Mercurial > hg > Feedworm

annotate backend/sqlalchemy/SqlAlchemyBackend.py @ 125:514e5d7dca98 backend

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deleting a feed is now done via the backend
author Dirk Olmes <dirk@xanthippe.ping.de>
date Mon, 22 Aug 2011 11:22:45 +0200
parents a4b2077c9603
children 089ee60b28fb
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1
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2 from Preferences import Preferences
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3 import Database
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4 import FeedList
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5 import FeedUpdater
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6 import logging
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7 import util
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8
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9 class SqlAlchemyBackend(object):
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10 '''
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11 Backend that uses sqlalchemy for persistence
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12 '''
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14 def __init__(self):
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15 self._initLogging()
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16 self.session = Database.createSession()
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17 self.prefs = Preferences(self.session)
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18 self.updater = None
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20 def _initLogging(self):
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21 logging.getLogger("sqlalchemy.orm").setLevel(logging.WARN)
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23 sqlalchemyLogLevel = logging.ERROR
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24 if util.databaseLoggingEnabled():
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25 sqlalchemyLogLevel = logging.INFO
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26 logging.getLogger("sqlalchemy").setLevel(sqlalchemyLogLevel)
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28 def preferences(self):
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29 return self.prefs
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31 def getFeeds(self):
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32 return FeedList.getFeeds(self.session)
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33
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34 def toggleRead(self, feedEntry):
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35 feedEntry.toggleRead()
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36 self.session.commit()
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37
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38 def markAllEntriesRead(self, feed):
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39 feed.markAllEntriesRead()
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40 self.session.commit()
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42 def createFeed(self, url):
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43 try:
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44 FeedUpdater.createNewFeed(url, self.session)
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45 self.session.commit()
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46 except AttributeError as ae:
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47 self.session.rollback()
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48 raise ae
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49
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50 def updateFeed(self, feed, changes):
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51 feed.takeChangesFrom(changes)
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52 feed.incrementNextUpdateDate()
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53 self.session.commit()
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54
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55 def deleteFeed(self, feed):
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56 self.session.delete(feed)
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57 self.session.commit()
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59 def dispose(self):
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60 # save all uncommitted state, just in case
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61 self.session.commit()