class.ilPCQuestion.php

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<?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. |
        +-----------------------------------------------------------------------------+
*/

require_once("./Services/COPage/classes/class.ilPageContent.php");

class ilPCQuestion extends ilPageContent
{
        var $dom;
        var $q_node;                    // node of Paragraph element
        
        function init()
        {
                $this->setType("pcqst");
        }

        function setNode(&$a_node)
        {
                parent::setNode($a_node);               // this is the PageContent node
                $this->q_node =& $a_node->first_child();                //... and this the Question
        }

        function setQuestionReference($a_questionreference)
        {
                if (is_object($this->q_node))
                {
                        $this->q_node->set_attribute("QRef", $a_questionreference);
                }
        }

        function getQuestionReference()
        {
                if (is_object($this->q_node))
                {
                        return $this->q_node->get_attribute("QRef", $a_questionreference);
                }
                return false;
        }

        function create(&$a_pg_obj, $a_hier_id)
        {
                $this->createPageContentNode();
                $a_pg_obj->insertContent($this, $a_hier_id, IL_INSERT_AFTER);
                $this->q_node = $this->dom->create_element("Question");
                $this->q_node = $this->node->append_child($this->q_node);
                $this->q_node->set_attribute("QRef", "");
        }
        
        function copyPoolQuestionIntoPage($a_q_id, $a_hier_id)
        {
                include_once "./Modules/TestQuestionPool/classes/class.assQuestion.php";
                include_once "./Modules/TestQuestionPool/classes/class.assQuestionGUI.php";
                $question = assQuestion::_instanciateQuestion($a_q_id);
                $duplicate_id = $question->copyObject(0, $question->getTitle());
                $duplicate = assQuestion::_instanciateQuestion($duplicate_id);
                $duplicate->setObjId(0);
                
                // we remove everything not supported by the non-tiny self
                // assessment question editor
                $q = $duplicate->getQuestion();

                // we try to save all latex tags
                $try = true;
                $ls = '<span class="latex">';
                $le = '</span>';
                while ($try)
                {
                        // search position of start tag
                        $pos1 = strpos($q, $ls);
                        if (is_int($pos1))
                        {
                                $pos2 = strpos($q, $le, $pos1);
                                if (is_int($pos2))
                                {
                                        // both found: replace end tag
                                        $q = substr($q, 0, $pos2)."[/tex]".substr($q, $pos2+7);
                                        $q = substr($q, 0, $pos1)."[tex]".substr($q, $pos1+20);
                                }
                                else
                                {
                                        $try = false;
                                }
                        }
                        else
                        {
                                $try = false;
                        }
                }
                
                $tags = assQuestionGUI::getSelfAssessmentTags();
                $tstr = "";
                foreach ($tags as $t)
                {
                        $tstr.="<".$t.">";
                }
                $q = ilUtil::secureString($q, true, $tstr);
                // self assessment uses nl2br, not p
                $duplicate->setQuestion($q);
                
                $duplicate->saveQuestionDataToDb();
                
                $this->q_node->set_attribute("QRef", "il__qst_".$duplicate_id);
        }
        
}
?>