Mercurial > hg > Feedworm

annotate backend/couchdb/CouchDbBackend.py @ 156:2d159eb2a91b

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displaying the preferences dialog works, saving prefs doesn't yet
author Dirk Olmes <dirk@xanthippe.ping.de>
date Sat, 27 Aug 2011 10:17:07 +0200
parents a05719a6175e
children e8bb107a74e1
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1
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2 from FeedUpdater import FeedUpdater
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3 from Preferences import Preferences
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4 from backend.AbstractBackend import AbstractBackend
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5 from backend.couchdb.Feed import Feed
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6 from backend.couchdb.FeedEntry import FeedEntry
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7 import couchdb
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8
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9 DATABASE = "feedtest"
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11 class CouchDbBackend(AbstractBackend):
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12 '''
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13 Backend that uses CouchDB for persistence
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14 '''
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16 def __init__(self):
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17 server = couchdb.Server()
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18 self.database = server[DATABASE]
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20 def preferences(self):
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21 return Preferences(self.database)
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23 #
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24 # handling of feeds
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25 #
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27 def getFeeds(self):
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28 if self.preferences().showOnlyUnreadFeeds():
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29 self.feeds = self._getUnreadFeeds()
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30 else:
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31 # make sure that the results are actually fetched into memory, otherwise we'll pass
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32 # a ViewResults instance around which is not what we want
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33 self.feeds = list(Feed.all(self.database))
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34 return self.feeds
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36 def _getUnreadFeeds(self):
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37 raise Exception("not yet implemented")
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39 def _retrieveEntriesForSelectedFeed(self, hideReadEntries):
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40 # TODO how to hide read entries if requested?
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41 viewResults = FeedEntry.view(self.database, "feedtest/feedEntries_by_feed",
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42 key=self.selectedFeed.id)
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43 return list(viewResults)
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45 def markSelectedFeedAsRead(self):
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46 for feedEntry in self.entriesForSelectedFeed():
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47 feedEntry.markRead(self.database)
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49 #
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50 # handling of the selected feed entry
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51 #
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53 def _markSelectedFeedEntryRead(self):
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54 self.selectedFeedEntry.markRead(self.database)
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56 def toggleSelectedFeedEntryRead(self):
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57 self.selectedFeedEntry.toggleRead(self.database)
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60 def toggleRead(self, feedEntry):
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61 raise Exception("not yet implemented")
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63 def markAllEntriesRead(self, feed):
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64 raise Exception("not yet implemented")
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66 def createFeed(self, url):
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67 raise Exception("not yet implemented")
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69 def updateFeed(self, feed, changes):
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70 raise Exception("not yet implemented")
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72 def deleteFeed(self, feed):
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73 raise Exception("not yet implemented")
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75 def entriesForFeed(self, feed, hideReadEntries):
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76 viewName = "feedtest/feedEntries_by_feed"
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77 if hideReadEntries:
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78 viewName = "feedtest/unread_feedEntries_by_feed"
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79 return list(FeedEntry.view(self.database, viewName))
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81 def markFeedEntriesAsRead(self, indices):
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82 for index in indices:
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83 feedEntry = self.entriesForSelectedFeed()[index]
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84 feedEntry.markRead(self.database)
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86 def updateAllFeeds(self):
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87 # TODO use a view instead of iterating all feeds
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88 allFeeds = Feed.all(self.database)
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89 for feed in allFeeds:
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90 if feed.needsUpdate():
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91 FeedUpdater(feed, self.database).update()
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93 def expireFeedEntries(self):
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94 print("Expiring feeds is not yet implemented")
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95 # raise Exception("not yet implemented")
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