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class NodeSearch in Zircon Profile 8.0

Same name and namespace in other branches
  1. 8 core/modules/node/src/Plugin/Search/NodeSearch.php \Drupal\node\Plugin\Search\NodeSearch

Handles searching for node entities using the Search module index.

Plugin annotation


@SearchPlugin(
  id = "node_search",
  title = @Translation("Content")
)

Hierarchy

Expanded class hierarchy of NodeSearch

File

core/modules/node/src/Plugin/Search/NodeSearch.php, line 39
Contains \Drupal\node\Plugin\Search\NodeSearch.

Namespace

Drupal\node\Plugin\Search
View source 
class NodeSearch extends ConfigurableSearchPluginBase implements AccessibleInterface, SearchIndexingInterface {

  /**
   * A database connection object.
   *
   * @var \Drupal\Core\Database\Connection
   */
  protected $database;

  /**
   * An entity manager object.
   *
   * @var \Drupal\Core\Entity\EntityManagerInterface
   */
  protected $entityManager;

  /**
   * A module manager object.
   *
   * @var \Drupal\Core\Extension\ModuleHandlerInterface
   */
  protected $moduleHandler;

  /**
   * A config object for 'search.settings'.
   *
   * @var \Drupal\Core\Config\Config
   */
  protected $searchSettings;

  /**
   * The language manager.
   *
   * @var \Drupal\Core\Language\LanguageManagerInterface
   */
  protected $languageManager;

  /**
   * The Drupal account to use for checking for access to advanced search.
   *
   * @var \Drupal\Core\Session\AccountInterface
   */
  protected $account;

  /**
   * The Renderer service to format the username and node.
   *
   * @var \Drupal\Core\Render\RendererInterface
   */
  protected $renderer;

  /**
   * An array of additional rankings from hook_ranking().
   *
   * @var array
   */
  protected $rankings;

  /**
   * The list of options and info for advanced search filters.
   *
   * Each entry in the array has the option as the key and for its value, an
   * array that determines how the value is matched in the database query. The
   * possible keys in that array are:
   * - column: (required) Name of the database column to match against.
   * - join: (optional) Information on a table to join. By default the data is
   *   matched against the {node_field_data} table.
   * - operator: (optional) OR or AND, defaults to OR.
   *
   * @var array
   */
  protected $advanced = array(
    'type' => array(
      'column' => 'n.type',
    ),
    'language' => array(
      'column' => 'i.langcode',
    ),
    'author' => array(
      'column' => 'n.uid',
    ),
    'term' => array(
      'column' => 'ti.tid',
      'join' => array(
        'table' => 'taxonomy_index',
        'alias' => 'ti',
        'condition' => 'n.nid = ti.nid',
      ),
    ),
  );

  /**
   * A constant for setting and checking the query string.
   */
  const ADVANCED_FORM = 'advanced-form';

  /**
   * {@inheritdoc}
   */
  public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) {
    return new static($configuration, $plugin_id, $plugin_definition, $container
      ->get('database'), $container
      ->get('entity.manager'), $container
      ->get('module_handler'), $container
      ->get('config.factory')
      ->get('search.settings'), $container
      ->get('language_manager'), $container
      ->get('renderer'), $container
      ->get('current_user'));
  }

  /**
   * Constructs a \Drupal\node\Plugin\Search\NodeSearch object.
   *
   * @param array $configuration
   *   A configuration array containing information about the plugin instance.
   * @param string $plugin_id
   *   The plugin_id for the plugin instance.
   * @param mixed $plugin_definition
   *   The plugin implementation definition.
   * @param \Drupal\Core\Database\Connection $database
   *   A database connection object.
   * @param \Drupal\Core\Entity\EntityManagerInterface $entity_manager
   *   An entity manager object.
   * @param \Drupal\Core\Extension\ModuleHandlerInterface $module_handler
   *   A module manager object.
   * @param \Drupal\Core\Config\Config $search_settings
   *   A config object for 'search.settings'.
   * @param \Drupal\Core\Language\LanguageManagerInterface $language_manager
   *   The language manager.
   * @param \Drupal\Core\Session\AccountInterface $account
   *   The $account object to use for checking for access to advanced search.
   */
  public function __construct(array $configuration, $plugin_id, $plugin_definition, Connection $database, EntityManagerInterface $entity_manager, ModuleHandlerInterface $module_handler, Config $search_settings, LanguageManagerInterface $language_manager, RendererInterface $renderer, AccountInterface $account = NULL) {
    $this->database = $database;
    $this->entityManager = $entity_manager;
    $this->moduleHandler = $module_handler;
    $this->searchSettings = $search_settings;
    $this->languageManager = $language_manager;
    $this->renderer = $renderer;
    $this->account = $account;
    parent::__construct($configuration, $plugin_id, $plugin_definition);
    $this
      ->addCacheTags([
      'node_list',
    ]);
  }

