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.

Note

The hooks described below are not needed anymore to index custom fields in tt_content since ke_search version 4.5.0. Since then you can simply configure those fields in the indexer configuration. see indexer for pages.

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