Mercurial > hg > Feedworm

annotate backend/sqlalchemy/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 e830fa1cc7a2
children bb3c851b18b1
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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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37
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38 def commit(self):
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39 self.session.commit()
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40
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41 def rollback(self):
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42 self.session.rollback()
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44 def startMaximized(self):
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45 pref = self._cachedPreference(START_MAXIMIZED, False)
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46 return str2bool(pref.value)
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47
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48 def setStartMaximized(self, flag):
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49 pref = self._cachedPreference(START_MAXIMIZED)
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50 pref.value = bool2str(flag)
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51
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52 def hideReadFeedEntries(self):
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53 pref = self._cachedPreference(HIDE_READ_ENTRIES, False)
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54 return str2bool(pref.value)
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56 def setHideReadFeedEntries(self, flag):
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57 pref = self._cachedPreference(HIDE_READ_ENTRIES)
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58 pref.value = bool2str(flag)
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60 def showOnlyUnreadFeeds(self):
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61 pref = self._cachedPreference(SHOW_ONLY_UNREAD_FEEDS, False)
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62 return str2bool(pref.value)
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64 def setShowOnlyUnreadFeeds(self, flag):
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65 pref = self._cachedPreference(SHOW_ONLY_UNREAD_FEEDS)
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66 pref.value = bool2str(flag)
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68 def proxyHost(self):
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69 pref = self._cachedPreference(PROXY_HOST)
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70 return pref.value
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71
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72 def setProxyHost(self, hostname):
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73 if hostname is None:
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74 pref = self._cachedPreference(PROXY_HOST, addIfMissing=False)
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75 if pref is not None:
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76 self.session.delete(pref)
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77 del(self.cache[PROXY_HOST])
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78 else:
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79 pref = self._cachedPreference(PROXY_HOST)
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80 pref.value = str(hostname)
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82 def proxyPort(self):
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83 pref = self._cachedPreference(PROXY_PORT, 3128)
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84 return int(pref.value)
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85
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86 def setProxyPort(self, port):
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87 if port is None:
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88 pref = self._cachedPreference(PROXY_PORT, addIfMissing=False)
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89 if pref is not None:
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90 self.session.delete(pref)
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91 del(self.cache[PROXY_PORT])
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92 else:
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93 pref = self._cachedPreference(PROXY_PORT)
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94 pref.value = str(port)
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96 def isProxyConfigured(self):
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97 pref = self._cachedPreference(PROXY_HOST, addIfMissing=False)
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98 return pref is not None
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100 def daysToKeepFeedEntries(self):
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101 pref = self._cachedPreference(DAYS_TO_KEEP_FEED_ENTRIES, 90, addIfMissing=True)
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102 return int(pref.value)
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103
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104 def setDaysToKeepFeedEntries(self, dayString):
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105 pref = self._cachedPreference(DAYS_TO_KEEP_FEED_ENTRIES)
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106 pref.value = dayString