BookSettingsForm.php 2.42 KB
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<?php

/**
 * @file
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 * Contains \Drupal\book\Form\BookSettingsForm.
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 */

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namespace Drupal\book\Form;
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use Drupal\Core\Form\ConfigFormBase;
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/**
 * Configure book settings for this site.
 */
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class BookSettingsForm extends ConfigFormBase {
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  /**
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   * {@inheritdoc}
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   */
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  public function getFormId() {
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    return 'book_admin_settings';
  }

  /**
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   * {@inheritdoc}
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   */
  public function buildForm(array $form, array &$form_state) {
    $types = node_type_get_names();
    $config = $this->configFactory->get('book.settings');
    $form['book_allowed_types'] = array(
      '#type' => 'checkboxes',
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      '#title' => $this->t('Content types allowed in book outlines'),
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      '#default_value' => $config->get('allowed_types'),
      '#options' => $types,
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      '#description' => $this->t('Users with the %outline-perm permission can add all content types.', array('%outline-perm' => $this->t('Administer book outlines'))),
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      '#required' => TRUE,
    );
    $form['book_child_type'] = array(
      '#type' => 'radios',
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      '#title' => $this->t('Content type for child pages'),
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      '#default_value' => $config->get('child_type'),
      '#options' => $types,
      '#required' => TRUE,
    );
    $form['array_filter'] = array('#type' => 'value', '#value' => TRUE);

    return parent::buildForm($form, $form_state);
  }

  /**
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   * {@inheritdoc}
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   */
  public function validateForm(array &$form, array &$form_state) {
    $child_type = $form_state['values']['book_child_type'];
    if (empty($form_state['values']['book_allowed_types'][$child_type])) {
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      form_set_error('book_child_type', $this->t('The content type for the %add-child link must be one of those selected as an allowed book outline type.', array('%add-child' => $this->t('Add child page'))));
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    }

    parent::validateForm($form, $form_state);
  }

  /**
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   * {@inheritdoc}
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   */
  public function submitForm(array &$form, array &$form_state) {
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    $allowed_types = array_filter($form_state['values']['book_allowed_types']);
    // We need to save the allowed types in an array ordered by machine_name so
    // that we can save them in the correct order if node type changes.
    // @see book_node_type_update().
    sort($allowed_types);
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    $this->configFactory->get('book.settings')
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    // Remove unchecked types.
      ->set('allowed_types', $allowed_types)
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      ->set('child_type', $form_state['values']['book_child_type'])
      ->save();

    parent::submitForm($form, $form_state);
  }

}