From 25eb870f2170c9e3ec930363017800712ada8a9f Mon Sep 17 00:00:00 2001
From: Marcela Ribeiro de Oliveira <mro15@inf.ufpr.br>
Date: Tue, 5 Dec 2017 11:02:27 -0200
Subject: [PATCH] update default attachment when delete attachment
---
.../v1/learning_objects/attachment_controller.rb | 10 +++++++++-
...4_update_learning_object_attachments_foreign_key.rb | 6 ++++++
2 files changed, 15 insertions(+), 1 deletion(-)
create mode 100644 db/migrate/20171205120824_update_learning_object_attachments_foreign_key.rb
diff --git a/app/controllers/v1/learning_objects/attachment_controller.rb b/app/controllers/v1/learning_objects/attachment_controller.rb
index 7bdee9b4..a0bfe1ac 100644
--- a/app/controllers/v1/learning_objects/attachment_controller.rb
+++ b/app/controllers/v1/learning_objects/attachment_controller.rb
@@ -36,7 +36,15 @@ class V1::LearningObjects::AttachmentController < ApplicationController
return render status: :not_found if @learning_object.nil? || @attachment.nil?
DeleteBitstreamWorker.perform_async(@attachment.id)
- @attachment.destroy
+ if @learning_object.attachment == @attachment
+ @learning_object.attachment = nil
+ @learning_object.save
+ @attachment.destroy
+ @learning_object.reload
+ @learning_object.default_attachment
+ else
+ @attachment.destroy
+ end
render status: :ok
end
diff --git a/db/migrate/20171205120824_update_learning_object_attachments_foreign_key.rb b/db/migrate/20171205120824_update_learning_object_attachments_foreign_key.rb
new file mode 100644
index 00000000..f9f6597e
--- /dev/null
+++ b/db/migrate/20171205120824_update_learning_object_attachments_foreign_key.rb
@@ -0,0 +1,6 @@
+class UpdateLearningObjectAttachmentsForeignKey < ActiveRecord::Migration[5.0]
+ def change
+ remove_foreign_key :learning_object_attachments, :learning_object_attachments
+ add_foreign_key :learning_object_attachments, :learning_object_attachments, column: :attachment_id, on_delete: :cascade
+ end
+end
--
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