class.assAnswerTrueFalse.php

Go to the documentation of this file.

<?php
 /*
   +----------------------------------------------------------------------------+
   | ILIAS open source                                                          |
   +----------------------------------------------------------------------------+
   | Copyright (c) 1998-2001 ILIAS open source, University of Cologne           |
   |                                                                            |
   | This program is free software; you can redistribute it and/or              |
   | modify it under the terms of the GNU General Public License                |
   | as published by the Free Software Foundation; either version 2             |
   | of the License, or (at your option) any later version.                     |
   |                                                                            |
   | This program is distributed in the hope that it will be useful,            |
   | but WITHOUT ANY WARRANTY; without even the implied warranty of             |
   | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the              |
   | GNU General Public License for more details.                               |
   |                                                                            |
   | You should have received a copy of the GNU General Public License          |
   | along with this program; if not, write to the Free Software                |
   | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | 
   +----------------------------------------------------------------------------+
*/

include_once "./Modules/TestQuestionPool/classes/class.assAnswerSimple.php";
include_once "./Modules/Test/classes/inc.AssessmentConstants.php";

class ASS_AnswerTrueFalse extends ASS_AnswerSimple {
  var $correctness;

  function ASS_AnswerTrueFalse (
    $answertext = "",
    $points = 0.0,
    $order = 0,
    $correctness = FALSE
  )
  {
    $this->ASS_AnswerSimple($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."";
  }


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

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

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

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

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


  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."";
  }

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

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

?>