class.ilAsqService.php

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<?php
/* Copyright (c) 1998-2013 ILIAS open source, Extended GPL, see docs/LICENSE */

class ilAsqService
{
    public function fetchNextAuthoringCommandClass($nextClass) : string
    {
        global $DIC; /* @var ILIAS\DI\Container $DIC */
        
        $row = $DIC->database()->fetchAssoc($DIC->database()->queryF(
            "SELECT COUNT(question_type_id) cnt FROM qpl_qst_type WHERE ctrl_class = %s",
            array('text'),
            array($nextClass)
        ));
        
        if ($row['cnt']) {
            // current next class is indeed an authoring ctrl class,
            // return it to have the switch(nextclass) case matching
            return $nextClass;
        }
        
        // the interface that NOT represents a valid ctrl class,
        // this will lead to a non matching switch(nextclass) case
        return 'ilasqquestionauthoring';
    }
    
    public function determineQuestionTypeByQtiItem(ilQTIItem $qtiItem) : string
    {
        // the qti service parses ILIAS question types, so use it
        // although this may get changed in the future
        return $qtiItem->getQuestiontype();
    }
    
    public function questionTitleExists($parentObjectId, $questionTitle) : bool
    {
        global $DIC; /* @var ILIAS\DI\Container $DIC */
        
        $row = $DIC->database()->fetchAssoc($DIC->database()->queryF(
            "SELECT COUNT(question_id) cnt FROM qpl_questions WHERE obj_fi = %s AND title = %s",
            array('integer', 'text'),
            array($parentObjectId, $questionTitle)
        ));
        
        return $row['cnt'] > 0;
    }
}