Provides an interface for form building and processing. Hierarchy interface \Drupal\Core\Form\
public FormBuilderInterface::buildForm($form_id, FormStateInterface
public FormBuilderInterface::submitForm($form_arg, FormStateInterface
public FormBuilderInterface::getForm($form_arg)
public FormBuilderInterface::processForm($form_id, &$form
public FormBuilderInterface::retrieveForm($form_id, FormStateInterface
public FormBuilderInterface::rebuildForm($form_id, FormStateInterface
public FormBuilderInterface::getFormId($form_arg, FormStateInterface
Request key for AJAX forms that submit to the form's original route. This constant is distinct from a "drupal_ajax" value for
public FormBuilderInterface::prepareForm($form_id, &$form
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