  /**
   * {@inheritdoc}
   */
  public function access($operation = 'view', AccountInterface $account = NULL, $return_as_object = FALSE) {
    $result = AccessResult::allowedIfHasPermission($account, 'access content');
    return $return_as_object ? $result : $result
      ->isAllowed();
  }

  /**
   * {@inheritdoc}
   */
  public function isSearchExecutable() {

    // Node search is executable if we have keywords or an advanced parameter.
    // At least, we should parse out the parameters and see if there are any
    // keyword matches in that case, rather than just printing out the
    // "Please enter keywords" message.
    return !empty($this->keywords) || isset($this->searchParameters['f']) && count($this->searchParameters['f']);
  }

  /**
   * {@inheritdoc}
   */
  public function getType() {
    return $this
      ->getPluginId();
  }

  /**
   * {@inheritdoc}
   */
  public function execute() {
    if ($this
      ->isSearchExecutable()) {
      $results = $this
        ->findResults();
      if ($results) {
        return $this
          ->prepareResults($results);
      }
    }
    return array();
  }

  /**
   * Queries to find search results, and sets status messages.
   *
   * This method can assume that $this->isSearchExecutable() has already been
   * checked and returned TRUE.
   *
   * @return \Drupal\Core\Database\StatementInterface|null
   *   Results from search query execute() method, or NULL if the search
   *   failed.
   */
  protected function findResults() {
    $keys = $this->keywords;

    // Build matching conditions.
    $query = $this->database
      ->select('search_index', 'i', array(
      'target' => 'replica',
    ))
      ->extend('Drupal\\search\\SearchQuery')
      ->extend('Drupal\\Core\\Database\\Query\\PagerSelectExtender');
    $query
      ->join('node_field_data', 'n', 'n.nid = i.sid');
    $query
      ->condition('n.status', 1)
      ->addTag('node_access')
      ->searchExpression($keys, $this
      ->getPluginId());

    // Handle advanced search filters in the f query string.
    // \Drupal::request()->query->get('f') is an array that looks like this in
    // the URL: ?f[]=type:page&f[]=term:27&f[]=term:13&f[]=langcode:en
    // So $parameters['f'] looks like:
    // array('type:page', 'term:27', 'term:13', 'langcode:en');
    // We need to parse this out into query conditions, some of which go into
    // the keywords string, and some of which are separate conditions.
    $parameters = $this
      ->getParameters();
    if (!empty($parameters['f']) && is_array($parameters['f'])) {
      $filters = array();

      // Match any query value that is an expected option and a value
      // separated by ':' like 'term:27'.
      $pattern = '/^(' . implode('|', array_keys($this->advanced)) . '):([^ ]*)/i';
      foreach ($parameters['f'] as $item) {
        if (preg_match($pattern, $item, $m)) {

          // Use the matched value as the array key to eliminate duplicates.
          $filters[$m[1]][$m[2]] = $m[2];
        }
      }

      // Now turn these into query conditions. This assumes that everything in
      // $filters is a known type of advanced search.
      foreach ($filters as $option => $matched) {
        $info = $this->advanced[$option];

        // Insert additional conditions. By default, all use the OR operator.
        $operator = empty($info['operator']) ? 'OR' : $info['operator'];
        $where = new Condition($operator);
        foreach ($matched as $value) {
          $where
            ->condition($info['column'], $value);
        }
        $query
          ->condition($where);
        if (!empty($info['join'])) {
          $query
            ->join($info['join']['table'], $info['join']['alias'], $info['join']['condition']);
        }
      }
    }

    // Add the ranking expressions.
    $this
      ->addNodeRankings($query);

    // Run the query.
    $find = $query
      ->fields('i', array(
      'langcode',
    ))
      ->groupBy('i.langcode')
      ->limit(10)
      ->execute();

