1a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch# Copyright (C) 2010 Google Inc. All rights reserved.
2231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block#
3231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block# Redistribution and use in source and binary forms, with or without
4231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block# modification, are permitted provided that the following conditions are
5231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block# met:
6a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch#
7231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block#     * Redistributions of source code must retain the above copyright
8231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block# notice, this list of conditions and the following disclaimer.
9231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block#     * Redistributions in binary form must reproduce the above
10231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block# copyright notice, this list of conditions and the following disclaimer
11231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block# in the documentation and/or other materials provided with the
12231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block# distribution.
13231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block#     * Neither the name of Google Inc. nor the names of its
14231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block# contributors may be used to endorse or promote products derived from
15231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block# this software without specific prior written permission.
16a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch#
17231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
19231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
20231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
21231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
22231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
23231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
27231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block
29d0825bca7fe65beaee391d30da42e937db621564Steve Block
30a94275402997c11dd2e778633dacf4b7e630a35dBen Murdochclass QueuePropertyMixin(object):
31a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch    def _queue_getter(self):
32a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch        # Import at runtime to avoid circular imports
33a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch        from model.queues import Queue
34a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch        return Queue.queue_with_name(self.queue_name)
35d0825bca7fe65beaee391d30da42e937db621564Steve Block
36a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch    def _queue_setter(self, queue):
37a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch        self.queue_name = queue.name() if queue else None
38d0825bca7fe65beaee391d30da42e937db621564Steve Block
39a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch    queue = property(_queue_getter, _queue_setter)
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