service and serializer

app/serializers/commentaire_serializer.rb

@@ -2,13 +2,9 @@ class CommentaireSerializer < ActiveModel::Serializer
   attributes :email,
     :body,
     :created_at,
-    :attachment
+    :piece_jointe_attachments
 
   def created_at
     object.created_at&.in_time_zone('UTC')
   end
-
-  def attachment
-    object.file_url
-  end
 end

app/services/pieces_justificatives_service.rb

@@ -161,7 +161,7 @@ class PiecesJustificativesService
 
   def pjs_for_commentaires(dossiers)
     commentaire_id_dossier_id = Commentaire
-      .joins(:piece_jointe_attachment)
+      .joins(:piece_jointe_attachments)
       .where(dossier: dossiers)
       .pluck(:id, :dossier_id)
       .to_h