    // Check query status and set messages if needed.
    $status = $query
      ->getStatus();
    if ($status & SearchQuery::EXPRESSIONS_IGNORED) {
      drupal_set_message($this
        ->t('Your search used too many AND/OR expressions. Only the first @count terms were included in this search.', array(
        '@count' => $this->searchSettings
          ->get('and_or_limit'),
      )), 'warning');
    }
    if ($status & SearchQuery::LOWER_CASE_OR) {
      drupal_set_message($this
        ->t('Search for either of the two terms with uppercase <strong>OR</strong>. For example, <strong>cats OR dogs</strong>.'), 'warning');
    }
    if ($status & SearchQuery::NO_POSITIVE_KEYWORDS) {
      drupal_set_message($this
        ->formatPlural($this->searchSettings
        ->get('index.minimum_word_size'), 'You must include at least one keyword to match in the content, and punctuation is ignored.', 'You must include at least one keyword to match in the content. Keywords must be at least @count characters, and punctuation is ignored.'), 'warning');
    }
    return $find;
  }

  /**
   * Prepares search results for rendering.
   *
   * @param \Drupal\Core\Database\StatementInterface $found
   *   Results found from a successful search query execute() method.
   *
   * @return array
   *   Array of search result item render arrays (empty array if no results).
   */
  protected function prepareResults(StatementInterface $found) {
    $results = array();
    $node_storage = $this->entityManager
      ->getStorage('node');
    $node_render = $this->entityManager
      ->getViewBuilder('node');
    $keys = $this->keywords;
    foreach ($found as $item) {

      // Render the node.

      /** @var \Drupal\node\NodeInterface $node */
      $node = $node_storage
        ->load($item->sid)
        ->getTranslation($item->langcode);
      $build = $node_render
        ->view($node, 'search_result', $item->langcode);

      /** @var \Drupal\node\NodeTypeInterface $type*/
      $type = $this->entityManager
        ->getStorage('node_type')
        ->load($node
        ->bundle());
      unset($build['#theme']);
      $build['#pre_render'][] = array(
        $this,
        'removeSubmittedInfo',
      );

      // Fetch comments for snippet.
      $rendered = $this->renderer
        ->renderPlain($build);
      $this
        ->addCacheableDependency(CacheableMetadata::createFromRenderArray($build));
      $rendered .= ' ' . $this->moduleHandler
        ->invoke('comment', 'node_update_index', [
        $node,
      ]);
      $extra = $this->moduleHandler
        ->invokeAll('node_search_result', [
        $node,
      ]);
      $language = $this->languageManager
        ->getLanguage($item->langcode);
      $username = array(
        '#theme' => 'username',
        '#account' => $node
          ->getOwner(),
      );
      $result = array(
        'link' => $node
          ->url('canonical', array(
          'absolute' => TRUE,
          'language' => $language,
        )),
        'type' => $type
          ->label(),
        'title' => $node
          ->label(),
        'node' => $node,
        'extra' => $extra,
        'score' => $item->calculated_score,
        'snippet' => search_excerpt($keys, $rendered, $item->langcode),
        'langcode' => $node
          ->language()
          ->getId(),
      );
      $this
        ->addCacheableDependency($node);

      // We have to separately add the node owner's cache tags because search
      // module doesn't use the rendering system, it does its own rendering
      // without taking cacheability metadata into account. So we have to do it
      // explicitly here.
      $this
        ->addCacheableDependency($node
        ->getOwner());
      if ($type
        ->displaySubmitted()) {
        $result += array(
          'user' => $this->renderer
            ->renderPlain($username),
          'date' => $node
            ->getChangedTime(),
        );
      }
      $results[] = $result;
    }
    return $results;
  }

  /**
   * Removes the submitted by information from the build array.
   *
   * This information is being removed from the rendered node that is used to
   * build the search result snippet. It just doesn't make sense to have it
   * displayed in the snippet.
   *
   * @param array $build
   *   The build array.
   *
   * @return array
   *   The modified build array.
   */
  public function removeSubmittedInfo(array $build) {
    unset($build['created']);
    unset($build['uid']);
    return $build;
  }

  /**
   * Adds the configured rankings to the search query.
   *
   * @param $query
   *   A query object that has been extended with the Search DB Extender.
   */
  protected function addNodeRankings(SelectExtender $query) {
    if ($ranking = $this
      ->getRankings()) {
      $tables =& $query
        ->getTables();
      foreach ($ranking as $rank => $values) {
        if (isset($this->configuration['rankings'][$rank]) && !empty($this->configuration['rankings'][$rank])) {
          $node_rank = $this->configuration['rankings'][$rank];

