implement new task osusers.tasks.delete_ldap_group

gvaldap/osusers/tasks.py

@@ -217,3 +217,25 @@ def delete_ldap_group_if_empty(groupname):
                 ldapgroup.dn, len(ldapgroup.members))
             )
     return False
+
+
+@shared_task
+def delete_ldap_group(groupname):
+    """
+    This taks deletes the given group.
+
+    :param str groupname: the group name
+    :return: True if the user has been deleted, False otherwise
+    :rtype: boolean
+
+    """
+    try:
+        ldapgroup = LdapGroup.objects.get(name=groupname)
+    except LdapGroup.DoesNotExist:
+        _logger.info('ldap group with name {0} does not exist'.format(
+            groupname)
+        )
+    else:
+        ldapgroup.delete()
+        return True
+    return False