Indexing custom content fields

If you added fields to the tt_content table in order to use them with your own content elements, you can index these fields with the default page indexer, too.

Two hooks are needed:

• One adds the new field to the list of fields fetched from the tt_content table,
• the other one adds the field to the content written to the index.

Register the hooks

You need to register the hooks in your ext_localconf.php as follows:

// Register hooks for indexing additional fields.
$GLOBALS['TYPO3_CONF_VARS']['EXTCONF']['ke_search']['modifyPageContentFields'][] =
    \TeaminmediasPluswerk\KeSearchHooks\AdditionalContentFields::class;

$GLOBALS['TYPO3_CONF_VARS']['EXTCONF']['ke_search']['modifyContentFromContentElement'][] =
    \TeaminmediasPluswerk\KeSearchHooks\AdditionalContentFields::class;

Hook class

class AdditionalContentFields {

    public function modifyPageContentFields(&$fields, $pageIndexer)
    {
        // Add the field "subheader" from the tt_content table, which is normally not indexed, to the list of fields.
        $fields .= ",subheader";
    }

    public function modifyContentFromContentElement(string &$bodytext, array $ttContentRow, $pageIndexer)
    {
        // Add the content of the field "subheader" to $bodytext, which is, what will be saved to the index.
        $bodytext .= strip_tags($ttContentRow['subheader']);
    }

}

Example

You can find an example in the extension ke_search_hooks:

https://github.com/teaminmedias-pluswerk/ke_search_hooks