query optimization on Work

matijakolaric-com · Aug 5, 2018 · 6a3ca2a · 6a3ca2a
1 parent 0f6c49d
commit 6a3ca2a
Showing 1 changed file with 8 additions and 0 deletions.
diff --git a/music_publisher/admin.py b/music_publisher/admin.py
@@ -256,6 +256,14 @@ def duration(self, obj):
         'work_id', 'title', 'iswc', 'writer_last_names',
         'percentage_controlled', 'duration', 'isrc', 'album_cd', '_cwr')
 
+    def get_queryset(self, request):
+        qs = super().get_queryset(request)
+        qs = qs.prefetch_related('writerinwork_set')
+        qs = qs.prefetch_related('writers')
+        qs = qs.prefetch_related('firstrecording__album_cd')
+        return qs
+
+
     class HasISRCListFilter(admin.SimpleListFilter):
         title = 'Has ISWC'
         parameter_name = 'has_iswc'