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454 lines
15 KiB
454 lines
15 KiB
<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* Plays the game bookquiz.
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*
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* @package mod_game
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* @copyright 2007 Vasilis Daloukas
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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defined('MOODLE_INTERNAL') || die();
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/**
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* Plays the game bookquiz.
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*
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* @param int $id
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* @param stdClass $game
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* @param stdClass $attempt
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* @param stdClass $bookquiz
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* @param int $chapterid
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* @param stdClass $context
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*/
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function game_bookquiz_continue( $id, $game, $attempt, $bookquiz, $chapterid, $context) {
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if ($attempt != false and $bookquiz != false) {
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return game_bookquiz_play( $id, $game, $attempt, $bookquiz, $chapterid, $context);
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}
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if ($attempt == false) {
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$attempt = game_addattempt( $game);
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}
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$bookquiz = new stdClass();
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$bookquiz->lastchapterid = 0;
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$bookquiz->id = $attempt->id;
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$bookquiz->bookid = $game->bookid;
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if ( !game_insert_record( 'game_bookquiz', $bookquiz)) {
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print_error( 'game_bookquiz_continue: error inserting in game_bookquiz');
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}
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return game_bookquiz_play( $id, $game, $attempt, $bookquiz, 0, $context);
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}
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/**
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* Plays the game bookquiz.
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*
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* @param int $id
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* @param stdClass $game
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* @param stdClass $attempt
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* @param stdClass $bookquiz
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* @param int $chapterid
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* @param stdClass $context
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*/
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function game_bookquiz_play( $id, $game, $attempt, $bookquiz, $chapterid, $context) {
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global $DB, $OUTPUT, $cm;
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if ($bookquiz->lastchapterid == 0) {
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game_bookquiz_play_computelastchapter( $game, $bookquiz);
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if ($bookquiz->lastchapterid == 0) {
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print_error( get_string( 'bookquiz_empty', 'game'));
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}
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}
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if ($chapterid == 0) {
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$chapterid = $bookquiz->lastchapterid;
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} else {
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if (($DB->set_field( 'game_bookquiz', 'lastchapterid', $chapterid, array( 'id' => $bookquiz->id))) == false) {
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print_error( "Can't update table game_bookquiz with lastchapterid to $chapterid");
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}
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}
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$book = $DB->get_record( 'book', array('id' => $game->bookid));
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if (!$chapter = $DB->get_record( 'book_chapters', array('id' => $chapterid))) {
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print_error('Error reading book chapters.');
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}
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$select = "bookid = $game->bookid AND hidden = 0";
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$chapters = $DB->get_records_select('book_chapters', $select, null, 'pagenum', 'id, pagenum, subchapter, title, hidden');
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$okchapters = array();
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if (($recs = $DB->get_records( 'game_bookquiz_chapters', array( 'attemptid' => $attempt->id))) != false) {
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foreach ($recs as $rec) {
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// The 1 means correct answer.
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$okchapters[ $rec->chapterid] = 1;
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}
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}
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// The 2 means current.
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$showquestions = false;
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$a = array( 'gameid' => $game->id, 'chapterid' => $chapterid);
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if (($questions = $DB->get_records( 'game_bookquiz_questions', $a)) === false) {
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if (!array_key_exists( $chapterid, $okchapters)) {
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$okchapters[ $chapterid] = 1;
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$newrec = new stdClass();
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$newrec->attemptid = $attempt->id;
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$newrec->chapterid = $chapterid;
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if (!$DB->insert_record( 'game_bookquiz_chapters', $newrec)) {
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print_error( "Can't insert to table game_bookquiz_chapters");
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}
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}
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} else {
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// Have to select random one question.
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$questionid = game_bookquiz_selectrandomquestion( $questions);
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if ($questionid != 0) {
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$showquestions = true;
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}
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}
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// Prepare chapter navigation icons.
