moodle/mod/quiz/edit.php

<?php // $Id$

///////////////////////////////////////////////////////////////////////////
//                                                                       //
// NOTICE OF COPYRIGHT                                                   //
//                                                                       //
// Moodle - Modular Object-Oriented Dynamic Learning Environment         //
//          http://moodle.org                                            //
//                                                                       //
// Copyright (C) 1999 onwards Martin Dougiamas and others                //
//                                                                       //
// 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:                          //
//                                                                       //
//          http://www.gnu.org/copyleft/gpl.html                         //
//                                                                       //
///////////////////////////////////////////////////////////////////////////

/**
 * Page to edit quizzes
 *
 * This page generally has two columns:
 * The right column lists all available questions in a chosen category and
 * allows them to be edited or more to be added. This column is only there if
 * the quiz does not already have student attempts
 * The left column lists all questions that have been added to the current quiz.
 * The lecturer can add questions from the right hand list to the quiz or remove them
 *
 * The script also processes a number of actions:
 * Actions affecting a quiz:
 * up and down  Changes the order of questions and page breaks
 * addquestion  Adds a single question to the quiz
 * add          Adds several selected questions to the quiz
 * addrandom    Adds a certain number of random questions to the quiz
 * repaginate   Re-paginates the quiz
 * delete       Removes a question from the quiz
 * savechanges  Saves the order and grades for questions in the quiz
 *
 * @license http://www.gnu.org/copyleft/gpl.html GNU Public License
 * @package quiz
 *//** */

require_once("../../config.php");
require_once($CFG->dirroot.'/mod/quiz/editlib.php');
require_once($CFG->dirroot."/question/category_class.php");
require_js(array('yui_yahoo','yui_dom-event','yui_container','yui_dragdrop'));

/**
 * Callback function called from question_list() function
 * (which is called from showbank())
 * Displays button in form with checkboxes for each question.
 */
function module_specific_buttons($cmid, $cmoptions){
    if($cmoptions->hasattempts){
        $disabled='disabled="disabled"';
    }else{
        $disabled='';
    }
    global $THEME;
    $straddtoquiz = get_string("addtoquiz", "quiz");
    $out = "<input type=\"submit\" name=\"add\"
            value=\"{$THEME->larrow} $straddtoquiz\" $disabled />\n";
    return $out;
}


/**
 * Callback function called from question_list() function
 * (which is called from showbank())
 */
function module_specific_controls($totalnumber, $recurse, $category, $cmid, $cmoptions){
    global $THEME,$QTYPES;
    $out = '';
    $catcontext = get_context_instance_by_id($category->contextid);
    if (has_capability('moodle/question:useall', $catcontext)){
        if($cmoptions->hasattempts){
            $disabled='disabled="disabled"';
        }else{
            $disabled='';
        }
        $randomusablequestions = $QTYPES['random']->get_usable_questions_from_category(
                $category->id, $recurse, '0');
        $maxrand = count($randomusablequestions);
        if ($maxrand > 0) {
            for ($i = 1;$i <= min(10, $maxrand); $i++) {
                $randomcount[$i] = $i;
            }
            for ($i = 20;$i <= min(100, $maxrand); $i += 10) {
                $randomcount[$i] = $i;
            }
            $straddtoquiz = get_string("addtoquiz", "quiz");
            $out = '<strong><label for="menurandomcount">'.get_string('addrandomfromcategory','quiz').
                    '</label></strong><br />';
            $out .= get_string('addrandom', 'quiz', choose_from_menu($randomcount,
                    'randomcount', '1', '', '', '', true,$cmoptions->hasattempts));
            $out .= '<input type="hidden" name="recurse" value="'.$recurse.'" />';
            $out .= "<input type=\"hidden\" name=\"categoryid\"
                    value=\"$category->id\" />";
            $out .= ' <input type="submit" name="addrandom" value="'.
                    $straddtoquiz.'" '.$disabled.' />';
            $out .= helpbutton('random', get_string('random', 'quiz'), 'quiz',
                    true, false, '', true);
        }
    }
    return $out;
}

list($thispageurl, $contexts, $cmid, $cm, $quiz, $pagevars) =
        question_edit_setup('editq', true);

