public function SearchApiFulltext::validateExposed in Search API 8

Validate the exposed handler form

Overrides HandlerBase::validateExposed

File

src/Plugin/views/filter/SearchApiFulltext.php, line 310

Class

SearchApiFulltext

Defines a filter for adding a fulltext search to the view.

Namespace

Drupal\search_api\Plugin\views\filter

Code

public function validateExposed(&$form, FormStateInterface $form_state) {

  // Only validate exposed input.
  if (empty($this->options['exposed']) || empty($this->options['expose']['identifier'])) {
    return;
  }

  // Store searched fields.
  $searched_fields_identifier = $this->options['id'] . '_searched_fields';
  if (!empty($this->options['expose']['searched_fields_id'])) {
    $searched_fields_identifier = $this->options['expose']['searched_fields_id'];
  }
  $this->searchedFields = $form_state
    ->getValue($searched_fields_identifier, []);
  $identifier = $this->options['expose']['identifier'];
  $input =& $form_state
    ->getValue($identifier, '');
  if ($this->options['is_grouped'] && isset($this->options['group_info']['group_items'][$input])) {
    $this->operator = $this->options['group_info']['group_items'][$input]['operator'];
    $input =& $this->options['group_info']['group_items'][$input]['value'];
  }

  // Under some circumstances, input will be an array containing the string
  // value. Not sure why, but just deal with that.
  while (is_array($input)) {
    $input = $input ? reset($input) : '';
  }
  if (trim($input) === '') {

    // No input was given by the user. If the filter was set to "required" and
    // there is a query (not the case when an exposed filter block is
    // displayed stand-alone), abort it.
    if (!empty($this->options['expose']['required']) && $this
      ->getQuery()) {
      $this
        ->getQuery()
        ->abort();
    }

    // If the input is empty, there is nothing to validate: return early.
    return;
  }

  // Only continue if there is a minimum word length set.
  if ($this->options['min_length'] < 2) {
    return;
  }
  $words = preg_split('/\\s+/', $input);
  foreach ($words as $i => $word) {
    if (mb_strlen($word) < $this->options['min_length']) {
      unset($words[$i]);
    }
  }
  if (!$words) {
    $vars['@count'] = $this->options['min_length'];
    $msg = $this
      ->t('You must include at least one positive keyword with @count characters or more.', $vars);
    $form_state
      ->setErrorByName($identifier, $msg);
  }
  $input = implode(' ', $words);
}