CiviCRM Community Forums (archive)

As I understand, the custom hook should fire before the database write. So that means I could access the old data before it is updated.
So, if I do this:
function joomla_civicrm_custom( $op, $groupID, $entityID, &$params ) {
    if ( ($op == 'edit') && $groupID == 7) {
        //get the current value from the DB
        $query = "SELECT joomla_kasutajakonto_32 FROM civicrm_value_muu_info_7 WHERE entity_id = {$entityID}";
        $dao =& CRM_Core_DAO::executeQuery( $query, CRM_Core_DAO::$_nullArray );
        $dao->fetch( );
        $db_value=$dao->joomla_kasutajakonto_32;
CRM_Core_Error::debug_var('TULEMUS', $db_value);
    }
}
But that code dumps the new value not the old one taken from the database. So it seems the new value is written before the hook is called.

Am I missing something here?

Description

This hook is called before a db write on a custom table

This is from the hook specification page.