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$previd = null;
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$nextid = null;
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$found = 0;
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$scoreattempt = 0;
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$lastid = 0;
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foreach ($chapters as $ch) {
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$scoreattempt++;
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if ($found) {
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$nextid = $ch->id;
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break;
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}
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if ($ch->id == $chapter->id) {
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$found = 1;
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}
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if (!$found) {
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$previd = $ch->id;
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}
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$lastid = $ch->id;
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}
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if ($ch == current($chapters)) {
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$nextid = $ch->id;
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}
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if (count( $chapters)) {
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$scoreattempt = ($scoreattempt - 1) / count( $chapters);
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}
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$chnavigation = '';
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if ($previd) {
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$chnavigation .= '<a title="'.get_string('navprev', 'book').'" href="attempt.php?id='.$id.
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'&chapterid='.$previd.'"><img src="'.$OUTPUT->pix_url('bookquiz/nav_prev', 'mod_game').
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'" class="bigicon" alt="'.get_string('navprev', 'book').'"/></a>';
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} else {
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$chnavigation .= '<img src="'.$OUTPUT->pix_url('bookquiz/nav_prev_dis', 'mod_game').'" class="bigicon" alt="" />';
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}
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$nextbutton = '';
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if ($nextid) {
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if (!$showquestions) {
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$chnavigation .= '<a title="'.get_string('navnext', 'book').'" href="attempt.php?id='.
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$id.'&chapterid='.$nextid.'"><img src="'.
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$OUTPUT->pix_url('bookquiz/nav_next', 'mod_game').'" class="bigicon" alt="'.get_string('navnext', 'book').'" ></a>';
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$nextbutton = '<center>';
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$nextbutton .= '<form name="form" method="get" action="attempt.php">';
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$nextbutton .= '<input type="hidden" name="id" value="'.$id.'" >'."\r\n";
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$nextbutton .= '<input type="hidden" name="chapterid" value="'.$nextid.'" >'."\r\n";
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$nextbutton .= '<input type="submit" value="'.get_string( 'continue').'">';
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$nextbutton .= '</center>';
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$showquestions = false;
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game_updateattempts_maxgrade( $game, $attempt, $scoreattempt, 0);
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}
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} else {
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game_updateattempts_maxgrade( $game, $attempt, 1, 0);
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$sec = '';
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if (!isset( $cm)) {
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$cm = get_coursemodule_from_instance('game', $game->id, $game->course);
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}
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if ($section = $DB->get_record('course_sections', array( 'id' => $cm->section))) {
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$sec = $section->section;
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}
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if (! $cm = $DB->get_record('course_modules', array( 'id' => $id))) {
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print_error("Course Module ID was incorrect id=$id");
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}
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$chnavigation .= '<a title="'.get_string('navexit', 'book').'" href="attempt.php?id='.
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$id.'&chapterid='.$lastid.'><img src="'.$OUTPUT->pix_url('bookquiz/nav_exit', 'mod_game').
