From f1ca242b2f6349adc34b84efc472eb9805afb2be Mon Sep 17 00:00:00 2001
From: =?utf8?q?Fr=C3=A9d=C3=A9ric=20P=C3=A9ters?= <fpeters@0d.be>
Date: Thu, 16 Jul 2020 14:46:37 +0200
Subject: [PATCH] adapt statistics to tracks with unset language

---
 nonstop/templates/nonstop/statistics.html |  4 +++-
 nonstop/views.py                          | 13 +++++++++++--
 2 files changed, 14 insertions(+), 3 deletions(-)

diff --git a/nonstop/templates/nonstop/statistics.html b/nonstop/templates/nonstop/statistics.html
index 6bffc6e..a1cb9b2 100644
--- a/nonstop/templates/nonstop/statistics.html
+++ b/nonstop/templates/nonstop/statistics.html
@@ -30,9 +30,11 @@
   <li>CFWB: {{zone.stats.cfwb}} ({{zone.stats.cfwb_percentage}})
           {% if zone.stats.quota_cfwb %}✅{% else %}❌{% endif %}
   </li>
-  <li>French-speaking: {{zone.stats.french}} ({{zone.stats.french_percentage}}, % hors instrus)
+  <li>French-speaking: {{zone.stats.french}} ({{zone.stats.french_percentage}},
+          % hors instrus et où la langue est connue)
           {% if zone.stats.quota_french %}✅{% else %}❌{% endif %}
   </li>
+  <li>{% trans "Unset language:" %} {{zone.stats.unset_language}} ({{zone.stats.unset_language_percentage}})</li>
   </ul></li>
 </ul>
 
diff --git a/nonstop/views.py b/nonstop/views.py
index 18a909d..f0eee55 100644
--- a/nonstop/views.py
+++ b/nonstop/views.py
@@ -151,11 +151,20 @@ class ZoneStats(object):
     def cfwb_percentage(self):
         return self.percentage(cfwb=True)
 
+    def unset_language(self):
+        return self.count(language='')
+
+    def unset_language_percentage(self):
+        return self.percentage(language='')
+
     def french(self):
         return self.count(language='fr')
 
+    def unset_or_na_language(self):
+        return self.qs.filter(Q(language='') | Q(language='na')).count()
+
     def french_percentage(self):
-        considered_tracks = self.count() - self.instru()
+        considered_tracks = self.count() - self.unset_or_na_language()
         if considered_tracks == 0:
             return '-'
         return '%.2f%%' % (100. * self.french() / considered_tracks)
@@ -163,7 +172,7 @@ class ZoneStats(object):
     def quota_french(self):
         # obligation de diffuser annuellement au moins 30% d'œuvres musicales de
         # langue française
-        considered_tracks = self.count() - self.instru()
+        considered_tracks = self.count() - self.unset_or_na_language()
         if considered_tracks == 0:
             return True
         return (100. * self.french() / considered_tracks) > 30.
-- 
2.39.2