[FIX] website.layout hreflangs

- First line is not correct due to url_for() refactoring's leftover
- href's should be full urls with domain name
- Use short language for hreflang if possible

addons/website/models/website.py

@@ -233,7 +233,31 @@ class website(osv.osv):
         return [(lg.code, lg.name) for lg in website.language_ids]
 
     def get_languages(self, cr, uid, ids, context=None):
-        return self._get_languages(cr, uid, ids[0])
+        return self._get_languages(cr, uid, ids[0], context=context)
+
+    def get_alternate_languages(self, cr, uid, ids, req=None, context=None):
+        langs = []
+        if req is None:
+            req = request.httprequest
+        default = self.get_current_website(cr, uid, context=context).default_lang_code
+        uri = req.path
+        if req.query_string:
+            uri += '?' + req.query_string
+        shorts = []
+        for code, name in self.get_languages(cr, uid, ids, context=context):
+            lg_path = ('/' + code) if code != default else ''
+            lg = code.split('_')
+            shorts.append(lg[0])
+            lang = {
+                'hreflang': ('-'.join(lg)).lower(),
+                'short': lg[0],
+                'href': req.url_root[0:-1] + lg_path + uri,
+            }
+            langs.append(lang)
+        for lang in langs:
+            if shorts.count(lang['short']) == 1:
+                lang['hreflang'] = lang['short']
+        return langs
 
     def get_current_website(self, cr, uid, context=None):
         # TODO: Select website, currently hard coded

addons/website/views/website_templates.xml

@@ -83,10 +83,9 @@
             <title><t t-esc="title"/></title>
 
             <t t-set="languages" t-value="website.get_languages() if website else None"/>
-            <t t-if="request and request.website_multilang">
-                <t t-foreach="languages" t-as="lg">
-                    <t t-set="force_lang" t-value="lg[0] if website and 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-if="request and request.website_multilang and website">
+                <t t-foreach="website.get_alternate_languages(request.httprequest)" t-as="lang">
+                    <link rel="alternate" t-att-hreflang="lang['hreflang']" t-att-href="lang['href']"/>
                 </t>
             </t>