$defaultcategoryobj = question_make_default_categories($contexts->all());
$defaultcategoryid=$defaultcategoryobj->id;
$defaultcategorycontext=$defaultcategoryobj->contextid;
$defaultcategory="$defaultcategoryid,$defaultcategorycontext";
//these params are only passed from page request to request while we stay on
//this page otherwise they would go in question_edit_setup
$quiz_reordertool = optional_param('reordertool', 0, PARAM_BOOL);
$quiz_qbanktool = optional_param('qbanktool', -1, PARAM_BOOL);
if ($quiz_qbanktool > -1) {
    $thispageurl->param('qbanktool', $quiz_qbanktool);
    set_user_preference("quiz_qbanktool_open",$quiz_qbanktool);
} else {
    $quiz_qbanktool = get_user_preferences("quiz_qbanktool_open",0);
}

//will be set further down in the code
$quiz_has_attempts=false;

if ($quiz_reordertool != 0) {
    $thispageurl->param('reordertool', $quiz_reordertool);
}

$strquizzes = get_string('modulenameplural', 'quiz');
$strquiz = get_string('modulename', 'quiz');
$streditingquestions = get_string('editquestions', "quiz");

//this just does not work for at least finnish, where words are conjugated:
//$streditingquiz = get_string('editinga', 'moodle', $strquiz);
$streditingquiz = get_string('editingquiz', 'quiz');
$strorderingquiz = get_string('orderingquiz', 'quiz');
$pagetitle=$streditingquiz;
if($quiz_reordertool){
    $pagetitle=$strorderingquiz;
}
// Get the course object and related bits.
if (! $course = $DB->get_record('course', array('id' => $quiz->course))) {
    print_error('invalidcourseid', 'error');
}

$questionbank = new quiz_question_bank_view($contexts, $thispageurl, $course, $cm);

// Log this visit.
add_to_log($cm->course, 'quiz', 'editquestions',
            "view.php?id=$cm->id", "$quiz->id", $cm->id);

//you need mod/quiz:manage in addition to question capabilities to access
//this page.
require_capability('mod/quiz:manage', $contexts->lowest());

if (isset($quiz->instance) && empty($quiz->grades)){  // Construct an array to hold all the grades.
    $quiz->grades = quiz_get_all_question_grades($quiz);
}

// SECTION: PROCESS COMMANDS //
/// Now, check for commands on this page and modify variables as necessary
// If any edit action makes a sifnificant change to the structure of the quiz,
// then we will need to delete all preview attempts.
$significantchangemade = false;
if (($up = optional_param('up', false, PARAM_INT)) !== false and
        confirm_sesskey()) { /// Move the given question up a slot
    $questions = explode(",", $quiz->questions);
    if ($up > 0 and isset($questions[$up])) {
        //$prevkey = ($questions[$up-1] == 0) ? $up-2 : $up-1;
        $prevkey = $up-1;
        $swap = $questions[$prevkey];
        $questions[$prevkey] = $questions[$up];
        $questions[$up]   = $swap;
        $quiz->questions = implode(",", $questions);
        $quiz->questions=quiz_clean_layout($quiz->questions);
        if (!$DB->set_field('quiz', 'questions', $quiz->questions,
                array('id' => $quiz->instance))) {
            print_error('cannotsavequestion', 'quiz');
        }
        $significantchangemade = true;
    }
}


if (($down = optional_param('down', false, PARAM_INT)) !== false and
        confirm_sesskey()) { /// Move the given question down a slot
    $questions = explode(",", $quiz->questions);
    if ($down < count($questions)) {
        //$nextkey = ($questions[$down+1] == 0) ? $down+2 : $down+1;
        $nextkey = $down+1;
        $swap = $questions[$nextkey];
        $questions[$nextkey] = $questions[$down];
        $questions[$down]   = $swap;
        $quiz->questions = implode(",", $questions);
        $quiz->questions=quiz_clean_layout($quiz->questions);
        if (!$DB->set_field('quiz', 'questions', $quiz->questions,
                array('id' => $quiz->instance))) {
            print_error('cannotsavequestion', 'quiz');
        }
        $significantchangemade = true;
    }
}
if (($addquestion = optional_param('addquestion', 0, PARAM_INT)) and
        confirm_sesskey()) { /// Add a single question to the current quiz
    $addonpage = optional_param('addonpage',0,PARAM_INT);
    quiz_add_quiz_question($addquestion, $quiz, $addonpage);
    $significantchangemade = true;
}

