Drupal 8 8.0.2
|__construct ($old, $new)|
|Public Member Functions inherited from CommandInterface|
|Protected Attributes inherited from CommandInterface|
AJAX command for updating the value of a hidden form_build_id input element on a form. It requires the form passed in to have keys for both the old build ID in #build_id_old and the new build ID in #build_id.
The primary use case for this Ajax command is to serve a new build ID to a form served from the cache to an anonymous user, preventing one anonymous user from accessing the form state of another anonymous user on Ajax enabled forms.
This command is implemented by Drupal.AjaxCommands.prototype.update_build_id() defined in misc/ajax.js. O
Constructs a UpdateBuildIdCommand object.
|string||$old||The old build_id.|
|string||$new||The new build_id.|