client instances may be used as translation engines.

any backend translator may be passed as constructor
argument or via setTranslator() method.  by default,
templating.translationService is used.

use this engine to translate client messages.

Author: Alexander Smishlajev

roundup/cgi/client.py

@@ -1,4 +1,4 @@
-# $Id: client.py,v 1.178 2004-05-27 21:51:43 richard Exp $
+# $Id: client.py,v 1.179 2004-06-15 09:19:49 a1s Exp $
 
 """WWW request handler (also used in the stand-alone server).
 """
@@ -10,7 +10,6 @@
 
 
 from roundup import roundupdb, date, hyperdb, password
-from roundup.i18n import _
 from roundup.cgi import templating, cgitb
 from roundup.cgi.actions import *
 from roundup.cgi.exceptions import *
@@ -103,7 +102,7 @@ class Client:
     # columns, sort, sortdir, filter, group, groupdir, search_text,
     # pagesize, startwith
 
-    def __init__(self, instance, request, env, form=None):
+    def __init__(self, instance, request, env, form=None, translator=None):
         # re-seed the random number generator
         random.seed()
         if __debug__:
@@ -112,6 +111,7 @@ def __init__(self, instance, request, env, form=None):
         self.instance = instance
         self.request = request
         self.env = env
+        self.setTranslator(translator)
         self.mailer = Mailer(instance.config)
 
         # save off the path
@@ -154,6 +154,22 @@ def __init__(self, instance, request, env, form=None):
         # parse cookies (used in charset and session lookups)
         self.cookie = Cookie.SimpleCookie(self.env.get('HTTP_COOKIE', ''))
 
+    def setTranslator(self, translator=None):
+        """Replace the translation engine
+
+        'translator'
+           is i18n module or one of gettext translation classes.
+           It must have attributes 'gettext' and 'ngettext',
+           serving as translation functions.
+
+           If omitted, use templating.translationService.
+        """
+        if translator is None:
+            translator = templating.translationService
+        self.translator = translator
+        self._ = self.gettext = translator.gettext
+        self.ngettext = translator.ngettext
+
     def main(self):
         ''' Wrap the real main in a try/finally so we always close off the db.
         '''
@@ -257,7 +273,7 @@ def inner_main(self):
             # pass through
             raise
         except FormError, e:
-            self.error_message.append(_('Form Error: ') + str(e))
+            self.error_message.append(self._('Form Error: ') + str(e))
             self.write_html(self.renderContext())
         except:
             # everything else
@@ -307,7 +323,7 @@ def determine_charset(self):
             try:
                 codecs.lookup(charset)
             except LookupError:
-                self.error_message.append(_('Unrecognized charset: %r')
+                self.error_message.append(self._('Unrecognized charset: %r')
                     % charset)
             else:
                 self.charset = charset.lower()