[damned-lies] Link to current language team on homepage (Fixes #569819)

[Claude Paroz <claudep src gnome org>]

commit 43fe12748e2c9ab78a967dd4b358f7824d6239fa
Author: Claude Paroz <claude 2xlibre net>
Date:   Sat Dec 5 22:15:37 2009 +0100

    Link to current language team on homepage (Fixes #569819)

 common/views.py      |   11 ++++++++---
 languages/models.py  |   28 ++++++++++++++++++++++++++++
 templates/index.html |    7 +++++++
 3 files changed, 43 insertions(+), 3 deletions(-)
---
diff --git a/common/views.py b/common/views.py
index 8ef0c1f..71baaaf 100644
--- a/common/views.py
+++ b/common/views.py
@@ -28,18 +28,23 @@ from django.conf import settings
 from people.models import Person
 from teams.models import Role
 from people.forms import RegistrationForm
-
+from languages.models import Language
 
 def index(request):
+    """ Homepage view """
     translator_credits = _("translator-credits")
-    # FIXME Not sure the LANGUAGE_CODE test is useful
-    if request.LANGUAGE_CODE == 'en' or translator_credits == "translator-credits":
+    if translator_credits == "translator-credits":
         translator_credits = ''
     else:
         translator_credits = translator_credits.split('\n')
 
+    curlang = Language.get_language_from_ianacode(request.LANGUAGE_CODE)
+    if curlang.locale == 'en':
+        curlang = None
+
     context = {
         'pageSection': 'home',
+        'user_language': curlang,
         'translator_credits': translator_credits
     }
     return render_to_response('index.html', context, context_instance=RequestContext(request))
diff --git a/languages/models.py b/languages/models.py
index ecf60ed..1096802 100644
--- a/languages/models.py
+++ b/languages/models.py
@@ -15,12 +15,40 @@ class Language(models.Model):
     def __unicode__(self):
         return "%s (%s)" % (self.name, self.locale)
 
+    @classmethod
+    def get_language_from_ianacode(cls, ianacode):
+        """ Return a matching Language object corresponding to LANGUAGE_CODE (BCP47-formatted)
+            This is a sort of BCP47 to ISO639 conversion function """
+        iana_splitted = ianacode.split("-", 1)
+        iana_suffix = len(iana_splitted) > 1 and iana_splitted[1] or ""
+        iana_suffix = iana_suffix.replace('Latn','latin').replace('Cyrl','cyrillic')
+        lang_list = cls.objects.filter(locale__startswith=iana_splitted[0])
+        if len(lang_list) == 0:
+            return None
+        elif len(lang_list) > 1:
+            # Find the best language to return
+            best_lang = lang_list[0]
+            for lang in lang_list:
+                if lang.get_suffix():
+                    if iana_suffix.lower() == lang.get_suffix().lower():
+                        return lang
+                else:
+                    best_lang = lang
+            return best_lang
+        return lang_list[0]
+
     def get_name(self):
         if self.name != self.locale:
             return _(self.name)
         else:
             return self.locale
 
+    def get_suffix(self):
+        splitted = self.locale.replace('@','_').split('_')
+        if len(splitted) > 1:
+            return splitted[-1]
+        return None
+
     def get_plurals(self):
         # Translators: this concerns an unknown plural form
         return self.plurals or _("Unknown")
diff --git a/templates/index.html b/templates/index.html
index 61599db..f625323 100644
--- a/templates/index.html
+++ b/templates/index.html
@@ -13,6 +13,13 @@
 <h2><a href="{% url teams %}">{% trans "Teams" %}</a></h2>
 <p>{% trans "List of all GNOME Translation Teams, with full information such as primary contact (coordinator), web pages and mailing list information." %}
   {% trans "If there is no team for your language, you can easily <a href='http://live.gnome.org/TranslationProject/StartingATeam/'>start your own team</a>." %}
+{% if user_language %}
+  {% with user_language.get_team_url as team_url %}
+  {% with user_language.name as language_name %}
+  <br /><strong>{% blocktrans %}Go to the <a href="{{ team_url }}">{{ language_name }} team page</a> and help us to translate GNOME!{% endblocktrans %}</strong>
+  {% endwith %}
+  {% endwith %}
+{% endif %}
 </p>
 
 </td><td valign="top">