220 lines
7.8 KiB
PHP
220 lines
7.8 KiB
PHP
<?php
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/*
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* Copyright (C) 2001 Kai Blaschke <webmaster@thw-theorie.de>
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*
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* The included 'THW Thema' templates, logos and the Q&A catalog are protected
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* by copyright laws, and must not be used without the written permission
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* of the
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*
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* Bundesanstalt Technisches Hilfswerk
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* Provinzialstraße 93
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* D-53127 Bonn
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* Germany
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* E-Mail: redaktion@thw.de
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*
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* This program 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 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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 this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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/*
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*
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* Vollständiger Prüfungsbogen mit zufälligen Fragen
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*
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*/
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$GLOBALS['tpl']->parseBlock('page-body', 'NavBogen', 'Sublinks');
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$GLOBALS['tpl']->addVars('navBogen', 'current');
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if (isset($_REQUEST['create']) && $_REQUEST['create'] == '1') {
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// Neuen Bogen erstellen
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unset($_SESSION['bogen']);
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// Werte initialisieren
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$_SESSION['bogen']['StartTime'] = time();
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$_SESSION['bogen']['Fragen'] = array();
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// Anz. Abschnitte und Fragen aus der DB holen
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$sectionCount = getSingleResult('SELECT COUNT(*) FROM abschnitte WHERE Jahr = ?', array('i', $_SESSION['jahr']));
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$questionId = 0;
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$questionSection = 0;
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$stmt = $GLOBALS['db']->prepare('SELECT ID, Abschnitt FROM fragen WHERE Jahr = ? ORDER BY Abschnitt, Nr');
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$stmt->bind_param('i', $_SESSION['jahr']);
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$stmt->execute();
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$stmt->bind_result($questionId, $questionSection);
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// Fragen in Array übertragen
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while ($stmt->fetch()) {
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$fragen[$questionId] = $questionSection;
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}
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$stmt->close();
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// Gesamtanzahl Fragen
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$count_ab = array_count_values($fragen);
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// Eine Frage pro Themengebiet aus der DB holen
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for ($i = 1; $i <= $sectionCount; $i++) {
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$nr = rand(1, $count_ab[$i]);
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$id = getSingleResult('SELECT ID FROM fragen WHERE Nr = ? AND Abschnitt = ? AND Jahr = ?',
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array('iii', $nr, $i, $_SESSION['jahr']));
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array_push($_SESSION['bogen']['Fragen'], (int)$id);
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// Frage entfernen
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unset($fragen[$id]);
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}
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// Restliche Fragen zufällig auffüllen.
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// Dazu verbliebene Keys von $fragen als Values in neues Array $fragen2 kopieren,
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// da shuffle() die Keys verwirft!
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$fragen2 = array();
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foreach ($fragen as $key => $value) {
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array_push($fragen2, $key);
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}
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shuffle($fragen2);
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for ($i = 0; $i < 40 - $sectionCount; $i++) {
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array_push($_SESSION['bogen']['Fragen'], array_shift($fragen2));
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}
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// Fragen erneut mischen
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shuffle($_SESSION['bogen']['Fragen']);
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}
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if (isset($_SESSION['bogen'])) {
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if (isset($_POST['antwort'])) {
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// Fragen beantwortet
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$richtig = 0;
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$falsch = 0;
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$fragen_cnt = count($_SESSION['bogen']['Fragen']);
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$zeit = time() - $_SESSION['bogen']['StartTime'];
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for ($i = 0; $i < $fragen_cnt; $i++) {
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$id = $_SESSION['bogen']['Fragen'][$i];
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$solutionBitmask = getSingleResult('SELECT `Loesung` FROM `fragen` WHERE `ID` = ?',
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array('i', $id));
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$loesung = array(1 => ($solutionBitmask & 0x1),
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2 => (($solutionBitmask & 0x2) >> 1),
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3 => (($solutionBitmask & 0x4) >> 2));
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if (isset($_POST['antwort'][$id])) {
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$korrekt = (($loesung[1] == (isset($_POST['antwort'][$id][1]) ? $_POST['antwort'][$id][1] : 0))
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&& ($loesung[2] == (isset($_POST['antwort'][$id][2]) ? $_POST['antwort'][$id][2] : 0))
