public function SuggestionFactory::createFromSuggestedKeys in Search API Autocomplete 8

Creates a suggestion based on the suggested keywords.

Parameters

string $suggested_keys: The suggested keywords.

int|null $results_count: (optional) The estimated number of results.

Return value

\Drupal\search_api_autocomplete\Suggestion\SuggestionInterface An autocomplete suggestion.

File

src/Suggestion/SuggestionFactory.php, line 42

Class

SuggestionFactory

Provides factory methods for simpler creation of autocomplete suggestions.

Namespace

Drupal\search_api_autocomplete\Suggestion

Code

public function createFromSuggestedKeys($suggested_keys, $results_count = NULL) {
  $suggestion = new Suggestion($suggested_keys);
  $lowercase_input = mb_strtolower($this->userInput);
  $lowercase_keys = mb_strtolower($suggested_keys);
  $start_position = mb_strpos($lowercase_keys, $lowercase_input);
  if ($start_position === FALSE) {
    $suggestion
      ->setLabel($suggested_keys);
  }
  else {
    if ($start_position) {
      $prefix = mb_substr($suggested_keys, 0, $start_position);
      $suggestion
        ->setSuggestionPrefix($prefix);
    }
    $input_length = mb_strlen($this->userInput);
    $end_position = $start_position + $input_length;
    if ($end_position < mb_strlen($suggested_keys)) {
      $suffix = mb_substr($suggested_keys, $end_position);
      $suggestion
        ->setSuggestionSuffix($suffix);
    }
    $suggestion
      ->setUserInput(mb_substr($suggested_keys, $start_position, $input_length));
  }
  if ($results_count !== NULL) {
    $suggestion
      ->setResultsCount($results_count);
  }
  return $suggestion;
}