Remove Invalid
The remove_invalid plugin automatically deletes and
deassigns a new assigned file if it was invalid. If there was a previous file
attached, it will be assigned back.
plugin :remove_invalid# without previous file photo.image #=> nil photo.image = file # validation fails, assignment is reverted photo.valid? #=> false photo.image #=> nil # with previous file photo.image #=> #<Shrine::UploadedFile id="foo" ...> photo.image = file # validation fails, assignment is reverted photo.valid? #=> false photo.image #=> #<Shrine::UploadedFile id="foo" ...>