In OctoberCMS, form behavior is a controller modifier used for easily adding form functionality to a back-end page.
Form behavior is a controller modifier used for easily adding form functionality to a back-end page. The behavior provides three pages called Create, Update and Preview. The Preview page is a read-only version of the Update page. When you use the form behavior you don't need to define the create(), update() and preview() actions in the controller - the behavior does it for you. However you should provide the corresponding view files.