          // If the table defined in the ranking isn't already joined, then add it.
          if (isset($values['join']) && !isset($tables[$values['join']['alias']])) {
            $query
              ->addJoin($values['join']['type'], $values['join']['table'], $values['join']['alias'], $values['join']['on']);
          }
          $arguments = isset($values['arguments']) ? $values['arguments'] : array();
          $query
            ->addScore($values['score'], $arguments, $node_rank);
        }
      }
    }
  }

  /**
   * {@inheritdoc}
   */
  public function updateIndex() {

    // Interpret the cron limit setting as the maximum number of nodes to index
    // per cron run.
    $limit = (int) $this->searchSettings
      ->get('index.cron_limit');
    $result = $this->database
      ->queryRange("SELECT n.nid, MAX(sd.reindex) FROM {node} n LEFT JOIN {search_dataset} sd ON sd.sid = n.nid AND sd.type = :type WHERE sd.sid IS NULL OR sd.reindex <> 0 GROUP BY n.nid ORDER BY MAX(sd.reindex) is null DESC, MAX(sd.reindex) ASC, n.nid ASC", 0, $limit, array(
      ':type' => $this
        ->getPluginId(),
    ), array(
      'target' => 'replica',
    ));
    $nids = $result
      ->fetchCol();
    if (!$nids) {
      return;
    }
    $node_storage = $this->entityManager
      ->getStorage('node');
    foreach ($node_storage
      ->loadMultiple($nids) as $node) {
      $this
        ->indexNode($node);
    }
  }

  /**
   * Indexes a single node.
   *
   * @param \Drupal\node\NodeInterface $node
   *   The node to index.
   */
  protected function indexNode(NodeInterface $node) {
    $languages = $node
      ->getTranslationLanguages();
    $node_render = $this->entityManager
      ->getViewBuilder('node');
    foreach ($languages as $language) {
      $node = $node
        ->getTranslation($language
        ->getId());

      // Render the node.
      $build = $node_render
        ->view($node, 'search_index', $language
        ->getId());
      unset($build['#theme']);

      // Add the title to text so it is searchable.
      $build['search_title'] = [
        '#prefix' => '<h1>',
        '#plain_text' => $node
          ->label(),
        '#suffix' => '</h1>',
        '#weight' => -1000,
      ];
      $text = $this->renderer
        ->renderPlain($build);

      // Fetch extra data normally not visible.
      $extra = $this->moduleHandler
        ->invokeAll('node_update_index', [
        $node,
      ]);
      foreach ($extra as $t) {
        $text .= $t;
      }

      // Update index, using search index "type" equal to the plugin ID.
      search_index($this
        ->getPluginId(), $node
        ->id(), $language
        ->getId(), $text);
    }
  }

  /**
   * {@inheritdoc}
   */
  public function indexClear() {

    // All NodeSearch pages share a common search index "type" equal to
    // the plugin ID.
    search_index_clear($this
      ->getPluginId());
  }

  /**
   * {@inheritdoc}
   */
  public function markForReindex() {

    // All NodeSearch pages share a common search index "type" equal to
    // the plugin ID.
    search_mark_for_reindex($this
      ->getPluginId());
  }

  /**
   * {@inheritdoc}
   */
  public function indexStatus() {
    $total = $this->database
      ->query('SELECT COUNT(*) FROM {node}')
      ->fetchField();
    $remaining = $this->database
      ->query("SELECT COUNT(DISTINCT n.nid) FROM {node} n LEFT JOIN {search_dataset} sd ON sd.sid = n.nid AND sd.type = :type WHERE sd.sid IS NULL OR sd.reindex <> 0", array(
      ':type' => $this
        ->getPluginId(),
    ))
      ->fetchField();
    return array(
      'remaining' => $remaining,
      'total' => $total,
    );
  }

  /**
   * {@inheritdoc}
   */
  public function searchFormAlter(array &$form, FormStateInterface $form_state) {
    $parameters = $this
      ->getParameters();
    $keys = $this
      ->getKeywords();
    $used_advanced = !empty($parameters[self::ADVANCED_FORM]);
    if ($used_advanced) {
      $f = isset($parameters['f']) ? (array) $parameters['f'] : array();
      $defaults = $this
        ->parseAdvancedDefaults($f, $keys);
    }
    else {
      $defaults = array(
        'keys' => $keys,
      );
    }
    $form['basic']['keys']['#default_value'] = $defaults['keys'];