if (optional_param('add', false, PARAM_BOOL) and
        confirm_sesskey()) { /// Add selected questions to the current quiz
    $rawdata = (array) data_submitted();
    foreach ($rawdata as $key => $value) {    // Parse input for question ids
        if (preg_match('!^q([0-9]+)$!', $key, $matches)) {
            $key = $matches[1];
            quiz_add_quiz_question($key, $quiz);
        }
    }
    $significantchangemade = true;
}

$qcobject = new question_category_object(
    $pagevars['cpage'],
    $thispageurl,
    $contexts->having_one_edit_tab_cap('categories'),
    $defaultcategoryid,
    $defaultcategory,
    null,
    $contexts->having_cap('moodle/question:add'));

$newrandomcategory=false;
$newquestioninfo=quiz_process_randomquestion_formdata($qcobject);
if($newquestioninfo){
    $newrandomcategory=$newquestioninfo->newrandomcategory;
    if (!$newrandomcategory){
        print_r($newquestioninfo);
        print_error("cannotcreatecategory");
    }else{
        add_to_log($quiz->course, 'quiz', 'addcategory',
                "view.php?id=$cm->id", "$newrandomcategory", $cm->id);
    }
}

if ((optional_param('addrandom', false, PARAM_BOOL) OR $newrandomcategory)
        and confirm_sesskey()) {
    /// Add random questions to the quiz
    $recurse = optional_param('recurse', 0, PARAM_BOOL);
    $addonpage = optional_param('addonpage',0,PARAM_INT);
    if($newrandomcategory){
        $categoryid = $newrandomcategory;
        $randomcount = optional_param('randomcount',1, PARAM_INT);
    }else{
        $categoryid = required_param('categoryid', PARAM_INT);
        $randomcount = required_param('randomcount', PARAM_INT);
    }
    // load category
    if (! $category = $DB->get_record('question_categories', array('id' => $categoryid))) {
        print_error('invalidcategoryid', 'error');
    }
    $catcontext = get_context_instance_by_id($category->contextid);
    require_capability('moodle/question:useall', $catcontext);
    $category->name = $category->name;
    // Find existing random questions in this category that are
    // not used by any quiz.
    if ($existingquestions = $DB->get_records_sql(
            "SELECT q.id,q.qtype FROM {question} q
            WHERE qtype = '" . RANDOM . "'
                AND category = ?
                AND " . $DB->sql_compare_text('questiontext') . " = ?
                AND NOT EXISTS (SELECT * FROM {quiz_question_instances} WHERE question = q.id)
            ORDER BY id", array($category->id, $recurse))) {
        // Take as many of these as needed.
        while (($existingquestion = array_shift($existingquestions))
                and $randomcount > 0) {
            quiz_add_quiz_question($existingquestion->id, $quiz, $addonpage);
            $randomcount--;
        }
    }

    // If more are needed, create them.
    if ($randomcount > 0) {
        $form->questiontext = $recurse; // we use the questiontext field
                // to store the info on whether to include
                // questions in subcategories
        $form->questiontextformat = 0;
        $form->image = '';
        $form->defaultgrade = 1;
        $form->hidden = 1;
        for ($i = 0; $i < $randomcount; $i++) {
            $form->category = "$category->id,$category->contextid";
            $form->stamp = make_unique_id_code(); // Set the unique
                    //code (not to be changed)
            $question = new stdClass;
            $question->qtype = RANDOM;
            $question = $QTYPES[RANDOM]->save_question($question, $form,
                    $course);
            if(!isset($question->id)) {
                print_error('cannotinsertrandomquestion', 'quiz');
            }
            quiz_add_quiz_question($question->id, $quiz, $addonpage);
        }
    }

