protected function Search::getResults in Google Site Search 8

Get query result.

Parameters

int $n: Number of items.

int $offset: Offset of items (0-indexed).

string $search_type: One of:

• NULL (regular search).
• "image".

Return value

object|null Decoded response from Google, or NULL on error.

1 call to Search::getResults()

Search::findResults in src/Plugin/Search/Search.php

Queries to find search results, and sets status messages.

File

src/Plugin/Search/Search.php, line 388

Class

Search

Handles search using Google Search Engine.

Namespace

Drupal\gss\Plugin\Search

Code

protected function getResults($n = 1, $offset = 0, $search_type = NULL) {
  $language = $this->languageManager
    ->getCurrentLanguage()
    ->getId();
  $language_default = $this->languageManager
    ->getDefaultLanguage()
    ->getId();
  $any_language = LanguageInterface::LANGCODE_NOT_SPECIFIED;
  $api_key = $this->keyRepository
    ->getKey($this->configuration['api_key']);
  $query = $this
    ->getParameters();
  $search_engine_id = NULL;
  if (!empty($this->configuration['search_engine_id_' . $language])) {

    // Language specific search engine id.
    $search_engine_id = $this->configuration['search_engine_id_' . $language];
  }
  elseif (!empty($this->configuration['search_engine_id_' . $language_default])) {

    // Default language search engine id.
    $search_engine_id = $this->configuration['search_engine_id_' . $language_default];
    $language = $language_default;
  }
  elseif (!empty($this->configuration['search_engine_id_' . $any_language])) {

    // Any language search engine id.
    $search_engine_id = $this->configuration['search_engine_id_' . $any_language];
  }

  // Exit, no search engine id defined.
  if (empty($search_engine_id)) {
    return NULL;
  }

  // make sure we actually have a base url
  $base_url = $this->configuration['base_url'];
  if (empty($base_url)) {
    $default_config = $this
      ->defaultConfiguration();
    $base_url = $default_config['base_url'];
  }
  $keywords = $this
    ->getKeywords();
  if (isset($query['label'])) {
    $keywords .= '+more:' . $query['label'];
  }
  $options = array(
    'query' => array(
      'q' => $keywords,
      'key' => !is_null($api_key) ? $api_key
        ->getKeyValue() : NULL,
      'cx' => $search_engine_id,
      // hl: "interface language", also used to weight results.
      'hl' => $language,
      // lr: "language restrict", supposed to limit results to only the set
      // language, defined with a "lang_" prefix.
      'lr' => 'lang_' . $language,
      'start' => $offset + 1,
      'num' => $n,
    ),
  );
  if (@$query['type'] == 'image') {
    $options['query']['searchType'] = 'image';
  }
  if (!is_null($api_key)) {
    try {
      $response = $this->httpClient
        ->get($base_url, $options);
      $json = $response
        ->getBody();
    } catch (\Exception $e) {
      \Drupal::logger('gss')
        ->error($e
        ->getMessage());
      return NULL;
    }
  }
  else {
    $json = $this
      ->generateSampleItems($base_url, $options);
  }
  return json_decode($json);
}