    // Add advanced search keyword-related boxes.
    $form['advanced'] = array(
      '#type' => 'details',
      '#title' => t('Advanced search'),
      '#attributes' => array(
        'class' => array(
          'search-advanced',
        ),
      ),
      '#access' => $this->account && $this->account
        ->hasPermission('use advanced search'),
      '#open' => $used_advanced,
    );
    $form['advanced']['keywords-fieldset'] = array(
      '#type' => 'fieldset',
      '#title' => t('Keywords'),
    );
    $form['advanced']['keywords'] = array(
      '#prefix' => '<div class="criterion">',
      '#suffix' => '</div>',
    );
    $form['advanced']['keywords-fieldset']['keywords']['or'] = array(
      '#type' => 'textfield',
      '#title' => t('Containing any of the words'),
      '#size' => 30,
      '#maxlength' => 255,
      '#default_value' => isset($defaults['or']) ? $defaults['or'] : '',
    );
    $form['advanced']['keywords-fieldset']['keywords']['phrase'] = array(
      '#type' => 'textfield',
      '#title' => t('Containing the phrase'),
      '#size' => 30,
      '#maxlength' => 255,
      '#default_value' => isset($defaults['phrase']) ? $defaults['phrase'] : '',
    );
    $form['advanced']['keywords-fieldset']['keywords']['negative'] = array(
      '#type' => 'textfield',
      '#title' => t('Containing none of the words'),
      '#size' => 30,
      '#maxlength' => 255,
      '#default_value' => isset($defaults['negative']) ? $defaults['negative'] : '',
    );

    // Add node types.
    $types = array_map(array(
      '\\Drupal\\Component\\Utility\\Html',
      'escape',
    ), node_type_get_names());
    $form['advanced']['types-fieldset'] = array(
      '#type' => 'fieldset',
      '#title' => t('Types'),
    );
    $form['advanced']['types-fieldset']['type'] = array(
      '#type' => 'checkboxes',
      '#title' => t('Only of the type(s)'),
      '#prefix' => '<div class="criterion">',
      '#suffix' => '</div>',
      '#options' => $types,
      '#default_value' => isset($defaults['type']) ? $defaults['type'] : array(),
    );
    $form['advanced']['submit'] = array(
      '#type' => 'submit',
      '#value' => t('Advanced search'),
      '#prefix' => '<div class="action">',
      '#suffix' => '</div>',
      '#weight' => 100,
    );

    // Add languages.
    $language_options = array();
    $language_list = $this->languageManager
      ->getLanguages(LanguageInterface::STATE_ALL);
    foreach ($language_list as $langcode => $language) {

      // Make locked languages appear special in the list.
      $language_options[$langcode] = $language
        ->isLocked() ? t('- @name -', array(
        '@name' => $language
          ->getName(),
      )) : $language
        ->getName();
    }
    if (count($language_options) > 1) {
      $form['advanced']['lang-fieldset'] = array(
        '#type' => 'fieldset',
        '#title' => t('Languages'),
      );
      $form['advanced']['lang-fieldset']['language'] = array(
        '#type' => 'checkboxes',
        '#title' => t('Languages'),
        '#prefix' => '<div class="criterion">',
        '#suffix' => '</div>',
        '#options' => $language_options,
        '#default_value' => isset($defaults['language']) ? $defaults['language'] : array(),
      );
    }
  }

  /*
   * {@inheritdoc}
   */
  public function buildSearchUrlQuery(FormStateInterface $form_state) {

    // Read keyword and advanced search information from the form values,
    // and put these into the GET parameters.
    $keys = trim($form_state
      ->getValue('keys'));
    $advanced = FALSE;

    // Collect extra filters.
    $filters = array();
    if ($form_state
      ->hasValue('type') && is_array($form_state
      ->getValue('type'))) {