    $significantchangemade = true;
}
$addpagesafterquestions=array();
if($addnewpagesafterselected=optional_param('addnewpagesafterselected',null)){
    $rawgrades = (array) data_submitted();
    foreach ($rawgrades as $key => $value) {
        /// Parse input for question -> grades
        if (preg_match('!^s([0-9]+)$!', $key, $matches)){
            $addpagesafterquestions[]=$matches[1];
        }
    }
}

if ( (($addpage = optional_param('addpage', false, PARAM_INT)) OR
        !empty($addpagesafterquestions))
            and confirm_sesskey() ) { /// Move the given question up a slot

    $questions = explode(",", $quiz->questions);

    $pagebreakid='0';
    if ($addpage > 0 and isset($questions[$addpage]) ) {
        $questions=array_add_at($questions,$pagebreakid,$addpage);
        $significantchangemade = true;
    }
    foreach($addpagesafterquestions as $key=>$questionid){
        $addpage=array_search($questionid, $questions)+1;
        if ($addpage > 0 and isset($questions[$addpage]) ) {
            $pagebreakid='0';
            $questions=array_add_at($questions,$pagebreakid,$addpage);
            $significantchangemade = true;
        }
    }
    $quiz->questions = implode(",", $questions);
    $quiz->questions=quiz_clean_layout($quiz->questions);

    if (!$DB->set_field('quiz', 'questions', $quiz->questions,
            array('id' => $quiz->instance))) {
        print_error('cannotsavequestion', 'quiz');
    }

}
if (optional_param('repaginate', false, PARAM_BOOL) and confirm_sesskey()) {
    // Re-paginate the quiz
    $questionsperpage = optional_param('questionsperpage',
            $quiz->questionsperpage, PARAM_INT);
    $quiz->questions = quiz_repaginate($quiz->questions,
            $questionsperpage );
    if (!$DB->set_field('quiz', 'questions', $quiz->questions, array('id' => $quiz->id))) {
        print_error('cannotsavelayout', 'quiz');
    }
    $significantchangemade = true;
}


if ((($deleteemptypage = optional_param('deleteemptypage', false, PARAM_INT))
        !==false) and confirm_sesskey()) {
    $questions = explode(",", $quiz->questions);
    if($deleteemptypage>0){
        //it points to a value one too big due to the display logic
        $deleteemptypage--;
    }
    if( ((int)$questions[$deleteemptypage]) == 0 ){
        $questions = explode(",", $quiz->questions);
        $endpart=array_slice($questions,$deleteemptypage+1,null,true);
        $beginpart=array_slice($questions,0,$deleteemptypage,true);
        $questions=array_merge($beginpart,$endpart);
        $quiz->questions = implode(",", $questions);
        $quiz->questions=quiz_clean_layout($quiz->questions);
    }
    if (!$DB->set_field('quiz', 'questions', $quiz->questions,
            array('id' => $quiz->instance))) {
        print_error('cannotsavequestion', 'quiz');
    }
}

$deletequestions=array();
if($quizdeleteselected=optional_param('quizdeleteselected',false)){
    $rawgrades = (array) data_submitted();
    foreach ($rawgrades as $key => $value) {
        /// Parse input for question -> grades
        if (preg_match('!^s([0-9]+)$!', $key, $matches)){
            $deletequestions[]=$matches[1];
        }
    }
}

if ( (($delete = optional_param('delete', false, PARAM_INT)) !== false OR
        !empty($deletequestions)) and confirm_sesskey() ) {

    //was:     if ($delete > 0 ) {
    if ($delete !==false) {
        quiz_delete_quiz_question($delete, $quiz);
        $significantchangemade = true;
    }
    foreach($deletequestions as $key=>$questionid){
        $questions = explode(",", $quiz->questions);
        $delete=array_search($questionid, $questions);
        if ($delete !== false) {
            quiz_delete_quiz_question($delete, $quiz);
            $significantchangemade = true;
        }
    }
    $quiz->questions=quiz_clean_layout($quiz->questions);

    if (!$DB->set_field('quiz', 'questions', $quiz->questions,
            array('id' => $quiz->instance))) {
        print_error('cannotsavequestion', 'quiz');
    }

