Filter courses by language

courses/views.py

@@ -68,7 +68,9 @@ class CourseViewSet(viewsets.ModelViewSet):
             #        Q(is_public=True, ) | Q(groups__in=self.request.user.groups.all(), status='published')
             #    )
             #)
-            query = Q(status='published')
+            from django.utils.translation import get_language
+            current_language = get_language()
+            query = Q(status='published', lang__contains=[current_language])
 
             if (CourseProfessor.objects.filter(user=self.request.user, role='coordinator').exists()):
                 query.add(Q(