public function NameAutocomplete::getMatches in Name Field 8

Get matches for the autocompletion of name components.

Parameters

\Drupal\Core\Field\FieldDefinitionInterface $field: The field definition.

string $target: The name field component.

string $string: The string to match for the name field component.

Return value

array An array containing the matching values.

File

src/NameAutocomplete.php, line 56

Class

NameAutocomplete

Defines a helper class to get name field autocompletion results.

Namespace

Drupal\name

Code

public function getMatches(FieldDefinitionInterface $field, $target, $string) {
  $matches = [];
  $limit = 10;
  if (empty($string)) {
    return $matches;
  }
  $settings = $field
    ->getSettings();
  foreach ($this->allComponents as $component) {
    if (!isset($settings['autocomplete_source'][$component])) {
      $settings['autocomplete_source'][$component] = [];
    }
    $settings['autocomplete_source'][$component] = array_filter($settings['autocomplete_source'][$component]);
  }
  $action = [];
  switch ($target) {
    case 'name':
      $action['components'] = $this
        ->mapAssoc([
        'given',
        'middle',
        'family',
      ]);
      break;
    case 'name-all':
      $action['components'] = $this
        ->mapAssoc($this->allComponents);
      break;
    case 'title':
    case 'given':
    case 'middle':
    case 'family':
    case 'credentials':
    case 'generational':
      $action['components'] = [
        $target => $target,
      ];
      break;
    default:
      $action['components'] = [];
      foreach (explode('-', $target) as $component) {
        if (in_array($component, _name_component_keys())) {
          $action['components'][$component] = $component;
        }
      }
      break;
  }
  $action['source'] = [
    'title' => [],
    'generational' => [],
  ];
  $action['separater'] = '';
  foreach ($action['components'] as $component) {
    if (empty($settings['autocomplete_source'][$component])) {
      unset($action['components'][$component]);
    }
    else {
      $sep = (string) $settings['autocomplete_separator'][$component];
      if (strlen($sep) === 0) {
        $sep = ' ';
      }
      for ($i = 0; $i < strlen($sep); $i++) {
        if (strpos($action['separater'], $sep[$i]) === FALSE) {
          $action['separater'] .= $sep[$i];
        }
      }
      $found_source = FALSE;
      foreach ((array) $settings['autocomplete_source'][$component] as $src) {
        if ($src == 'data' && !$field) {
          continue;
        }
        if ($src == 'title' || $src == 'generational') {
          if (!$field || $component != $src) {
            continue;
          }
        }
        $found_source = TRUE;
        $action['source'][$src][] = $component;
      }
      if (!$found_source) {
        unset($action['components'][$component]);
      }
    }
  }

  // @todo: preg_split fails with a notice if $action['separater'] == ' '.
  @($pieces = preg_split('/[' . preg_quote($action['separater']) . ']+/', $string));

  // We should have nice clean parameters to query.
  if (!empty($pieces) && !empty($action['components'])) {
    $test_string = mb_strtolower(array_pop($pieces));
    $base_string = mb_substr($string, 0, mb_strlen($string) - mb_strlen($test_string));
    if ($limit > 0 && count($action['source']['title'])) {
      $options = $this->optionsProvider
        ->getOptions($field, 'title');
      foreach ($options as $key => $option) {
        if (strpos(mb_strtolower($key), $test_string) === 0 || strpos(mb_strtolower($option), $test_string) === 0) {
          $matches[$base_string . $key] = $key;
          $limit--;
        }
      }
    }
    if ($limit > 0 && count($action['source']['generational'])) {
      $options = $this->optionsProvider
        ->getOptions($field, 'generational');
      foreach ($options as $key => $option) {
        if (strpos(mb_strtolower($key), $test_string) === 0 || strpos(mb_strtolower($option), $test_string) === 0) {
          $matches[$base_string . $key] = $key;
          $limit--;
        }
      }
    }
  }
  return $matches;
}