From 8432877cdfb4ef824f6fa0f4fec4274298ec4484 Mon Sep 17 00:00:00 2001
From: ulferts <jens.ulferts@googlemail.com>
Date: Wed, 5 Feb 2020 10:41:30 +0100
Subject: [PATCH] class method where intended

---
 app/models/attachment.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/app/models/attachment.rb b/app/models/attachment.rb
index d75648ca2f..ccea9a1cb2 100644
--- a/app/models/attachment.rb
+++ b/app/models/attachment.rb
@@ -229,7 +229,7 @@ class Attachment < ActiveRecord::Base
     end
   end
 
-  def tsv_extracted_containers
+  def self.tsv_extracted_containers
     Attachment
       .select(:container_type)
       .distinct