public function FieldsSettingsForm::validateForm in Diff 8

Form validation handler.

Parameters

array $form: An associative array containing the structure of the form.

\Drupal\Core\Form\FormStateInterface $form_state: The current state of the form.

Overrides FormBase::validateForm

File

src/Form/FieldsSettingsForm.php, line 395

Class

FieldsSettingsForm

Configure fields with their diff builder plugin settings.

Namespace

Drupal\diff\Form

Code

public function validateForm(array &$form, FormStateInterface $form_state) {
  $form_values = $form_state
    ->getValues();
  $plugin_settings = $form_state
    ->get('plugin_settings');
  $fields = $form_values['fields'];
  foreach ($fields as $field_key => $field_values) {

    // Validate only non-null plugins.
    if ($field_values['plugin']['type'] != 'hidden') {
      $settings = array();
      $key = NULL;

      // Form submitted without pressing update button on plugin settings form.
      if (isset($field_values['settings_edit_form']['settings'])) {
        $settings = $field_values['settings_edit_form']['settings'];
        $key = 1;
      }
      elseif (isset($plugin_settings[$field_key]['settings'])) {
        $settings = $plugin_settings[$field_key]['settings'];
        $key = 2;
      }
      if (!empty($settings)) {

        // Build a new Form State object and populate it with values.
        $state = new FormState();
        $state
          ->setValues($settings);
        $state
          ->set('fields', $field_key);
        $plugin = $this->diffBuilderManager
          ->createInstance($field_values['plugin']['type'], []);

        // Send the values to the plugins form validate handler.
        $plugin
          ->validateConfigurationForm($form, $state);

        // Assign the validation messages back to the big table.
        if ($key == 1) {
          $form_state
            ->setValue([
            'fields',
            $field_key,
            'settings_edit_form',
            'settings',
          ], $state
            ->getValues());
        }
        elseif ($key == 2) {
          $form_state
            ->set([
            'plugin_settings',
            $field_key,
            'settings',
          ], $state
            ->getValues());
        }
      }
    }
  }
}