}

if (optional_param('savechanges', false, PARAM_BOOL) and confirm_sesskey()) {
    $oldquestions = explode(",", $quiz->questions); // the questions in the old order
    $questions = array(); // for questions in the new order
    $rawgrades = (array) data_submitted();
    $moveonpagequestions = array();
    $moveselectedonpage=0;
    $moveselectedonpagetop=optional_param("moveselectedonpagetop",0,PARAM_INT);
    $moveselectedonpagebottom=optional_param("moveselectedonpagebottom",0,
            PARAM_INT);
    if($moveselectedonpagetop){
        $moveselectedonpage=$moveselectedonpagetop;
    }else if($moveselectedonpagebottom){
        $moveselectedonpage=$moveselectedonpagebottom;
    }

    foreach ($rawgrades as $key => $value) {
        if (preg_match('!^q([0-9]+)$!', $key, $matches)) {
            /// Parse input for question -> grades
            $key = $matches[1];
            $quiz->grades[$key] = $value;
            quiz_update_question_instance($quiz->grades[$key], $key, $quiz->instance);

        } elseif (preg_match('!^o([0-9]+)$!', $key, $matches)) {
            /// Parse input for ordering info
            $key = $matches[1];
            // Make sure two questions don't overwrite each other.
            // If we get a second
            // question with the same position, shift the second one
            // along to the next gap.
            while (array_key_exists($value, $questions)) {
                $value++;
            }
            $questions[$value] = $oldquestions[$key];

        } elseif (preg_match('!^s([0-9]+)$!', $key, $matches)){
            // Parse input for selected questions
            // (add new pages after questions in quiz)
            $key = $matches[1];
            if($moveselectedonpage){
                $moveonpagequestions[]=$key;
            }
        }
    }
    // If ordering info was given, reorder the questions
    if ($questions) {
        ksort($questions);
        $quiz->questions = implode(",", $questions);
        $quiz->questions .=",0";
        $quiz->questions=quiz_clean_layout($quiz->questions);

    }
    //get a list of questions to move, later to be added in the appropriate
    //place in the string
    if($moveonpagequestions){
        $questions = explode(",", $quiz->questions);
        foreach($moveonpagequestions as $page=>$question){
            //remove the questions from their original positions first
            while(($delpos=array_search($question,$questions))!==FALSE){
                //in case there are multiple instances because of an error, remove all
                unset($questions[$delpos]);
            }
        }
        //reindex
        foreach($questions as $question){
            $newquestions[]=$question;
        }
        $questions=$newquestions;
        
        //find all pagebreaks
        $pagecount=quiz_number_of_pages($quiz->questions);
        if($moveselectedonpage>$pagecount){
            // move to the last page is a page beyond last page was requested
            $moveselectedonpage=$pagecount;
        }
        if($moveselectedonpage<1){
            $moveselectedonpage=1;
        }
        $pagebreakpositions=array_keys($questions,0);
        //move to the end of the selected page
        $moveselectedpos=$pagebreakpositions[$moveselectedonpage-1];
        //array_reverse($moveonpagequestions);
        foreach($moveonpagequestions as $question){
            $questions=array_add_at($questions,$question,$moveselectedpos);
            //place the next one after this one:
            $moveselectedpos++;
        }
        $quiz->questions=implode(",",$questions);
    }
    if($moveonpagequestions or $questions){
        if (!$DB->set_field('quiz', 'questions', $quiz->questions,
                array('id' => $quiz->instance))) {
            print_error('cannotsavequestion', 'quiz');
        }
    }
    // If rescaling is required save the new maximum
    $maxgrade = optional_param('maxgrade', -1, PARAM_NUMBER);
    if ($maxgrade >= 0) {
        if (!quiz_set_grade($maxgrade, $quiz)) {
            print_error('cannotsetgrade', 'quiz');
        }
    }

    $significantchangemade = true;
}
/// Delete any teacher preview attempts if the quiz has been modified
if ($significantchangemade) {
    $previewattempts = $DB->get_records_select('quiz_attempts',
             'quiz = ? AND preview = 1', array($quiz->id));
    if ($previewattempts) {
        foreach ($previewattempts as $attempt) {
            quiz_delete_attempt($attempt, $quiz);
        }
    }
    quiz_update_sumgrades($quiz);
    redirect($thispageurl->out());
}

