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annotate feedupdate-main.py @ 126:089ee60b28fb backend

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mark feed entries as read in the backend
author Dirk Olmes <dirk@xanthippe.ping.de>
date Mon, 22 Aug 2011 14:04:42 +0200
parents 43c234c8fe87
children 32a173cb081c
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8a624ee48a74 First skeleton for sqlalchemy: define the mapping and create the first feed
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1 #!/usr/bin/env python
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3 import Database
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525a52169f60 Make FeedEntry table object available in Mapping to use it to expire old, read feed entries.
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4 from datetime import datetime, timedelta
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5 from Feed import Feed
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aaec263f07ca Feeds manage the point in time when the next update should happen. FeedUpdater only updates feeds that are due.
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6 import FeedUpdater
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7 import logging
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8 import Mapping
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9 from Preferences import Preferences
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10 from sqlalchemy.sql import and_
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11 import util
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13 logger = logging.getLogger("feedupdater")
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e0199f383442 retrieve a feed for the given URL, store entries as feed_entry rows into the database
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15 def listFeeds(session):
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16 allFeeds = session.query(Feed)
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17 for feed in allFeeds:
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18 logger.info("feed: " + feed.name)
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e0199f383442 retrieve a feed for the given URL, store entries as feed_entry rows into the database
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19 for entry in feed.entries:
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20 print entry.title
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22 def expireFeedEntries(session):
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23 expireDate = _calculateExpireDate(session)
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24 logger.info("expiring entries older than " + str(expireDate))
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25 feedEntry = Mapping.feedEntryTable
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26 deleteStatement = feedEntry.delete().where(
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27 and_(feedEntry.c.create_timestamp < expireDate, feedEntry.c.read == 1)
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28 )
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29 deleteStatement.execute()
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31 def _calculateExpireDate(session):
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32 now = datetime.now()
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33 daysToKeepFeedEntries = Preferences(session).daysToKeepFeedEntries()
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34 delta = timedelta(days=daysToKeepFeedEntries)
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35 return now - delta
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37 if __name__ == "__main__":
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38 util.configureLogging()
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39 session = Database.createSession()
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41 #util.loadFeeds(session)
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42 #util.forceUpdateAllFeeds(session)
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87317ba41816 add a creation date for the feed entry
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43 #listFeeds(session)
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d21f5025034d feedupdate-main updates all feeds per default
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44 #OpmlImport.createFeedsFromOPML(session, "feed-data/feeds.opml.xml")
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45 FeedUpdater.updateAllFeeds(session)
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46 expireFeedEntries(session)
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48 session.close()