Accessor: adjust TranslatedPropertyGetter to use unicode2str

partially revert a17bb910 (py2/py3: Make Products code compatible
with both python2 and python3., 2022-04-13) so that
TranslatedPropertyGetter keeps returning utf-8 encoded str (bytes) on
python2 and returns text only on python3.

This regression caused displaying categories to raise unicode error or
to silently not display the labels for.

product/CMFCategory/tests/testCMFCategory.py

+# coding:utf-8
 ##############################################################################
 #
 # Copyright (c) 2004 Nexedi SARL and Contributors. All Rights Reserved.
@@ -26,6 +27,7 @@
 #
 ##############################################################################
 
+import mock
 from collections import deque
 import unittest
 
@@ -756,6 +758,60 @@ class TestCMFCategory(ERP5TypeTestCase):
     whitespace_number = self.portal.portal_preferences.getPreferredWhitespaceNumberForChildItemIndentation()
     self.assertEqual(NBSP_UTF8 * whitespace_number + 'The Sub Title', sub_cat.getIndentedTitle())
 
+  def test_getCategoryChildTranslatedXItemList(self):
+    base_cat = self.getCategoryTool().newContent(portal_type='Base Category')
+    cat = base_cat.newContent(
+      portal_type='Category', id='the_id', title='The Title')
+    cat.newContent(
+      portal_type='Category', id='the_sub_id', title='The Sub Title')
+
+    default_gettext = self.portal.Localizer.erp5_content.gettext
+    def gettext(message, **kw):
+      if message == 'The Sub Title':
+        return u'The Süb Tïtle'
+      assert message != u'The Süb Tïtle'
+      return default_gettext(message, **kw)
+
+    with mock.patch.object(
+        self.portal.Localizer.erp5_content.__class__,
+        'gettext',
+      side_effect=gettext), \
+      mock.patch.object(
+        self.portal.portal_preferences.__class__,
+        'getPreferredWhitespaceNumberForChildItemIndentation',
+        return_value=2):
+
+      self.assertEqual(
+        base_cat.getCategoryChildIndentedTitleItemList(),
+          [['', ''],
+            ['The Title', 'the_id'],
+            ['\xc2\xa0\xc2\xa0The Sub Title', 'the_id/the_sub_id']],
+      )
+      self.assertEqual(
+        base_cat.getCategoryChildTranslatedIndentedTitleItemList(),
+          [['', ''],
+            ['The Title', 'the_id'],
+            ['\xc2\xa0\xc2\xa0The S\xc3\xbcb T\xc3\xaftle', 'the_id/the_sub_id']],
+      )
+      self.assertEqual(
+        base_cat.getCategoryChildTranslatedCompactTitleItemList(),
+          [['', ''],
+            ['The Title', 'the_id'],
+            ['The S\xc3\xbcb T\xc3\xaftle', 'the_id/the_sub_id']],
+      )
+      self.assertEqual(
+        base_cat.getCategoryChildTranslatedLogicalPathItemList(),
+          [['', ''],
+            ['The Title', 'the_id'],
+            ['The Title/The S\xc3\xbcb T\xc3\xaftle', 'the_id/the_sub_id']],
+      )
+      self.assertEqual(
+        base_cat.getCategoryChildTranslatedCompactLogicalPathItemList(),
+          [['', ''],
+            ['The Title', 'the_id'],
+            ['The Title/The S\xc3\xbcb T\xc3\xaftle', 'the_id/the_sub_id']],
+      )
+
   def test_CategoryChildTitleItemListFilterNodeFilterLeave(self):
     base_cat = self.getCategoryTool().newContent(portal_type='Base Category')
     base_cat.newContent(

product/ERP5Type/Accessor/Translation.py

@@ -26,6 +26,7 @@
 #
 ##############################################################################
 
+from six import ensure_text
 from zLOG import LOG
 from Products.ERP5Type.PsycoWrapper import psyco
 from Acquisition import aq_base
@@ -33,6 +34,7 @@ from Acquisition import aq_base
 from Products.ERP5Type.Accessor.Base import func_code, ATTRIBUTE_PREFIX, evaluateTales, Getter as BaseGetter, Method
 from Products.ERP5Type.Accessor import Accessor, AcquiredProperty
 from Products.ERP5Type.Accessor.TypeDefinition import type_definition
+from Products.ERP5Type.Utils import unicode2str
 
 
 TRANSLATION_DOMAIN_CONTENT_TRANSLATION = 'content_translation'
@@ -85,8 +87,8 @@ class TranslatedPropertyGetter(BaseGetter):
       localizer = instance.getPortalObject().Localizer
       message_catalog = getattr(localizer, domain, None)
       if message_catalog is not None:
-        return message_catalog.gettext(value, lang=self._language)
-      else:
+        return unicode2str(
+          message_catalog.gettext(ensure_text(value), lang=self._language))
       return value
 
   psyco.bind(__call__)