group(group):
 @shared_task
 def create_ldap_user(user, password):
     return user.username
+
+
+@shared_task
+def add_ldap_user_to_group(username, groupname):
+    pass
+
+
+@shared_task
+def remove_ldap_user_from_group(username, groupname):
+    pass
+
+
+@shared_task
+def delete_ldap_user(user):
+    pass
+
+
+@shared_task
+def delete_ldap_group_if_empty(group):
+    pass