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'" class="bigicon" alt="'.get_string('navexit', 'book').'" /></a>';
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}
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require( 'toc.php');
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$tocwidth = '10%';
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if ($showquestions) {
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if ($game->param3 == 0) {
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game_bookquiz_showquestions( $id, $questionid, $chapter->id, $nextid, $scoreattempt, $game, $context);
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}
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}
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?>
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<table border="0" cellspacing="0" width="100%" valign="top" cellpadding="2">
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<!-- subchapter title and upper navigation row //-->
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<tr>
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<td width="<?php echo 10;?>" valign="bottom">
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</td>
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<td valign="top">
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<table border="0" cellspacing="0" width="100%" valign="top" cellpadding="0">
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<tr>
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<td align="right"><?php echo $chnavigation ?></td>
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</tr>
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</table>
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</td>
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</tr>
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<!-- toc and chapter row //-->
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<tr>
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<td width="<?php echo $tocwidth ?>" valign="top" align="left">
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<?php
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echo $OUTPUT->box_start('generalbox');
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echo $toc;
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echo $OUTPUT->box_end();
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?>
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</td>
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<td valign="top" align="left">
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<?php
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echo $OUTPUT->box_start('generalbox');
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$content = '';
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if (!$book->customtitles) {
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if ($currsubtitle == ' ') {
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$content .= '<p class="book_chapter_title">'.$currtitle.'</p>';
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} else {
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$content .= '<p class="book_chapter_title">'.$currtitle.'<br />'.$currsubtitle.'</p>';
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}
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}
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$cmbook = get_coursemodule_from_instance( 'book', $game->bookid, $game->course);
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$modcontext = game_get_context_module_instance( $cmbook->id);
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$content .= game_filterbook( $chapter->content, $chapter->id, $modcontext->id, $game->course);
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$nocleanoption = new stdClass;
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$nocleanoption->noclean = true;
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echo '<div>';
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if ($nextbutton != '') {
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echo $nextbutton;
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}
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echo format_text($content, FORMAT_HTML, $nocleanoption);
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if ($nextbutton != '') {
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echo $nextbutton;
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}
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echo '</div>';
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echo $OUTPUT->box_end();
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// Lower navigation.
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echo '<p align="right">'.$chnavigation.'</p>';
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?>
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</td>
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</tr>
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</table>
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<?php
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if ($showquestions) {
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if ($game->param3 != 0) {
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game_bookquiz_showquestions( $id, $questionid, $chapter->id, $nextid, $scoreattempt, $game, $context);
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}
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}
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}
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/**
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* Computes the last chapter.
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*
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* @param stdClass $game
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* @param stdClass $bookquiz
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*/
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function game_bookquiz_play_computelastchapter( $game, &$bookquiz) {
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global $DB;
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if ($game->bookid == 0) {
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print_error( 'Not defined a book on this game');
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}
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$pagenum = $DB->get_field( 'book_chapters', 'min(pagenum) as p', array('bookid' => $game->bookid));
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if ($pagenum) {
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$bookquiz->lastchapterid = $DB->get_field( 'book_chapters', 'id', array('bookid' => $game->bookid, 'pagenum' => $pagenum));
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if ($bookquiz->lastchapterid) {
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// Update the data in table game_bookquiz.
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if (($DB->set_field( 'game_bookquiz', 'lastchapterid', $bookquiz->lastchapterid,
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array('id' => $bookquiz->id))) == false) {
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print_error( "Can't update table game_bookquiz with lastchapterid to $bookquiz->lastchapterid");
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}
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}
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}
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}
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/**
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* Shows questions.
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*
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* @param int $id
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* @param int $questionid
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* @param int $chapterid
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* @param int $nextchapterid
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* @param int $scoreattempt
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* @param stdClass $game
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* @param stdClass $context
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*/
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function game_bookquiz_showquestions( $id, $questionid, $chapterid, $nextchapterid, $scoreattempt, $game, $context) {
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$onlyshow = false;
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$showsolution = false;
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$questionlist = $questionid;
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$questions = game_sudoku_getquestions( $questionlist);
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global $CFG;
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// Start the form.
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echo "<form id=\"responseform\" method=\"post\" action=\"{$CFG->wwwroot}/mod/game/attempt.php\" ".
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" onclick=\"this.autocomplete='off'\">\n";
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if (($onlyshow === false) and ($showsolution === false)) {
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echo "<center><input type=\"submit\" name=\"finishattempt\" value=\"".get_string('sudoku_submit', 'game')."\"></center>\n";
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}
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// Add a hidden field with the quiz id.
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echo '<div>';
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echo '<input type="hidden" name="id" value="' . s($id) . "\" />\n";
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echo '<input type="hidden" name="action" value="bookquizcheck" />';
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echo '<input type="hidden" name="chapterid" value="'.$chapterid.'" />';
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echo '<input type="hidden" name="scoreattempt" value="'.$scoreattempt.'" />';
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echo '<input type="hidden" name="nextchapterid" value="'.$nextchapterid.'" />';
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// Print all the questions.