      // Retrieve selected types - Form API sets the value of unselected
      // checkboxes to 0.
      foreach ($form_state
        ->getValue('type') as $type) {
        if ($type) {
          $advanced = TRUE;
          $filters[] = 'type:' . $type;
        }
      }
    }
    if ($form_state
      ->hasValue('term') && is_array($form_state
      ->getValue('term'))) {
      foreach ($form_state
        ->getValue('term') as $term) {
        $filters[] = 'term:' . $term;
        $advanced = TRUE;
      }
    }
    if ($form_state
      ->hasValue('language') && is_array($form_state
      ->getValue('language'))) {
      foreach ($form_state
        ->getValue('language') as $language) {
        if ($language) {
          $advanced = TRUE;
          $filters[] = 'language:' . $language;
        }
      }
    }
    if ($form_state
      ->getValue('or') != '') {
      if (preg_match_all('/ ("[^"]+"|[^" ]+)/i', ' ' . $form_state
        ->getValue('or'), $matches)) {
        $keys .= ' ' . implode(' OR ', $matches[1]);
        $advanced = TRUE;
      }
    }
    if ($form_state
      ->getValue('negative') != '') {
      if (preg_match_all('/ ("[^"]+"|[^" ]+)/i', ' ' . $form_state
        ->getValue('negative'), $matches)) {
        $keys .= ' -' . implode(' -', $matches[1]);
        $advanced = TRUE;
      }
    }
    if ($form_state
      ->getValue('phrase') != '') {
      $keys .= ' "' . str_replace('"', ' ', $form_state
        ->getValue('phrase')) . '"';
      $advanced = TRUE;
    }
    $keys = trim($keys);

    // Put the keywords and advanced parameters into GET parameters. Make sure
    // to put keywords into the query even if it is empty, because the page
    // controller uses that to decide it's time to check for search results.
    $query = array(
      'keys' => $keys,
    );
    if ($filters) {
      $query['f'] = $filters;
    }

    // Record that the person used the advanced search form, if they did.
    if ($advanced) {
      $query[self::ADVANCED_FORM] = '1';
    }
    return $query;
  }

  /**
   * Parses the advanced search form default values.
   *
   * @param array $f
   *   The 'f' query parameter set up in self::buildUrlSearchQuery(), which
   *   contains the advanced query values.
   * @param string $keys
   *   The search keywords string, which contains some information from the
   *   advanced search form.
   *
   * @return array
   *   Array of default form values for the advanced search form, including
   *   a modified 'keys' element for the bare search keywords.
   */
  protected function parseAdvancedDefaults($f, $keys) {
    $defaults = array();

    // Split out the advanced search parameters.
    foreach ($f as $advanced) {
      list($key, $value) = explode(':', $advanced, 2);
      if (!isset($defaults[$key])) {
        $defaults[$key] = array();
      }
      $defaults[$key][] = $value;
    }

    // Split out the negative, phrase, and OR parts of keywords.
    // For phrases, the form only supports one phrase.
    $matches = array();
    $keys = ' ' . $keys . ' ';
    if (preg_match('/ "([^"]+)" /', $keys, $matches)) {
      $keys = str_replace($matches[0], ' ', $keys);
      $defaults['phrase'] = $matches[1];
    }

    // Negative keywords: pull all of them out.
    if (preg_match_all('/ -([^ ]+)/', $keys, $matches)) {
      $keys = str_replace($matches[0], ' ', $keys);
      $defaults['negative'] = implode(' ', $matches[1]);
    }

    // OR keywords: pull up to one set of them out of the query.
    if (preg_match('/ [^ ]+( OR [^ ]+)+ /', $keys, $matches)) {
      $keys = str_replace($matches[0], ' ', $keys);
      $words = explode(' OR ', trim($matches[0]));
      $defaults['or'] = implode(' ', $words);
    }

    // Put remaining keywords string back into keywords.
    $defaults['keys'] = trim($keys);
    return $defaults;
  }

  /**
   * Gathers ranking definitions from hook_ranking().
   *
   * @return array
   *   An array of ranking definitions.
   */
  protected function getRankings() {
    if (!$this->rankings) {
      $this->rankings = $this->moduleHandler
        ->invokeAll('ranking');
    }
    return $this->rankings;
  }

  /**
   * {@inheritdoc}
   */
  public function defaultConfiguration() {
    $configuration = array(
      'rankings' => array(),
    );
    return $configuration;
  }

  /**
   * {@inheritdoc}
   */
  public function buildConfigurationForm(array $form, FormStateInterface $form_state) {

    // Output form for defining rank factor weights.
    $form['content_ranking'] = array(
      '#type' => 'details',
      '#title' => t('Content ranking'),
      '#open' => TRUE,
    );
    $form['content_ranking']['info'] = array(
      '#markup' => '<p><em>' . $this
        ->t('Influence is a numeric multiplier used in ordering search results. A higher number means the corresponding factor has more influence on search results; zero means the factor is ignored. Changing these numbers does not require the search index to be rebuilt. Changes take effect immediately.') . '</em></p>',
    );

