From 16336ffeae7fb145b376774d3e094dbcb786f3c7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?C=C3=A9dric=20Krier?= <ced@b2ck.com>
Date: Sat, 5 Nov 2016 19:59:51 +0100
Subject: [PATCH] Support derivative translations in reports

TranslateFactory must search throw all parents languages.

issue6012
review30751003
---
 trytond/report/report.py | 28 ++++++++++++++++------------
 1 file changed, 16 insertions(+), 12 deletions(-)

diff --git a/trytond/report/report.py b/trytond/report/report.py
index ec7a358ac4..8ce19bcf1f 100644
--- a/trytond/report/report.py
+++ b/trytond/report/report.py
@@ -19,6 +19,7 @@ from trytond.transaction import Transaction
 from trytond.url import URLMixin
 from trytond.rpc import RPC
 from trytond.exceptions import UserError
+from trytond.tools import get_parent_language
 
 MIMETYPES = {
     'odt': 'application/vnd.oasis.opendocument.text',
@@ -72,18 +73,21 @@ class TranslateFactory:
 
     def __call__(self, text):
         if self.language not in self.cache:
-            self.cache[self.language] = {}
-            translations = self.translation.search([
-                ('lang', '=', self.language),
-                ('type', '=', 'report'),
-                ('name', '=', self.report_name),
-                ('value', '!=', ''),
-                ('value', '!=', None),
-                ('fuzzy', '=', False),
-                ('res_id', '=', -1),
-                ])
-            for translation in translations:
-                self.cache[self.language][translation.src] = translation.value
+            cache = self.cache[self.language] = {}
+            code = self.language
+            while code:
+                translations = self.translation.search([
+                    ('lang', '=', code),
+                    ('type', '=', 'report'),
+                    ('name', '=', self.report_name),
+                    ('value', '!=', ''),
+                    ('value', '!=', None),
+                    ('fuzzy', '=', False),
+                    ('res_id', '=', -1),
+                    ])
+                for translation in translations:
+                    cache.setdefault(translation.src, translation.value)
+                code = get_parent_language(code)
         return self.cache[self.language].get(text, text)
 
     def set_language(self, language):