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annotate backend/couchdb/Preferences.py @ 169:91a24f499318

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introdue an abstraction for the name of the database so it can be changed via commandline parameter
author dirk
date Fri, 09 Sep 2011 14:52:54 +0200
parents e8bb107a74e1
children 214addba1f93
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91a24f499318 introdue an abstraction for the name of the database so it can be changed via commandline parameter
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91a24f499318 introdue an abstraction for the name of the database so it can be changed via commandline parameter
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2 import CouchDb
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3
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4 DAYS_TO_KEEP_FEED_ENTRIES = "daysToKeepFeedEntries"
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5 HIDE_READ_FEED_ENTRIES = "hideReadFeedEntries"
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6 PROXY_HOST = "proxyHost"
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7 PROXY_PORT = "proxyPort"
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8 SHOW_ONLY_UNREAD_FEEDS = "showOnlyUnreadFeeds"
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9 START_MAXIMIZED = "startMaximized"
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11 class Preferences(object):
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12 def __init__(self, database):
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13 self.database = database
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14 self._initDocument()
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15 self.documentIsDirty = False
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16
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17 def _initDocument(self):
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18 viewResults = self.database.view(CouchDb.preference())
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19 try:
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20 row = iter(viewResults).next()
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21 self.document = self.database[row.id]
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22 except StopIteration:
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23 empty = { "doctype" : "preferences" }
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24 doc_id, doc_rev = self.database.save(empty) #@UnusedVariable
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25 self.document = self.database[doc_id]
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26
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27 def _documentValue(self, key, defaultValue=None):
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28 if key in self.document.keys():
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29 return self.document[key]
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30 else:
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31 return defaultValue
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32
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33 def _setDocumentValue(self, key, value):
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34 self.document[key] = value
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35 self.documentIsDirty = True
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36
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37 def isProxyConfigured(self):
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38 return self.proxyHost() is not None
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39
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40 def proxyHost(self):
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41 return self._documentValue(PROXY_HOST)
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42
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43 def setProxyHost(self, hostname):
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44 if hostname is None:
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45 if PROXY_HOST in self.document.keys():
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46 del self.document[PROXY_HOST]
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47 self.documentIsDirty = True
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48 else:
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49 self._setDocumentValue(PROXY_HOST, hostname)
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50
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51 def proxyPort(self):
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52 return self._documentValue(PROXY_PORT)
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53
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54 def setProxyPort(self, port):
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55 if port is None:
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56 if PROXY_PORT in self.document.keys():
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57 del self.document[PROXY_PORT]
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58 self.documenIsDirty = True
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59 else:
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60 self._setDocumentValue(PROXY_PORT, port)
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62 def showOnlyUnreadFeeds(self):
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63 return self._documentValue(SHOW_ONLY_UNREAD_FEEDS, False)
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64
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65 def setShowOnlyUnreadFeeds(self, flag):
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66 self._setDocumentValue(SHOW_ONLY_UNREAD_FEEDS, flag)
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68 def startMaximized(self):
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69 return self._documentValue(START_MAXIMIZED, False)
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71 def setStartMaximized(self, flag):
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72 self._setDocumentValue(START_MAXIMIZED, flag)
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74 def hideReadFeedEntries(self):
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75 return self._documentValue(HIDE_READ_FEED_ENTRIES, False)
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77 def setHideReadFeedEntries(self, flag):
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78 self._setDocumentValue(HIDE_READ_FEED_ENTRIES, flag)
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80 def daysToKeepFeedEntries(self):
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81 return self._documentValue(DAYS_TO_KEEP_FEED_ENTRIES, 90)
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83 def setDaysToKeepFeedEntries(self, days):
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84 self._setDocumentValue(DAYS_TO_KEEP_FEED_ENTRIES, days)
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86 def commit(self):
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87 if self.documentIsDirty:
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88 self.database.save(self.document)
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90 def rollback(self):
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91 if self.documentIsDirty:
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92 self._initDocument()