    // Prepare table.
    $header = [
      $this
        ->t('Factor'),
      $this
        ->t('Influence'),
    ];
    $form['content_ranking']['rankings'] = array(
      '#type' => 'table',
      '#header' => $header,
    );

    // Note: reversed to reflect that higher number = higher ranking.
    $range = range(0, 10);
    $options = array_combine($range, $range);
    foreach ($this
      ->getRankings() as $var => $values) {
      $form['content_ranking']['rankings'][$var]['name'] = array(
        '#markup' => $values['title'],
      );
      $form['content_ranking']['rankings'][$var]['value'] = array(
        '#type' => 'select',
        '#options' => $options,
        '#attributes' => [
          'aria-label' => $this
            ->t("Influence of '@title'", [
            '@title' => $values['title'],
          ]),
        ],
        '#default_value' => isset($this->configuration['rankings'][$var]) ? $this->configuration['rankings'][$var] : 0,
      );
    }
    return $form;
  }

  /**
   * {@inheritdoc}
   */
  public function submitConfigurationForm(array &$form, FormStateInterface $form_state) {
    foreach ($this
      ->getRankings() as $var => $values) {
      if (!$form_state
        ->isValueEmpty([
        'rankings',
        $var,
        'value',
      ])) {
        $this->configuration['rankings'][$var] = $form_state
          ->getValue([
          'rankings',
          $var,
          'value',
        ]);
      }
      else {
        unset($this->configuration['rankings'][$var]);
      }
    }
  }

