FormSubmitterInterface
interface FormSubmitterInterface (View source)
Provides an interface for processing form submissions.
Methods
Handles the submitted form, executing callbacks and processing responses.
Executes custom submission handlers for a given form.
Redirects the user to a URL after a form has been processed.
Details
null|Response
doSubmitForm(array $form, FormStateInterface $form_state)
Handles the submitted form, executing callbacks and processing responses.
executeSubmitHandlers($form, FormStateInterface $form_state)
Executes custom submission handlers for a given form.
Button-specific handlers are checked first. If none exist, the function falls back to form-level handlers.
RedirectResponse|null
redirectForm(FormStateInterface $form_state)
Redirects the user to a URL after a form has been processed.
After a form is submitted and processed, normally the user should be redirected to a new destination page. This function figures out what that destination should be, based on the $form_state and the 'destination' query string in the request URL, and redirects the user there.
The result of \Drupal\Core\Form|FormStateInterface::getRedirect() determines where to redirect the user. See the possible return values listed there. If the result is FALSE, then the user will not be redirected.
Here is an example of how to set up a form to redirect to the path 'user':