Store newly-uploaded files on save rather than assignment

1 files changed, 19 insertions, 0 deletions

diff --git a/activestorage/lib/active_storage/attached/changes/delete_many.rb b/activestorage/lib/active_storage/attached/changes/delete_many.rb
new file mode 100644
index 0000000000..5c7fe385de
--- /dev/null
+++ b/activestorage/lib/active_storage/attached/changes/delete_many.rb
@@ -0,0 +1,19 @@
+# frozen_string_literal: true
+
+module ActiveStorage
+  class Attached::Changes::DeleteMany #:nodoc:
+    attr_reader :name, :record
+
+    def initialize(name, record)
+      @name, @record = name, record
+    end
+
+    def attachments
+      ActiveStorage::Attachment.none
+    end
+
+    def save
+      record.public_send("#{name}_attachments=", [])
+    end
+  end
+end