Mercurial > hg > Feedworm

annotate backend/sqlalchemy/Preferences.py @ 119:04a730f9d07d backend

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move all sqlalchemy related classes to the respective sub-package. use a backend to abstract from access to the data
author Dirk Olmes <dirk@xanthippe.ping.de>
date Sun, 21 Aug 2011 03:55:16 +0200
parents Preferences.py@c17a224bc251
children e830fa1cc7a2
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12ed8b5fa08c first system preference: configure app to stat maximized.
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1
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2 from Preference import Preference
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4 DAYS_TO_KEEP_FEED_ENTRIES = "DAYS_TO_KEEP_FEED_ENTRIES"
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5 HIDE_READ_ENTRIES = "HIDE_READ_FEED_ENTRIES"
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6 PROXY_HOST = "PROXY_HOST"
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7 PROXY_PORT = "PROXY_PORT"
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8 SHOW_ONLY_UNREAD_FEEDS = "SHOW_ONLY_UNREAD_FEEDS"
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9 START_MAXIMIZED = "START_MAXIMIZED"
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11 def str2bool(string):
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12 return string.lower() in ["yes", "true", "t", "1"]
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14 def bool2str(bool):
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15 if bool:
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16 return "True"
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17 else:
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18 return "False"
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20 class Preferences(object):
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21 def __init__(self, session):
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22 self.session = session
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23 self.cache = {}
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25 def _cachedPreference(self, key, defaultValue=None, addIfMissing=True):
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26 if self.cache.has_key(key):
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27 return self.cache[key]
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28 else:
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29 pref = Preference.forKey(key, self.session)
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30 if pref is not None:
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31 self.cache[key] = pref
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32 elif pref is None and addIfMissing:
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33 pref = Preference(key, str(defaultValue))
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34 self.session.add(pref)
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35 self.cache[key] = pref
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36 return pref
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38 def startMaximized(self):
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39 pref = self._cachedPreference(START_MAXIMIZED, False)
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40 return str2bool(pref.value)
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41
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42 def setStartMaximized(self, flag):
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43 pref = self._cachedPreference(START_MAXIMIZED)
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44 pref.value = bool2str(flag)
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45
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46 def hideReadFeedEntries(self):
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47 pref = self._cachedPreference(HIDE_READ_ENTRIES, False)
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48 return str2bool(pref.value)
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49
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50 def setHideReadFeedEntries(self, flag):
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51 pref = self._cachedPreference(HIDE_READ_ENTRIES)
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52 pref.value = bool2str(flag)
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54 def showOnlyUnreadFeeds(self):
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55 pref = self._cachedPreference(SHOW_ONLY_UNREAD_FEEDS, False)
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56 return str2bool(pref.value)
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58 def setShowOnlyUnreadFeeds(self, flag):
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59 pref = self._cachedPreference(SHOW_ONLY_UNREAD_FEEDS)
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60 pref.value = bool2str(flag)
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62 def proxyHost(self):
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63 pref = self._cachedPreference(PROXY_HOST)
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64 return pref.value
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65
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66 def setProxyHost(self, hostname):
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67 if hostname is None:
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68 pref = self._cachedPreference(PROXY_HOST, addIfMissing=False)
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69 if pref is not None:
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70 self.session.delete(pref)
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71 del(self.cache[PROXY_HOST])
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72 else:
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73 pref = self._cachedPreference(PROXY_HOST)
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74 pref.value = str(hostname)
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75
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76 def proxyPort(self):
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77 pref = self._cachedPreference(PROXY_PORT, 3128)
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78 return int(pref.value)
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79
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80 def setProxyPort(self, port):
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81 if port is None:
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82 pref = self._cachedPreference(PROXY_PORT, addIfMissing=False)
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83 if pref is not None:
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84 self.session.delete(pref)
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85 del(self.cache[PROXY_PORT])
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86 else:
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87 pref = self._cachedPreference(PROXY_PORT)
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88 pref.value = str(port)
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89
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90 def isProxyConfigured(self):
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91 pref = self._cachedPreference(PROXY_HOST, addIfMissing=False)
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92 return pref is not None
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94 def daysToKeepFeedEntries(self):
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95 pref = self._cachedPreference(DAYS_TO_KEEP_FEED_ENTRIES, 90, addIfMissing=True)
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96 return int(pref.value)
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98 def setDaysToKeepFeedEntries(self, dayString):
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99 pref = self._cachedPreference(DAYS_TO_KEEP_FEED_ENTRIES)
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100 pref.value = dayString