class.assAnswerTrueFalse.php

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

require_once './Modules/TestQuestionPool/classes/class.assAnswerSimple.php';
require_once './Modules/Test/classes/inc.AssessmentConstants.php';

class ASS_AnswerTrueFalse extends ASS_AnswerSimple
{
        var $correctness;

        public function __construct( $answertext = "", $points = 0.0, $order = 0, $correctness = false )
        {
                parent::__construct($answertext, $points, $order);

                // force $this->correctness to be a string
                // ilDB->quote makes 1 from true and saving it to ENUM('1','0') makes that '0'!!!
                // (maybe that only happens for certain mysql versions)
                $this->correctness = $correctness."";
        }

        public function getCorrectness()
        {
                return $this->correctness;
        }

        public function isCorrect()
        {
                return $this->correctness;
        }

        public function isIncorrect()
        {
                return !$this->correctness;
        }

        public function isTrue()
        {
                return $this->correctness;
        }

        public function isFalse()
        {
                return !$this->correctness;
        }

        public function setCorrectness($correctness = FALSE)
        {
                // force $this->correctness to be a string
                // ilDB->quote makes 1 from true and saving it to ENUM('1','0') makes that '0'!!!
                // (maybe that only happens for certain mysql versions)
                $this->correctness = $correctness."";
        }

        public function setTrue()
        {
                $this->correctness = "1";
        }

        public function setFalse()
        {
                $this->correctness = "0";
        }
}