1 # -*- coding: utf-8 -*-
2 "default plugin for cache: set it in a simple dictionary"
3 # Copyright (C) 2013 Team tiramisu (see AUTHORS for all contributors)
5 # This program is free software; you can redistribute it and/or modify
6 # it under the terms of the GNU General Public License as published by
7 # the Free Software Foundation; either version 2 of the License, or
8 # (at your option) any later version.
10 # This program is distributed in the hope that it will be useful,
11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 # GNU General Public License for more details.
15 # You should have received a copy of the GNU General Public License
16 # along with this program; if not, write to the Free Software
17 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 # ____________________________________________________________
20 from tiramisu.i18n import _
21 from tiramisu.error import ConfigError
24 class Setting(object):
36 def delete_session(session_id):
37 raise ConfigError(_('dictionary storage cannot delete session'))
40 class Storage(object):
41 __slots__ = ('session_id',)
42 storage = 'dictionary'
44 def __init__(self, session_id, persistent):
45 if session_id in _list_sessions:
46 raise ValueError(_('session already used'))
48 raise ValueError(_('a dictionary cannot be persistent'))
49 self.session_id = session_id
50 _list_sessions.append(self.session_id)
54 _list_sessions.remove(self.session_id)
55 except AttributeError:
60 __slots__ = ('_cache', 'storage')
63 def __init__(self, storage):
65 self.storage = storage
67 def setcache(self, cache_type, path, val, time):
68 self._cache[path] = (val, time)
70 def getcache(self, cache_type, path, exp):
71 value, created = self._cache[path]
76 def hascache(self, cache_type, path):
77 """ path is in the cache
79 :param cache_type: value | property
80 :param path: the path's option
82 return path in self._cache
84 def reset_expired_cache(self, cache_type, exp):
85 for key in tuple(self._cache.keys()):
86 val, created = self._cache[key]
90 def reset_all_cache(self, cache_type):
94 def get_cached(self, cache_type, context):
95 """return all values in a dictionary
96 example: {'path1': ('value1', 'time1'), 'path2': ('value2', 'time2')}