$questionbank->process_actions($thispageurl, $cm);

/// all commands have been dealt with, now print the page

if (isset($quiz->instance) and $DB->record_exists_select('quiz_attempts',
        "quiz = ? AND preview = '0'", array($quiz->instance))){
    $questionbank->set_quiz_has_attempts(true);
}

// Print the header.
$questionbankmanagement='<a href="'.$CFG->wwwroot.
        '/question/edit.php?courseid='.$course->id.'">'.
        get_string("questionbankmanagement","quiz").'</a> ';
$strupdatemodule = has_capability('moodle/course:manageactivities',
        $contexts->lowest()) ?
        update_module_button($cm->id, $course->id,
        get_string('modulename', 'quiz')) :
        "";
$navigation = build_navigation($pagetitle, $cm);
$localcss= '<link rel="stylesheet" type="text/css" href="'.$CFG->wwwroot.
        '/lib/yui/container/assets/container.css" />';
print_header_simple($pagetitle, '', $navigation, "", $localcss,true,
        $questionbankmanagement.$strupdatemodule);
//TODO: these skip links really need to be right after the opening of the body element,
// and preferably implemented in an <ul> element. See MDL-17730.
echo '<a href="#questionbank" class="skip">Question bank</a> '.
        '<a href="#quizcontentsblock" class="skip">Quiz contents</a>';
// Initialise the JavaScript.
$quizeditconfig = new stdClass;
$quizeditconfig->url = $thispageurl->out(false, array('qbanktool' => '0'));
$quizeditconfig->dialoglisteners =array();
$numberoflisteners = max(quiz_number_of_pages($quiz->questions), 1);
for ($pageiter = 1; $pageiter <= $numberoflisteners; $pageiter++) {
    $quizeditconfig->dialoglisteners[] = 'addrandomdialoglaunch_' . $pageiter;
}
print_js_config($quizeditconfig, 'quiz_edit_config');
require_js('mod/quiz/edit.js');

// Print the tabs.
$mode = 'editq';
$currenttab="edit";
if($quiz_reordertool){
    $mode="reorder";
}
include('tabs.php');

if($quiz_qbanktool){
    $bankclass="";
    $quizcontentsclass="";
}else{
    $bankclass="collapsed";
    $quizcontentsclass="quizwhenbankcollapsed";
}
print_side_block_start(get_string('questionbankcontents','quiz').
        ' <a href="'.
$thispageurl->out(false,array('qbanktool'=>'1')).
       '" id="showbankcmd">['.get_string("show").
       ']</a>
       <a href="'.$thispageurl->out(false,array('qbanktool'=>'0')).
       '" id="hidebankcmd">['.get_string("hide").
       ']</a>
       ', array("class"=>"questionbankwindow $bankclass"));

echo '<span id="questionbank"></span>';
echo '<div class="container">';
echo '<div id="module" class="module">';
echo '<div class="bd">';
$questionbank->display('editq',
        $pagevars['qpage'],
        $pagevars['qperpage'], $pagevars['qsortorder'],
        $pagevars['qsortorderdecoded'],
        $pagevars['cat'], $pagevars['recurse'], $pagevars['showhidden'],
        $pagevars['showquestiontext']);
echo '</div> <!-- end .bd -->';
echo '</div> <!-- end .module -->';
echo '</div> <!-- end .container -->';
print_side_block_end();

if (!$quizname = $DB->get_field($cm->modname, 'name', array('id'=>$cm->instance))) {
    print_error('cannotmodulename');
}

echo '<div class="quizcontents '.$quizcontentsclass.'" id="quizcontentsblock">';
$questionsperpagebool = ($quiz->questionsperpage < 1) ? 0 : 1;
if($questionsperpagebool){
    $repaginatingdisabledhtml='disabled="disabled"';
    $repaginatingdisabled=true;
}else{
    $repaginatingdisabledhtml='';
    $repaginatingdisabled=false;
}
if($quiz_reordertool){
    echo '<div class="repaginatecommand"><button id="repaginatecommand" '.$repaginatingdisabledhtml.'>'.
            get_string("repaginatecommand","quiz").'...</button>';
    echo '</div>';
}
print_heading($pagetitle.": ".$quizname, 'left', 2);
helpbutton("editconcepts", get_string("basicideasofquiz","quiz"), "quiz",
        true,get_string("basicideasofquiz","quiz"));

