From 4c249852897b9a5adedb9054800e7a146c35c9c6 Mon Sep 17 00:00:00 2001
From: Fabien Meghazi <fme@openerp.com>
Date: Fri, 9 May 2014 14:24:00 +0200
Subject: [PATCH] [ADD] alternate hreflang links in head for search engines

cf: https://support.google.com/webmasters/answer/189077?hl=en

bzr revid: fme@openerp.com-20140509122400-49sl631mwipx1039
---
 addons/website/views/website_templates.xml | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/addons/website/views/website_templates.xml b/addons/website/views/website_templates.xml
index 8d46a09f2fb..0b99d7a892c 100644
--- a/addons/website/views/website_templates.xml
+++ b/addons/website/views/website_templates.xml
@@ -83,6 +83,12 @@
                 and main_object.website_meta_keywords or website_meta_keywords"/>
             <title><t t-esc="title"/></title>
 
+            <t t-set="languages" t-value="website.get_languages()"/>
+            <t t-foreach="languages" t-as="lg">
+                <t t-set="force_lang" t-value="lg[0] if lg[0] != website.default_lang_code else None"/>
+                <link rel="alternate" t-att-href="url_for(request.httprequest.path + '?' + keep_query(), lang=force_lang)" t-att-hreflang="lg[0].replace('_', '-').lower()" />
+            </t>
+
             <t t-call-assets="website.assets_frontend"/>
 
             <t t-raw="head or ''" name='layout_head'/>
@@ -171,10 +177,9 @@
                                         their performance.
                                     </p>
                                 </div>
-                                <t t-set="languages" t-value="website.get_languages()"/>
                                 <ul class="list-inline js_language_selector mt16" t-if="(len(languages) &gt; 1 or editable)">
                                     <li t-foreach="languages" t-as="lg">
-                                        <a t-att-href="url_for('', lang=lg[0]) + '?' + keep_query()"
+                                        <a t-att-href="url_for(request.httprequest.path + '?' + keep_query(), lang=lg[0])"
                                            t-att-data-default-lang="editable and 'true' if lg[0] == website.default_lang_code else None">
                                             <t t-esc="lg[1].split('/').pop()"/>
                                         </a>