From 6a3ca2a79a2831191c62ea1c8fdff0c0f03149bb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Matija=20Kolari=C4=87?= <matija@jako.sexy>
Date: Sun, 5 Aug 2018 21:07:22 +0200
Subject: [PATCH] query optimization on Work

---
 music_publisher/admin.py | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/music_publisher/admin.py b/music_publisher/admin.py
index 331c1d03..1cc64aab 100644
--- 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'