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view sat_pubsub/container.py @ 451:0e6e176cb572

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pgsql: fix items order: Due to a misinterpretation, items where returned in wrong order when RSM was used. Pubsub vanilla `max_items` is reversing the items order to get last items, but when this attribute is not used (RSM being used or not), the items must be in chronological order. This patch fixes it, so RSM returns oldest items by defaut, and empty `<before/>` must be used to get last page (and thus most recent items). Items are always finally ordered chronologically inside the returned page (default by `update` time, but this can be modified when a specific order is requested). Reference field is also fixed to use `updated` instead of `item_id` when item are ordered by `update`.
author Goffi <goffi@goffi.org>
date Sun, 06 Jun 2021 19:42:57 +0200
parents ccb2a22ea0fc
children
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#!/usr/bin/env python3
#-*- coding: utf-8 -*-

# Copyright (C) 2016 Jérôme Poisson (goffi@goffi.org)

# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.

# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU Affero General Public License for more details.

# You should have received a copy of the GNU Affero General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.


from collections import namedtuple


ItemData = namedtuple('ItemData', ('item', 'access_model', 'config', 'categories', 'created', 'updated', 'new'))
ItemData.__new__.__defaults__ = (None,) * (len(ItemData._fields) - 1) # Only item is mandatory