public function EntityAutocompleteMatcher::getMatches in Drupal 8

Same name and namespace in other branches

9 core/lib/Drupal/Core/Entity/EntityAutocompleteMatcher.php \Drupal\Core\Entity\EntityAutocompleteMatcher::getMatches()

Gets matched labels based on a given search string.

Parameters

string $target_type: The ID of the target entity type.

string $selection_handler: The plugin ID of the entity reference selection handler.

array $selection_settings: An array of settings that will be passed to the selection handler.

string $string: (optional) The label of the entity to query by.

Return value

array An array of matched entity labels, in the format required by the AJAX autocomplete API (e.g. array('value' => $value, 'label' => $label)).

Throws

\Symfony\Component\HttpKernel\Exception\AccessDeniedHttpException Thrown when the current user doesn't have access to the specified entity.

Overrides EntityAutocompleteMatcherInterface::getMatches

File

core/lib/Drupal/Core/Entity/EntityAutocompleteMatcher.php, line 34

Class

EntityAutocompleteMatcher: Matcher class to get autocompletion results for entity reference.

Namespace

Drupal\Core\Entity

Code

public function getMatches($target_type, $selection_handler, $selection_settings, $string = '') {
  $matches = [];
  $options = $selection_settings + [
    'target_type' => $target_type,
    'handler' => $selection_handler,
  ];
  $handler = $this->selectionManager
    ->getInstance($options);
  if (isset($string)) {

    // Get an array of matching entities.
    $match_operator = !empty($selection_settings['match_operator']) ? $selection_settings['match_operator'] : 'CONTAINS';
    $match_limit = isset($selection_settings['match_limit']) ? (int) $selection_settings['match_limit'] : 10;
    $entity_labels = $handler
      ->getReferenceableEntities($string, $match_operator, $match_limit);

    // Loop through the entities and convert them into autocomplete output.
    foreach ($entity_labels as $values) {
      foreach ($values as $entity_id => $label) {
        $key = "{$label} ({$entity_id})";

        // Strip things like starting/trailing white spaces, line breaks and
        // tags.
        $key = preg_replace('/\\s\\s+/', ' ', str_replace("\n", '', trim(Html::decodeEntities(strip_tags($key)))));

        // Names containing commas or quotes must be wrapped in quotes.
        $key = Tags::encode($key);
        $matches[] = [
          'value' => $key,
          'label' => $label,
        ];
      }
    }
  }
  return $matches;
}

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