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.

1. 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'][] =
      \MyVendor\KeSearchHooks\AdditionalContentFields::class;
   
   $GLOBALS['TYPO3_CONF_VARS']['EXTCONF']['ke_search']['modifyContentFromContentElement'][] =
      \MyVendor\KeSearchHooks\AdditionalContentFields::class;
   

2. 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://extensions.typo3.org/extension/ke_search_hooks