}

Members

Namesort descending Modifiers Type Description Overrides
ConfigurableSearchPluginBase::$searchPageId protected property The unique ID for the search page using this plugin.
ConfigurableSearchPluginBase::calculateDependencies public function Calculates dependencies for the configured plugin. Overrides DependentPluginInterface::calculateDependencies
ConfigurableSearchPluginBase::getConfiguration public function Gets this plugin's configuration. Overrides ConfigurablePluginInterface::getConfiguration
ConfigurableSearchPluginBase::setConfiguration public function Sets the configuration for this plugin instance. Overrides ConfigurablePluginInterface::setConfiguration
ConfigurableSearchPluginBase::setSearchPageId public function Sets the ID for the search page using this plugin. Overrides ConfigurableSearchPluginInterface::setSearchPageId
ConfigurableSearchPluginBase::validateConfigurationForm public function Form validation handler. Overrides PluginFormInterface::validateConfigurationForm
DependencySerializationTrait::$_serviceIds protected property An array of service IDs keyed by property name used for serialization.
DependencySerializationTrait::__sleep public function 1
DependencySerializationTrait::__wakeup public function 2
NodeSearch::$account protected property The Drupal account to use for checking for access to advanced search.
NodeSearch::$advanced protected property The list of options and info for advanced search filters.
NodeSearch::$database protected property A database connection object.
NodeSearch::$entityManager protected property An entity manager object.
NodeSearch::$languageManager protected property The language manager.
NodeSearch::$moduleHandler protected property A module manager object.
NodeSearch::$rankings protected property An array of additional rankings from hook_ranking().
NodeSearch::$renderer protected property The Renderer service to format the username and node.
NodeSearch::$searchSettings protected property A config object for 'search.settings'.
NodeSearch::access public function Checks data value access. Overrides AccessibleInterface::access
NodeSearch::addNodeRankings protected function Adds the configured rankings to the search query.
NodeSearch::ADVANCED_FORM constant A constant for setting and checking the query string.
NodeSearch::buildConfigurationForm public function Form constructor. Overrides PluginFormInterface::buildConfigurationForm
NodeSearch::buildSearchUrlQuery public function Builds the URL GET query parameters array for search. Overrides SearchPluginBase::buildSearchUrlQuery
NodeSearch::create public static function Creates an instance of the plugin. Overrides SearchPluginBase::create
NodeSearch::defaultConfiguration public function Gets default configuration for this plugin. Overrides ConfigurableSearchPluginBase::defaultConfiguration
NodeSearch::execute public function Executes the search. Overrides SearchInterface::execute
NodeSearch::findResults protected function Queries to find search results, and sets status messages.
NodeSearch::getRankings protected function Gathers ranking definitions from hook_ranking().
NodeSearch::getType public function Returns the search index type this plugin uses. Overrides SearchPluginBase::getType
NodeSearch::indexClear public function Clears the search index for this plugin. Overrides SearchIndexingInterface::indexClear
NodeSearch::indexNode protected function Indexes a single node.
NodeSearch::indexStatus public function Reports the status of indexing. Overrides SearchIndexingInterface::indexStatus
NodeSearch::isSearchExecutable public function Verifies if the values set via setSearch() are valid and sufficient. Overrides SearchPluginBase::isSearchExecutable
NodeSearch::markForReindex public function Marks the search index for reindexing for this plugin. Overrides SearchIndexingInterface::markForReindex
NodeSearch::parseAdvancedDefaults protected function Parses the advanced search form default values.
NodeSearch::prepareResults protected function Prepares search results for rendering.
NodeSearch::removeSubmittedInfo public function Removes the submitted by information from the build array.
NodeSearch::searchFormAlter public function Alters the search form when being built for a given plugin. Overrides SearchPluginBase::searchFormAlter
NodeSearch::submitConfigurationForm public function Form submission handler. Overrides PluginFormInterface::submitConfigurationForm
NodeSearch::updateIndex public function Updates the search index for this plugin. Overrides SearchIndexingInterface::updateIndex
NodeSearch::__construct public function Constructs a \Drupal\node\Plugin\Search\NodeSearch object. Overrides ConfigurableSearchPluginBase::__construct
PluginBase::$configuration protected property Configuration information passed into the plugin. 2
PluginBase::$pluginDefinition protected property The plugin implementation definition.
PluginBase::$pluginId protected property The plugin_id.
PluginBase::DERIVATIVE_SEPARATOR constant A string which is used to separate base plugin IDs from the derivative ID.
PluginBase::getBaseId public function Gets the base_plugin_id of the plugin instance. Overrides DerivativeInspectionInterface::getBaseId
PluginBase::getDerivativeId public function Gets the derivative_id of the plugin instance. Overrides DerivativeInspectionInterface::getDerivativeId
PluginBase::getPluginDefinition public function Gets the definition of the plugin implementation. Overrides PluginInspectionInterface::getPluginDefinition
PluginBase::getPluginId public function Gets the plugin_id of the plugin instance. Overrides PluginInspectionInterface::getPluginId
RefinableCacheableDependencyTrait::$cacheContexts protected property Cache contexts.
RefinableCacheableDependencyTrait::$cacheMaxAge protected property Cache max-age.
RefinableCacheableDependencyTrait::$cacheTags protected property Cache tags.
RefinableCacheableDependencyTrait::addCacheableDependency public function 1
RefinableCacheableDependencyTrait::addCacheContexts public function
RefinableCacheableDependencyTrait::addCacheTags public function
RefinableCacheableDependencyTrait::getCacheContexts public function 4
RefinableCacheableDependencyTrait::getCacheMaxAge public function 4
RefinableCacheableDependencyTrait::getCacheTags public function 4
RefinableCacheableDependencyTrait::mergeCacheMaxAge public function
SearchPluginBase::$keywords protected property The keywords to use in a search.
SearchPluginBase::$searchAttributes protected property Array of attributes - usually from the request object.
SearchPluginBase::$searchParameters protected property Array of parameters from the query string from the request.
SearchPluginBase::buildResults public function Executes the search and builds render arrays for the result items. Overrides SearchInterface::buildResults 1
SearchPluginBase::getAttributes public function Returns the currently set attributes (from the request). Overrides SearchInterface::getAttributes
SearchPluginBase::getHelp public function Returns the searching help. Overrides SearchInterface::getHelp 1
SearchPluginBase::getKeywords public function Returns the currently set keywords of the plugin instance. Overrides SearchInterface::getKeywords
SearchPluginBase::getParameters public function Returns the current parameters set using setSearch(). Overrides SearchInterface::getParameters
SearchPluginBase::setSearch public function Sets the keywords, parameters, and attributes to be used by execute(). Overrides SearchInterface::setSearch 1
SearchPluginBase::suggestedTitle public function Provides a suggested title for a page of search results. Overrides SearchInterface::suggestedTitle
StringTranslationTrait::$stringTranslation protected property The string translation service.
StringTranslationTrait::formatPlural protected function Formats a string containing a count of items.
StringTranslationTrait::getNumberOfPlurals protected function Returns the number of plurals supported by a given language.
StringTranslationTrait::getStringTranslation protected function Gets the string translation service.
StringTranslationTrait::setStringTranslation public function Sets the string translation service to use. 2
StringTranslationTrait::t protected function Translates a string to the current language or to a given language.