Add a monkey patch to Localizer in order to have smooth migration from...

Add a monkey patch to Localizer in order to have smooth migration from Translation Service to Localizer.


git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@5317 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5Type/ZopePatch.py

@@ -41,6 +41,7 @@ from Products.ERP5Type.patches import FSZSQLMethod
 from Products.ERP5Type.patches import ActionInformation
 from Products.ERP5Type.patches import ActionProviderBase
 from Products.ERP5Type.patches import CookieCrumbler
+from Products.ERP5Type.patches import Localizer
 
 # These symbols are required for backward compatibility
 from Products.ERP5Type.patches.PropertyManager import ERP5PropertyManager

product/ERP5Type/patches/Localizer.py

+##############################################################################
+#
+# Copyright (c) 2001 Zope Corporation and Contributors. All Rights Reserved.
+# Copyright (c) 2002-2006 Nexedi SARL and Contributors. All Rights Reserved.
+#
+# This software is subject to the provisions of the Zope Public License,
+# Version 2.0 (ZPL).  A copy of the ZPL should accompany this distribution.
+# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
+# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
+# FOR A PARTICULAR PURPOSE
+#
+##############################################################################
+
+# Template() is a new method of python 2.4, that's why we have the string.py
+#   file in ERP5Form.
+try:
+  from string import Template
+except ImportError:
+  from Products.ERP5Type.patches.string import Template
+
+
+
+class LocalizerTranslationService:
+  def translate( self, domain, msgid
+               , mapping=None, context=None, target_language=None, default=None
+               , *args, **kw):
+    """
+      This translate() method use Localizer and support catalog aliases.
+    """
+    # This dict define the alias between old Translation Service catalog id
+    #   and new Localizer Message Catalog.
+    message_catalog_aliases = { "ui"     : "erp5_ui"
+                              , "content": "erp5_content"
+                              }
+
+    # Get Localizer
+    localizer = context.getPortalObject().Localizer
+    # Get the Localizer catalog id
+    catalog_id = None
+    if domain in message_catalog_aliases.keys():
+      catalog_id = message_catalog_aliases[domain]
+    else:
+      catalog_id = domain
+    if catalog_id not in localizer.objectIds():
+      # No catalog found: return the untranslated string
+      return msgid
+    catalog_obj = localizer[catalog_id]
+    # Adapt Translation Service default value to the Localizer one
+    if default == None: default = []
+    # Call the Message Catalog gettext method
+    translated_str = catalog_obj.gettext( message = msgid
+                                        , lang    = target_language
+                                        , default = default
+                                        )
+    if type(mapping) is type({}):
+      return Template(translated_str).substitute(mapping)
+    return translated_str
+
+
+
+# Use the patched translate() method
+from Products.PageTemplates import GlobalTranslationService
+
+def setGlobalTranslationService(service):
+  GlobalTranslationService.translationService = LocalizerTranslationService()
+
+GlobalTranslationService.setGlobalTranslationService = setGlobalTranslationService