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authorCédric Bonhomme <cedric@cedricbonhomme.org>2015-11-25 22:45:43 +0100
committerCédric Bonhomme <cedric@cedricbonhomme.org>2015-11-25 22:45:43 +0100
commitb2618e9404b84cc62d4becb02436233a0d53b375 (patch)
treea31f2dc76d23967fa0243374cf475923a4b7e451 /web/controllers/feed.py
parentUpdated default platform URL (for Heroku...). (diff)
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Rfactorization. Just a start...
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+#! /usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# jarr - A Web based news aggregator.
+# Copyright (C) 2010-2015 Cédric Bonhomme - https://www.JARR-aggregator.org
+#
+# For more information : https://github.com/JARR-aggregator/JARR/
+#
+# 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/>.
+
+import logging
+from datetime import datetime, timedelta
+
+import conf
+from .abstract import AbstractController
+from .icon import IconController
+from web.models import Feed
+
+logger = logging.getLogger(__name__)
+DEFAULT_LIMIT = 5
+DEFAULT_REFRESH_RATE = 60
+DEFAULT_MAX_ERROR = conf.DEFAULT_MAX_ERROR
+
+
+class FeedController(AbstractController):
+ _db_cls = Feed
+
+ def list_late(self, max_last, max_error=DEFAULT_MAX_ERROR,
+ limit=DEFAULT_LIMIT):
+ return [feed for feed in self.read(
+ error_count__lt=max_error, enabled=True,
+ last_retrieved__lt=max_last)
+ .order_by('last_retrieved')
+ .limit(limit)]
+
+ def list_fetchable(self, max_error=DEFAULT_MAX_ERROR, limit=DEFAULT_LIMIT,
+ refresh_rate=DEFAULT_REFRESH_RATE):
+ now = datetime.now()
+ max_last = now - timedelta(minutes=refresh_rate)
+ feeds = self.list_late(max_last, max_error, limit)
+ if feeds:
+ self.update({'id__in': [feed.id for feed in feeds]},
+ {'last_retrieved': now})
+ return feeds
+
+ def _ensure_icon(self, attrs):
+ if not attrs.get('icon_url'):
+ return
+ icon_contr = IconController()
+ if not icon_contr.read(url=attrs['icon_url']).count():
+ icon_contr.create(**{'url': attrs['icon_url']})
+
+ def create(self, **attrs):
+ self._ensure_icon(attrs)
+ return super().create(**attrs)
+
+ def update(self, filters, attrs):
+ self._ensure_icon(attrs)
+ return super().update(filters, attrs)
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