Same name and namespace in other branches

1. 4.0.x src/Wizard/FormWizardBase.php \Drupal\ctools\Wizard\FormWizardBase::previous()

Form submit handler to step backwards in the wizard.

"Next" steps are handled by \Drupal\Core\Form\FormInterface::submitForm().

Parameters

array $form: Drupal form array.

\Drupal\Core\Form\FormStateInterface $form_state: The current form state of the wizard. This will not contain values from the current step since the previous button does not actually submit those values.

Overrides FormWizardInterface::previous

File

src/Wizard/FormWizardBase.php, line 329

Class

FormWizardBase

The base class for all form wizard.

Namespace

Drupal\ctools\Wizard

Code

public function previous(array &$form, FormStateInterface $form_state) {
  $cached_values = $form_state->getTemporaryValue('wizard');
  $prev_parameters = $this->getPreviousParameters($cached_values);
  // Redirect for non ajax forms.
  if (!$form_state->get('ajax')) {
    $form_state->setRedirect($this->getRouteName(), $prev_parameters);
  }
  else {
    // Switch step for ajax forms.
    if (!empty($prev_parameters['step'])) {
      $this->step = $prev_parameters['step'];
    }
  }
}