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// Add a hidden field with questionids.
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echo '<input type="hidden" name="questionids" value="'.$questionlist."\" />\n";
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$number = 0;
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foreach ($questions as $question) {
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game_print_question( $game, $question, $context);
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}
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echo "</div>";
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// Finish the form.
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echo '</div>';
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if (($onlyshow === false) and ($showsolution === false)) {
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echo "<center><input type=\"submit\" name=\"finishattempt\" value=\"".get_string('sudoku_submit', 'game')."\"></center>\n";
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}
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echo "</form>\n";
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}
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/**
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* Selects random one question from the input list.
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*
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* @param array $questions
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*
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* @return the position of the random question.
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*/
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function game_bookquiz_selectrandomquestion( $questions) {
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global $DB;
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$categorylist = '';
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if ($questions == false) {
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return 0;
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}
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foreach ($questions as $rec) {
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$categorylist .= ',' . $rec->questioncategoryid;
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}
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$select = 'category in ('.substr( $categorylist, 1). ") AND qtype in ('shortanswer', 'truefalse', 'multichoice')";
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if (($recs = $DB->get_records_select( 'question', $select, null, '', 'id,id')) == false) {
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return 0;
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}
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$a = array();
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foreach ($recs as $rec) {
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$a[ $rec->id] = $rec->id;
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}
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if (count( $a) == 0) {
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return 0;
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} else {
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return array_rand( $a);
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}
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}
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/**
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* Check if the answers are correct.
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*
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* @param int $id
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* @param stdClass $game
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* @param stdClass $attempt
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* @param stdClass $bookquiz
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* @param stdClass $context
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*/
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function game_bookquiz_check_questions( $id, $game, $attempt, $bookquiz, $context) {
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global $USER, $DB;
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$scoreattempt = optional_param('scoreattempt', 0, PARAM_INT);
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$responses = data_submitted();
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$questionlist = $responses->questionids;
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$questions = game_sudoku_getquestions( $questionlist);
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$grades = game_grade_questions( $questions);
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$scorequestion = 0;
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$scoreattempt = 0;
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$chapterid = required_param('chapterid', PARAM_INT);
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$nextchapterid = required_param('nextchapterid', PARAM_INT);
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foreach ($questions as $question) {
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if (!array_key_exists( $question->id, $grades)) {
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// No answered.
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continue;
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}
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$grade = $grades[ $question->id];
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if ($grade->grade < 0.99) {
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continue;
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}
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// Found one correct answer.
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if (!$DB->get_field( 'game_bookquiz_chapters', 'id', array( 'attemptid' => $attempt->id, 'chapterid' => $chapterid))) {
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$newrec = new stdClass();
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$newrec->attemptid = $attempt->id;
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$newrec->chapterid = $chapterid;
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if (!$DB->insert_record( 'game_bookquiz_chapters', $newrec, false)) {
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print_error( "Can't insert to table game_bookquiz_chapters");
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}
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}
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// Have to go to next page.
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$bookquiz->lastchapterid = $nextchapterid;
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$scorequestion = 1;
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break;
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}
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$query = new stdClass();
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$query->id = 0;
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$query->attemptid = $attempt->id;
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$query->gameid = $game->id;
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$query->userid = $USER->id;
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$query->sourcemodule = 'question';
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$query->questionid = $question->id;
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$query->glossaryentryid = 0;
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$query->questiontext = $question->questiontext;
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$query->timelastattempt = time();
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game_update_queries( $game, $attempt, $query, $scorequestion, '');
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game_updateattempts( $game, $attempt, $scoreattempt, 0);
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game_bookquiz_continue( $id, $game, $attempt, $bookquiz, $bookquiz->lastchapterid, $context);
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}
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