view src/core/i18n.py @ 853:c2f6ada7858f

core (sqlite): automatic database update: - new Updater class check database consistency (by calculating a hash on the .schema), and updates base if necessary - database now has a version (1 for current, 0 will be for 0.3's database), for each change this version will be increased - creation statements and update statements are in the form of dict of dict with tuples. There is a help text at the top of the module to explain how it works - if we are on a development version, the updater try to update the database automaticaly (without deleting table or columns). The Updater.generateUpdateData method can be used to ease the creation of update data (i.e. the dictionary at the top, see the one for the key 1 for an example). - if there is an inconsistency, an exception is raised, and a message indicate the SQL statements that should fix the situation. - well... this is rather complicated, a KISS method would maybe have been better. The future will say if we need to simplify it :-/ - new DatabaseError exception
author Goffi <goffi@goffi.org>
date Sun, 23 Feb 2014 23:30:32 +0100
parents 1fe00f0c9a91
children e22e4cf86204
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#!/usr/bin/python
# -*- coding: utf-8 -*-

# SAT: a jabber client
# Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014 Jérôme Poisson (goffi@goffi.org)

# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.

# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU Affero General Public License for more details.

# You should have received a copy of the GNU Affero General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.


try:

    import gettext

    _ = gettext.translation('sat', 'i18n', fallback=True).ugettext
    _translators = {None: gettext.NullTranslations()}

    def languageSwitch(lang=None):
        if not lang in _translators:
            _translators[lang] = gettext.translation('sat', languages=[lang], fallback=True)
        _translators[lang].install(unicode=True)

except ImportError:

    print "WARNING: gettext support disabled"
    _ = lambda msg: msg # Libervia doesn't support gettext
    def languageSwitch(lang=None):
        pass


D_ = lambda msg: msg # used for deferred translations