[Mpuls-commits] r2932 - base/trunk/mpulsweb/lib

[scm-commit@wald.intevation.org]

Author: torsten
Date: 2010-06-09 12:02:13 +0200 (Wed, 09 Jun 2010)
New Revision: 2932

Added:
   base/trunk/mpulsweb/lib/translation.py
Log:
New. Copied from pylons.i18n.translations to allow configurable location of language files


Added: base/trunk/mpulsweb/lib/translation.py
===================================================================
--- base/trunk/mpulsweb/lib/translation.py	2010-06-09 09:03:20 UTC (rev 2931)
+++ base/trunk/mpulsweb/lib/translation.py	2010-06-09 10:02:13 UTC (rev 2932)
@@ -0,0 +1,49 @@
+import os
+from gettext import NullTranslations, translation
+
+import pylons
+
+# Copied from pylons.i18n.translation. Adapted code to allow otional locations
+# of language files
+
+def _get_translator(lang, **kwargs):
+    """Utility method to get a valid translator object from a language
+    name"""
+    if not lang:
+        return NullTranslations()
+    if 'pylons_config' in kwargs:
+        conf = kwargs.pop('pylons_config')
+    else:
+        conf = pylons.config.current_conf()
+    # XXX: root_path is deprecated
+    try:
+        rootdir = conf['pylons.paths']['root']
+    except KeyError:
+        rootdir = conf['pylons.paths'].get('root_path')
+    if conf['pylons.paths'].has_key('i18n'):
+        localedir = conf['pylons.paths'].get('i18n')
+    else:
+        localedir = os.path.join(rootdir, 'i18n')
+    if not isinstance(lang, list):
+        lang = [lang]
+    try:
+        translator = translation(conf['pylons.package'], localedir,
+                                 languages=lang, **kwargs)
+    except IOError, ioe:
+        raise LanguageError('IOError: %s' % ioe)
+    translator.pylons_lang = lang
+    return translator
+
+
+def set_lang(lang, **kwargs):
+    """Set the current language used for translations.
+
+    ``lang`` should be a string or a list of strings. If a list of
+    strings, the first language is set as the main and the subsequent
+    languages are added as fallbacks.
+    """
+    translator = _get_translator(lang, **kwargs)
+    environ = pylons.request.environ
+    environ['pylons.pylons'].translator = translator
+    if 'paste.registry' in environ:
+        environ['paste.registry'].replace(pylons.translator, translator)