class.ilObjExerciseVerification.php

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<?php
/* Copyright (c) 1998-2010 ILIAS open source, Extended GPL, see docs/LICENSE */

include_once('./Services/Verification/classes/class.ilVerificationObject.php');

class ilObjExerciseVerification extends ilVerificationObject
{
    protected function initType()
    {
        $this->type = "excv";
    }

    protected function getPropertyMap()
    {
        return array("issued_on" => self::TYPE_DATE,
            "file" => self::TYPE_STRING
            /*
            "success" => self::TYPE_BOOL,
            "mark" => self::TYPE_STRING,
            "comment" => self::TYPE_STRING
            */
            );
    }

    public static function createFromExercise(ilObjExercise $a_exercise, $a_user_id)
    {
        global $DIC;

        $lng = $DIC->language();
        
        $lng->loadLanguageModule("exercise");
        
        $newObj = new self();
        $newObj->setTitle($a_exercise->getTitle());
        $newObj->setDescription($a_exercise->getDescription());

        include_once "Services/Tracking/classes/class.ilLPMarks.php";
        $lp_marks = new ilLPMarks($a_exercise->getId(), $a_user_id);
        $newObj->setProperty(
            "issued_on",
            new ilDate($lp_marks->getStatusChanged(), IL_CAL_DATETIME)
        );
        
        // create certificate
        include_once "Services/Certificate/classes/class.ilCertificate.php";
        include_once "Modules/Exercise/classes/class.ilExerciseCertificateAdapter.php";
        $certificate = new ilCertificate(new ilExerciseCertificateAdapter($a_exercise));
        $certificate = $certificate->outCertificate(array("user_id" => $a_user_id), false);
        
        // save pdf file
        if ($certificate) {
            // we need the object id for storing the certificate file
            $newObj->create();
            
            $path = self::initStorage($newObj->getId(), "certificate");
            
            $file_name = "exc_" . $a_exercise->getId() . "_" . $a_user_id . ".pdf";
            if (file_put_contents($path . $file_name, $certificate)) {
                $newObj->setProperty("file", $file_name);
                $newObj->update();
                
                return $newObj;
            }
        
            // file creation failed, so remove to object, too
            $newObj->delete();
        }
    }
}