function custom_search_form_alter in Custom Search 8

Same name and namespace in other branches

1. 6 custom_search.module \custom_search_form_alter()
2. 7 custom_search.module \custom_search_form_alter()

Implements hook_form_alter().

File

./custom_search.module, line 50

Bring customizations to the default search box.

Code

function custom_search_form_alter(&$form, FormStateInterface $form_state, $form_id) {
  $config = \Drupal::config('custom_search.settings.results');
  switch ($form_id) {
    case 'search_page_add_form':
    case 'search_page_edit_form':
      if ($form['plugin']['#value'] == 'node_search') {
        if ($form['id']['#default_value']) {

          // If it's an existing page, get existing settings.
          $config = $config
            ->get($form['id']['#default_value']);
        }
        else {

          // If we're creating a new page, set defaults.
          $types = node_type_get_names();
          foreach ($types as $type => $name) {
            $types[$type] = $type;
          }
          $enabled_languages = \Drupal::languageManager()
            ->getLanguages();
          $languages = [];
          foreach ($enabled_languages as $lid => $l) {
            $languages[$lid] = $lid;
          }
          $languages[Language::LANGCODE_NOT_SPECIFIED] = Language::LANGCODE_NOT_SPECIFIED;
          $languages[Language::LANGCODE_NOT_APPLICABLE] = Language::LANGCODE_NOT_APPLICABLE;
          $config = [
            'search' => TRUE,
            'advanced' => [
              'visibility' => TRUE,
              'collapsible' => TRUE,
              'collapsed' => TRUE,
              'criteria' => [
                'or' => 'or',
                'phrase' => 'phrase',
                'negative' => 'negative',
              ],
              'types' => $types,
              'languages' => $languages,
            ],
            'info' => [
              'type' => 'type',
              'user' => 'user',
              'date' => 'date',
              'comment' => 'comment',
            ],
            'filter' => [
              'position' => 'disabled',
              'label' => t('Filter the results'),
              'any' => t('- Any -'),
            ],
          ];
        }
        $form['search_form'] = [
          '#type' => 'details',
          '#title' => t('Search form'),
          '#open' => TRUE,
        ];
        $form['search_form']['custom_search_search'] = [
          '#type' => 'checkbox',
          '#title' => t('Display basic search'),
          '#default_value' => $config['search'],
        ];
        $form['search_form']['custom_search_advanced_search'] = [
          '#type' => 'checkbox',
          '#title' => t('Display advanced search'),
          '#default_value' => $config['advanced']['visibility'],
        ];
        $form['search_form']['advanced'] = [
          '#type' => 'details',
          '#title' => t('Advanced search'),
          '#states' => [
            'visible' => [
              ':input[name="custom_search_advanced_search"]' => [
                'checked' => TRUE,
              ],
            ],
          ],
        ];
        $form['search_form']['advanced']['custom_search_collapsible'] = [
          '#type' => 'checkbox',
          '#title' => t('Collapsible'),
          '#default_value' => $config['advanced']['collapsible'],
        ];
        $form['search_form']['advanced']['custom_search_collapsed'] = [
          '#type' => 'checkbox',
          '#title' => t('Collapsed'),
          '#default_value' => $config['advanced']['collapsed'],
          '#states' => [
            'visible' => [
              ':input[name="custom_search_collapsible"]' => [
                'checked' => TRUE,
              ],
            ],
          ],
        ];
        $form['search_form']['advanced']['custom_search_criteria'] = [
          '#type' => 'checkboxes',
          '#title' => t('Criteria'),
          '#options' => [
            'or' => t('Or'),
            'phrase' => t('Phrase'),
            'negative' => t('Negative'),
          ],
          '#default_value' => $config['advanced']['criteria'],
          '#description' => t('Select the criteria to display on the advanced search form.'),
        ];
        $options = node_type_get_names();
        $form['search_form']['advanced']['custom_search_types'] = [
          '#type' => 'checkboxes',
          '#title' => t('Content types'),
          '#options' => $options,
          '#description' => t('Select the content types to display on the advanced search form.'),
          '#default_value' => $config['advanced']['types'],
        ];
        $languages = \Drupal::languageManager()
          ->getLanguages();
        $languages_options = [];
        foreach ($languages as $id => $language) {
          $languages_options[$id] = $language
            ->getName();
        }
        $languages_options[Language::LANGCODE_NOT_SPECIFIED] = t('- Not specified -');
        $languages_options[Language::LANGCODE_NOT_APPLICABLE] = t('- Not applicable -');
        $form['search_form']['advanced']['custom_search_languages'] = [
          '#type' => 'checkboxes',
          '#title' => t('Languages'),
          '#description' => t('Select the languages to display on the advanced search form.'),
          '#default_value' => $config['advanced']['languages'],
          '#options' => $languages_options,
        ];
        $form['custom_search_info'] = [
          '#type' => 'checkboxes',
          '#title' => t('Results information'),
          '#options' => [
            'type' => t('Content type'),
            'user' => t('Author'),
            'date' => t('Date'),
          ],
          '#default_value' => $config['info'],
          '#description' => t('Select data to display below each result.'),
        ];
        if (\Drupal::moduleHandler()
          ->moduleExists('comment')) {
          $form['info']['#options']['comment'] = t('Comments');
        }
        $form['filter'] = [
          '#type' => 'details',
          '#title' => t('Filter'),
          '#description' => t('Add links to filter the results by content type.'),
        ];
        $form['filter']['custom_search_filter_position'] = [
          '#type' => 'select',
          '#title' => t('Position'),
          '#options' => [
            'disabled' => t('Disabled'),
            'above' => t('Above results'),
            'below' => t('Below results'),
          ],
          '#default_value' => $config['filter']['position'],
        ];
        $form['filter']['custom_search_filter_label'] = [
          '#type' => 'textfield',
          '#title' => t('Label text'),
          '#default_value' => $config['filter']['label'],
          '#description' => t('Enter the label text for the list. The default value is "Filter the results".'),
          '#states' => [
            'invisible' => [
              ':input[name="custom_search_filter_position"]' => [
                'value' => 'disabled',
              ],
            ],
          ],
        ];
        $form['filter']['custom_search_filter_any'] = [
          '#type' => 'textfield',
          '#title' => t('- Any content type - text'),
          '#default_value' => $config['filter']['any'],
          '#required' => TRUE,
          '#description' => t('Enter the text for "any content type" choice. The default value is "- Any -".'),
          '#states' => [
            'invisible' => [
              ':input[name="custom_search_filter_position"]' => [
                'value' => 'disabled',
              ],
            ],
          ],
        ];
        $form['actions']['submit']['#submit'][] = 'custom_search_search_page_submit';
      }
      break;
    case 'search_form':
      $config = \Drupal::config('custom_search.settings.results')
        ->getRawData();
      $page_config = FALSE;
      $current_path = \Drupal::request()
        ->getPathInfo();
      $path = substr($current_path, strpos($current_path, 'search/') + 7);

