From ab48e1850c5a797d55515d0794f6efe8687a01d8 Mon Sep 17 00:00:00 2001
From: Étienne Loks <etienne.loks@iggdrasil.net>
Date: Mon, 2 Aug 2021 17:19:16 +0200
Subject: Preventive file: copy planned, add default cost - tests - fixtures

---
 archaeological_files/models.py | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'archaeological_files/models.py')

diff --git a/archaeological_files/models.py b/archaeological_files/models.py
index 3237f594c..51273a17e 100644
--- a/archaeological_files/models.py
+++ b/archaeological_files/models.py
@@ -227,6 +227,12 @@ class EquipmentServiceCost(models.Model):
             lbl += " - " + str(DCT_ES_UNITS[self.unit])
         return lbl
 
+    def natural_key(self):
+        return (self.slug,)
+
+    def history_compress(self):
+        return self.slug
+
 
 class FileType(GeneralType):
     class Meta:
-- 
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