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&& ($loesung[3] == (isset($_POST['antwort'][$id][3]) ? $_POST['antwort'][$id][3] : 0)));
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} else {
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$korrekt = false;
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}
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if ($korrekt) {
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$_SESSION["stats"]['Fragen_Richtig']++;
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$richtig++;
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} else {
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$_SESSION["stats"]['Fragen_Falsch']++;
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$falsch++;
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}
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$_SESSION["stats"]['Fragen_Bisher']++;
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}
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$_SESSION["stats"]['Boegen_Bisher']++;
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if (($richtig / $fragen_cnt) >= 0.8)
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$_SESSION["stats"]['Boegen_Bestanden']++;
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else
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$_SESSION["stats"]['Boegen_Durchgefallen']++;
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$GLOBALS['db']->query('UPDATE statistik SET fragen=fragen+' . $fragen_cnt
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. ',richtig=richtig+' . $richtig
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. ',falsch=falsch+' . $falsch
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. ',boegen=boegen+1'
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. ',bestanden=bestanden+' . (($richtig / $fragen_cnt) >= 0.8 ? 1 : 0)
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. ',durchgefallen=durchgefallen+' . (($richtig / $fragen_cnt) < 0.8 ? 1 : 0));
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$GLOBALS['tpl']->addTemplates('content', 'bogen-ende');
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$GLOBALS['tpl']->addVars(array(
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'anzFragen' => count($_SESSION['bogen']['Fragen']),
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'zeit' => sprintf('%02d:%02d\'%02d', $zeit / 3600, ($zeit / 60) % 60, $zeit % 60),
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'fragenRichtig' => $richtig,
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'fragenRichtigQuote' => sprintf('%.2f %%', $richtig / $fragen_cnt * 100),
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'fragenFalsch' => $falsch,
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'fragenFalschQuote' => sprintf('%.2f %%', $falsch / $fragen_cnt * 100)
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));
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if (($richtig / $fragen_cnt) >= 0.8) {
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$GLOBALS['tpl']->parseBlock('content', 'Bestanden', 'Ja');
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}
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else {
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$GLOBALS['tpl']->parseBlock('content', 'Bestanden', 'Nein');
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}
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for ($i = 0; $i < count($_SESSION['bogen']['Fragen']); $i++) {
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if ($i > 0 && $i % 10 == 0) {
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// 'Nach oben'-Zeile an Handle anhängen
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$GLOBALS['tpl']->parseBlock('content', 'Aufloesung', 'Topline', TRUE);
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}
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Answer($_SESSION['bogen']['Fragen'][$i], $_POST['antwort'], FALSE);
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$GLOBALS['tpl']->parseBlock('content', 'Aufloesung', 'Antwort', TRUE, TRUE);
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}
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unset($_SESSION['bogen']);
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} else {
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// Fragen anzeigen
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$GLOBALS['tpl']->addTemplates(array(
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'content' => 'bogen-fragen'
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));
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$GLOBALS['tpl']->addVars(array(
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'zeit' => date('G:i', $_SESSION['bogen']['StartTime'])
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));
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for ($i = 0; $i < count($_SESSION['bogen']['Fragen']); $i++) {
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if ($i > 0 && $i % 10 == 0) {
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$GLOBALS['tpl']->parseBlock('content', 'Bogen', 'Topline', TRUE);
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}
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// Frage aus DB holen
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$question = getQuestionById($_SESSION['bogen']['Fragen'][$i]);
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$GLOBALS['tpl']->addVars(array(
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'frageIndex' => $i + 1,
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'frageID' => $question['ID'],
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'frageNr' => $question['Nr'],
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'abschnittNr' => $question['Abschnitt'],
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'frageText' => $question['Frage'],
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'Antwort1' => $question['Antwort1'],
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'Antwort2' => $question['Antwort2'],
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'Antwort3' => $question['Antwort3']
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));
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if ($question['Antwort3'] == '') {
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$GLOBALS['tpl']->addVars('rowCnt', '2');
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$GLOBALS['tpl']->delBlockHandle('content', 'ThreeRows');
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} else {
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$GLOBALS['tpl']->addVars('rowCnt', '3');
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$GLOBALS['tpl']->parseBlock('content', 'ThreeRows', 'Row');
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}
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$GLOBALS['tpl']->parseBlock('content', 'Bogen', 'Frage', TRUE, TRUE);
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}
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}
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} else {
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$GLOBALS['tpl']->addVars('navBogenNeu', 'current');
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$GLOBALS['tpl']->addTemplates(array('content' => 'bogen-start'));
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}
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