      // Search for the config of this page.
      foreach ($config as $c) {
        if (isset($c['path']) && $c['path'] == $path) {
          $page_config = $c;
          break;
        }
      }
      if ($page_config) {
        if (isset($form['advanced'])) {

          // Analyse query so we can reselect options.
          $path = urldecode(\Drupal::request()->server
            ->get('QUERY_STRING'));
          $args = explode('&', $path);
          $reselect = [];
          foreach ($args as $arg) {
            $arg_parts = explode('=', $arg);
            if (isset($arg_parts[1])) {
              $arg_value = explode(':', $arg_parts[1]);
              if (isset($arg_value[1])) {
                $reselect[$arg_value[0]][] = $arg_value[1];
              }
            }
          }

          // Criteria.
          $nb_criteria = 3;
          if (!in_array('or', $page_config['advanced']['criteria'], TRUE)) {
            $form['advanced']['keywords-fieldset']['keywords']['or']['#type'] = 'hidden';
            $nb_criteria--;
          }
          if (!in_array('phrase', $page_config['advanced']['criteria'], TRUE)) {
            $form['advanced']['keywords-fieldset']['keywords']['phrase']['#type'] = 'hidden';
            $nb_criteria--;
          }
          if (!in_array('negative', $page_config['advanced']['criteria'], TRUE)) {
            $form['advanced']['keywords-fieldset']['keywords']['negative']['#type'] = 'hidden';
            $nb_criteria--;
          }
          if (!$nb_criteria) {
            $form['advanced']['keywords-fieldset']['#type'] = 'hidden';
          }

          // Content types.
          foreach ($page_config['advanced']['types'] as $name => $type) {
            if (!$type) {
              unset($form['advanced']['types-fieldset']['type']['#options'][$name]);
            }
          }
          if (isset($form['advanced']['types-fieldset']) && !count($form['advanced']['types-fieldset']['type']['#options'])) {
            unset($form['advanced']['types-fieldset']);
          }
          elseif (isset($reselect['type'])) {

            // Reselect content types.
            $form['advanced']['types-fieldset']['type']['#default_value'] = $reselect['type'];
          }

          // Languages.
          foreach ($page_config['advanced']['languages'] as $name => $language) {
            if (!$language) {
              unset($form['advanced']['lang-fieldset']['language']['#options'][$name]);
            }
          }
          if (isset($form['advanced']['lang-fieldset']) && !count($form['advanced']['lang-fieldset']['language']['#options'])) {
            unset($form['advanced']['lang-fieldset']);
          }
          elseif (isset($reselect['language'])) {

            // Reselect languages.
            $form['advanced']['lang-fieldset']['language']['#default_value'] = $reselect['language'];
          }
        }

        // Search blocks.
        if (!$page_config['search']) {
          if (isset($form['basic']['keys'])) {

            // If basic search is hidden, import terms into advanced search.
            $form['advanced']['keywords-fieldset']['keywords']['or']['#default_value'] = $form['basic']['keys']['#default_value'];
          }
          $nb_results = \Drupal::state()
            ->get('custom_search.nb_results');
          if (!isset($nb_results) || isset($nb_results) && !$nb_results) {
            $form['advanced']['#open'] = TRUE;
          }
          $form['basic']['#prefix'] = '<div class="hidden">';
          $form['basic']['#suffix'] = '</div>';
        }
        if (!$page_config['advanced']['collapsible']) {
          $form['advanced']['#type'] = 'fieldset';
        }
        elseif (!$page_config['advanced']['collapsed']) {
          $form['advanced']['#open'] = TRUE;
        }
        if (!$page_config['advanced']['visibility']) {
          $form['advanced']['#attributes']['class'][] = 'hidden';
        }
      }
      break;
  }
}