1 files changed, 29 insertions, 0 deletions
diff --git a/lib/active_storage/attached/one.rb b/lib/active_storage/attached/one.rb
new file mode 100644
index 0000000000..d08d265992
--- /dev/null
+++ b/lib/active_storage/attached/one.rb
@@ -0,0 +1,29 @@
+class ActiveStorage::Attached::One < ActiveStorage::Attached
+  delegate_missing_to :attachment
+
+  def attachment
+    @attachment ||= ActiveStorage::Attachment.find_by(record_gid: record.to_gid.to_s, name: name)
+  end
+
+  def attach(attachable)
+    @attachment = ActiveStorage::Attachment.create!(record_gid: record.to_gid.to_s, name: name, blob: create_blob_from(attachable))
+  end
+
+  def attached?
+    attachment.present?
+  end
+
+  def purge
+    if attached?
+      attachment.purge
+      @attachment = nil
+    end
+  end
+
+  def purge_later
+    if attached?
+      attachment.purge_later
+      @attachment = nil
+    end
+  end
+end