如何为Mask-Extension编写ke_search索引器？

Question

在Typo3网站项目上，我想集成搜索功能并选择Typo3扩展名“ ke_search”。大多数内容是通过使用Mask扩展构建的Content Elements生成的-不幸的是ke_search并没有开箱即用地为该内容编制索引。

我了解到我必须为此编写一个索引器-但我不知道如何。我已经安装了示例索引器“ ke_search_hooks”（请参见下文），但我不知道如何针对Mask扩展对其进行调整。例如，Mask使用多个表（取决于所构建的内容元素的数量），但是在示例中，仅使用了一个表（$table = 'tx_news_domain_model_news';）。

您能给我一个提示，我该怎么做吗？非常感谢你！ -迈克尔

Typo3 V.8.7.12 // ke_search V.2.8.0 // ke_search_hooks V.2.0.0 // 遮罩V.3.1.0

<?php
// set you own vendor name adjust the extension name part of the namespace to your extension key
namespace TeaminmediasPluswerk\KeSearchHooks;

use TYPO3\CMS\Core\Utility\ExtensionManagementUtility;

// set you own class name
class ExampleIndexer
{
    // Set a key for your indexer configuration.
    // Add this in Configuration/TCA/Overrides/tx_kesearch_indexerconfig.php, too!
    protected $indexerConfigurationKey = 'customindexer';

    /**
     * Adds the custom indexer to the TCA of indexer configurations, so that
     * it's selectable in the backend as an indexer type when you create a
     * new indexer configuration.
     *
     * @param array $params
     * @param type $pObj
     */
    public function registerIndexerConfiguration(&$params, $pObj)
    {
        // Set a name and an icon for your indexer.
        $customIndexer = array(
            '[CUSTOM] News-Indexer (ext:news)',
            $this->indexerConfigurationKey,
            ExtensionManagementUtility::extRelPath('ke_search_hooks') . 'customnews-indexer-icon.gif'
        );
        $params['items'][] = $customIndexer;
    }


    /**
     * Custom indexer for ke_search
     *
     * @param   array $indexerConfig Configuration from TYPO3 Backend
     * @param   array $indexerObject Reference to indexer class.
     * @return  string Message containing indexed elements
     * @author  Christian Buelter <christian.buelter@pluswerk.ag>
     */
    public function customIndexer(&$indexerConfig, &$indexerObject)
    {
        if ($indexerConfig['type'] == $this->indexerConfigurationKey) {
            $content = '';

            // get all the entries to index
            // don't index hidden or deleted elements, but
            // get the elements with frontend user group access restrictions
            // or time (start / stop) restrictions, in order to copy those restrictions to the index.
            $fields = '*';
            $table = 'tx_news_domain_model_news';
            $where = 'pid IN (' . $indexerConfig['sysfolder'] . ') AND hidden = 0 AND deleted = 0';
            $groupBy = '';
            $orderBy = '';
            $limit = '';
            $res = $GLOBALS['TYPO3_DB']->exec_SELECTquery($fields, $table, $where, $groupBy, $orderBy, $limit);
            $resCount = $GLOBALS['TYPO3_DB']->sql_num_rows($res);

            // Loop through the records and write them to the index.
            if ($resCount) {
                $counter = 0;
                while (($record = $GLOBALS['TYPO3_DB']->sql_fetch_assoc($res))) {
                    // compile the information which should go into the index
                    // the field names depend on the table you want to index!
                    $title      = strip_tags($record['title']);
                    $abstract   = strip_tags($record['teaser']);
                    $content    = strip_tags($record['bodytext']);

                    $fullContent = $title . "\n" . $abstract . "\n" . $content;

                    // Link to detail view
                    $params = '&tx_news_pi1[news]=' . $record['uid']
                        . '&tx_news_pi1[controller]=News&tx_news_pi1[action]=detail';

                    // Tags
                    // If you youse Sphinx, use "_" instead of "#" (configurable in the extension manager)
                    $tags = '#example_tag_1#,#example_tag_2#';

                    // Additional information
                    $additionalFields = array(
                        'sortdate' => $record['crdate'],
                        'orig_uid' => $record['uid'],
                        'orig_pid' => $record['pid'],
                        'sortdate' => $record['datetime'],
                    );

                    // add something to the title, just to identify the entries
                    // in the frontend
                    $title = '[CUSTOM INDEXER] ' . $title;

                    // ... and store the information in the index
                    $indexerObject->storeInIndex(
                        $indexerConfig['storagepid'],   // storage PID
                        $title,                         // record title
                        $this->indexerConfigurationKey, // content type
                        $indexerConfig['targetpid'],    // target PID: where is the single view?
                        $fullContent,                   // indexed content, includes the title (linebreak after title)
                        $tags,                          // tags for faceted search
                        $params,                        // typolink params for singleview
                        $abstract,                      // abstract; shown in result list if not empty
                        $record['sys_language_uid'],    // language uid
                        $record['starttime'],           // starttime
                        $record['endtime'],             // endtime
                        $record['fe_group'],            // fe_group
                        false,                          // debug only?
                        $additionalFields               // additionalFields
                    );
                    $counter++;
                }

                $content =
                    '<p><b>Custom Indexer "'
                    . $indexerConfig['title'] . '": ' . $counter
                    . ' Elements have been indexed.</b></p>';
            }

            return $content;
        }
    }

}