small refacto with hidden_by_expired? method

app/models/dossier.rb

@@ -687,7 +687,7 @@ class Dossier < ApplicationRecord
       en_construction_close_to_expiration_notice_sent_at: nil,
       termine_close_to_expiration_notice_sent_at: nil)
 
-    if hidden_by_reason == 'expired'
+    if hidden_by_expired?
       update(hidden_by_expired_at: nil, hidden_by_reason: nil)
       restore(author)
     end
@@ -782,6 +782,10 @@ class Dossier < ApplicationRecord
     !procedure.brouillon? && !brouillon?
   end
 
+  def hidden_by_expired?
+    hidden_by_expired_at.present?
+  end
+
   def hidden_by_user?
     hidden_by_user_at.present?
   end

app/views/instructeurs/dossiers/_header_actions.html.haml

@@ -8,7 +8,7 @@
               dossier_is_followed: current_instructeur&.follow?(dossier),
               close_to_expiration: dossier.close_to_expiration?,
               hidden_by_administration: dossier.hidden_by_administration?,
-              hidden_by_expired: dossier.hidden_by_reason == 'expired',
+              hidden_by_expired: dossier.hidden_by_expired?,
               has_pending_correction: dossier.pending_correction?,
               has_blocking_pending_correction: dossier.procedure.feature_enabled?(:blocking_pending_correction) && dossier.pending_correction?,
               turbo: true,

app/views/instructeurs/procedures/show.html.haml

@@ -173,7 +173,7 @@
                                   dossier_is_followed: @followed_dossiers_id.include?(p.dossier_id),
                                   close_to_expiration: @statut == 'expirant',
                                   hidden_by_administration: @statut == 'supprimes_recemment',
-                                  hidden_by_expired: p.hidden_by_reason == 'expired',
+                                  hidden_by_expired: p.hidden_by_expired?,
                                   sva_svr: @procedure.sva_svr_enabled?,
                                   has_blocking_pending_correction: @procedure.feature_enabled?(:blocking_pending_correction) && p.pending_correction?,
                                   turbo: false,

app/views/users/dossiers/_dossiers_list.html.haml

@@ -16,7 +16,7 @@
           %p.fr-icon--sm.fr-icon-user-line
             = demandeur_dossier(dossier)
 
-          - if dossier.hidden_by_reason == 'expired'
+          - if dossier.hidden_by_expired?
             %p.fr-icon--sm.fr-icon-delete-line
               = t('views.users.dossiers.dossiers_list.deleted_by_automatic', date: l(dossier.hidden_by_expired_at.to_date))
           - elsif dossier.hidden_by_user?