From ef259c361d87b01a5dcedb2a4b5a10baa97b2fed Mon Sep 17 00:00:00 2001
From: Paul Chavard <git@paul.chavard.net>
Date: Wed, 8 Jul 2020 14:49:50 +0200
Subject: [PATCH] Fix exception when purge_later is called before save

---
 app/models/type_de_champ.rb | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/app/models/type_de_champ.rb b/app/models/type_de_champ.rb
index 9896eccfb..27ac435fd 100644
--- a/app/models/type_de_champ.rb
+++ b/app/models/type_de_champ.rb
@@ -85,6 +85,10 @@ class TypeDeChamp < ApplicationRecord
   before_save :remove_drop_down_list, if: -> { type_champ_changed? }
   before_save :remove_repetition, if: -> { type_champ_changed? }
 
+  after_save if: -> { @remove_piece_justificative_template } do
+    piece_justificative_template.purge_later
+  end
+
   def valid?(context = nil)
     super
     if dynamic_type.present?
@@ -293,7 +297,7 @@ class TypeDeChamp < ApplicationRecord
 
   def remove_piece_justificative_template
     if !piece_justificative? && piece_justificative_template.attached?
-      piece_justificative_template.purge_later
+      @remove_piece_justificative_template = true
     end
   end