Require open3 before using it

diff --git a/app/models/trace.rb b/app/models/trace.rb
index 49e4a041b8512bc1519d0dd0870e70ea681c4177..5496bec45977f71e9d0d83aad5a3198b71f50ac0 100644 (file)
--- a/app/models/trace.rb
+++ b/app/models/trace.rb
@@ -26,6 +26,8 @@
 #
 
 class Trace < ApplicationRecord
+  require "open3"
+
   self.table_name = "gpx_files"
 
   belongs_to :user, :counter_cache => true