$notifystring="";
if($quiz_has_attempts){
    $string=get_string('cannoteditafterattempts', 'quiz');
    $string.='<br /><a href="report.php?mode=overview&amp;id=' . $cm->id . '">' .
        quiz_num_attempt_summary($quiz, $cm) . '</a><br />' ;
    $notifystring.=notify($string,$style='notifyproblem', $align='center', $return=true);
}
if($questionsperpagebool && $quiz_reordertool){
    $updateurl=new moodle_url("$CFG->wwwroot/course/mod.php",
            array("return"=>"true","update"=>$quiz->cmid, "sesskey"=>sesskey()));
    $linkstring = '<a href="'.$updateurl->out().'">';
    $linkstring.=get_string('updatethis', '', get_string('modulename', 'quiz'));
    $linkstring.='</a>';
    $string=get_string('questionsperpageselected', 'quiz', $linkstring);
    $notifystring.=notify($string,$style='notifyproblem', $align='center', $return=true);
}
if($quiz->shufflequestions && $quiz_reordertool){
    $updateurl=new moodle_url("$CFG->wwwroot/course/mod.php",
            array("return"=>"true","update"=>$quiz->cmid, "sesskey"=>sesskey()));
    $linkstring = '<a href="'.$updateurl->out().'">';
    $linkstring.=get_string('updatethis', '', get_string('modulename', 'quiz'));
    $linkstring.='</a>';
    $string=get_string('shufflequestionsselected', 'quiz',$linkstring);
    $notifystring.=notify($string,$style='notifyproblem', $align='center', $return=true);
}
if(!empty($notifystring)){
    //TODO: make the box closable so it is not in the way
    print_box_start();
    echo $notifystring;
    print_box_end();
}

if($quiz_reordertool){
    $perpage= array();
    $perpage[0] = get_string('allinone', 'quiz');
    for ($i=1; $i<=50; ++$i) {
        $perpage[$i] = $i;
    }
    $gostring=get_string('go');
    echo '<div id="repaginatedialog"><div class="hd">';
    echo get_string("repaginatecommand","quiz");
    echo '</div><div class="bd">';
    echo '<form action="edit.php" method="post">';
    echo '<fieldset class="invisiblefieldset">';
    echo $thispageurl->hidden_params_out();
    echo '<input type="hidden" name="sesskey" value="'.sesskey().'" />';
    //YUI does not submit the value of the submit button so
            //we need to add the value:
    echo '<input type="hidden" name="repaginate" value="'.$gostring.'" />';
    print_string('repaginate', 'quiz',
            choose_from_menu($perpage, 'questionsperpage',
            $quiz->questionsperpage, '', '', '', true,$repaginatingdisabled));
    echo '<div class="quizquestionlistcontrols">';
    echo ' <input type="submit" name="repaginate" value="'. $gostring .'" '.$repaginatingdisabledhtml.' />';
    echo '</div></fieldset></form></div></div>';
}
$tabindex=0;

if(!$quiz_reordertool){
    quiz_print_grading_form($quiz, $thispageurl, $tabindex);
}
quiz_print_status_bar($quiz);
?>
<div class="<?php echo $currenttab; ?>">
<?php quiz_print_question_list($quiz, $thispageurl, true,
        $quiz_reordertool, $quiz_qbanktool, $quiz_has_attempts); ?>
</div>
<?php

// Close <div class="quizcontents">:
echo '</div>';

if(!$quiz_reordertool){
    // display category adding UI
    ?>
<div id="randomquestiondialog">
<div class="hd"><?php print_string("addrandomquestiontoquiz","quiz",$quizname); ?>
<span id="pagenumber"><!-- TODO: insert pagenumber here via javascript -->
</span>
</div>
<div class="bd"><?php
$qcobject->display_randomquestion_user_interface();
?></div>
</div>
    <?php
}
print_footer($course);
?>