294 lines
9.5 KiB
PHP
294 lines
9.5 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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* Holt eine einzelne Frage aus der Datenbank.
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* @param int $id Die Frage-ID
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* @return array Die Fragen-Inhalte als assoziatives Array.
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*/
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function getQuestionById(int $id): array
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{
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$stmt = $GLOBALS['db']->prepare('SELECT * FROM fragen WHERE ID=?');
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$stmt->bind_param('i', $id);
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$stmt->execute();
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$result = $stmt->get_result();
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$question = $result->fetch_array(MYSQLI_ASSOC);
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return $question;
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}
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/**
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* Holt eine Liste aller Abschnitte im aktuellen Jahr
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* @return array Liste der Themenbereiche.
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*/
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function getTopics(): array
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{
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$nr = 0;
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$description = '';
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$stmt = $GLOBALS['db']->prepare('SELECT `Nr`,`Beschreibung` FROM `abschnitte` WHERE `Jahr` = ? ORDER BY `Nr`');
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$stmt->bind_param('i', $_SESSION['jahr']);
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$stmt->execute();
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$stmt->bind_result($nr, $description);
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$topics = array();
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while ($stmt->fetch()) {
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$topics[$nr] = $description;
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}
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$stmt->close();
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return $topics;
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}
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/**
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* Kopfzeile mit Informationen über Fragen-Nummer und Lernabschnitt.
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* @param int $id Frage-ID
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* @param int $nr Frage-Nummer
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* @param int $questionCount Anzahl Fragen
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* @return void
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*/
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function questionHeader(int $id, int $nr, int $questionCount): void
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{
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$section = getSingleResult('SELECT Abschnitt FROM fragen WHERE ID=? AND Jahr=?',
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array('ii', $id, $_SESSION['jahr']));
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$sectionName = getSingleResult('SELECT Beschreibung FROM abschnitte WHERE Nr=? AND Jahr=?',
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array('ii', $section, $_SESSION['jahr']));
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$GLOBALS['tpl']->addVars(Array(
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'aktuelleFrage' => $nr,
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'fragenCnt' => $questionCount,
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'abschnittNr' => $section,
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'abschnitt' => $sectionName
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));
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$GLOBALS['tpl']->parseBlock('content', 'Kopf', 'Content');
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}
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/**
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* Eine einzelne Frage mit Kopfzeile ausgeben.
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* @param int $id Frage-ID
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* @param int $nr Frage-Nummer
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* @param int $questionCount Anzahl Fragen
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* @return void
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*/
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function SingleQuestion(int $id, int $nr, int $questionCount): void
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{
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questionHeader($id, $nr, $questionCount);
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showQuestion($id);
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}
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/**
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* Fragengenerator
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*
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* Erzeugt eine Tabelle mit Frage, Antworten und Formularinformationen
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* zur übergebenen Fragen-ID
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* @param int $id Fragen-ID
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* @return void
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*/
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function showQuestion(int $id): void
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{
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// Frage aus DB holen
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$stmt = $GLOBALS['db']->prepare('SELECT * FROM fragen WHERE ID=?');
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$stmt->bind_param('i', $id);
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$stmt->execute();
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$result = $stmt->get_result();
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$question = $result->fetch_array(MYSQLI_ASSOC);
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$GLOBALS['tpl']->addVars(Array(
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'frageID' => $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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}
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else {
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$GLOBALS['tpl']->addVars('rowCnt', '3');
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$GLOBALS['tpl']->parseBlock('content', 'ThreeRows', 'Row', TRUE);
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}
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$result->close();
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$stmt->close();
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}
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/**
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* Auswertung
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*
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* Erzeugt eine Tabelle mit Frage, Antworten und Markiert richtige/falsche
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* Antworten farblich (grün=richtig, rot=falsch)
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* @param int $id Frage-ID
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* @param array $answer Antwort-Array
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* @param bool $showStatus Status anzeigen
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* @return bool true, falls korrekt beantwortet, sonst false.
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*/
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function Answer(int $id, array $answer, bool $showStatus = true): bool
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{
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// Frage aus DB holen
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$question = getQuestionById($id);
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// Einzelne Antworten aus Flag in Array splitten
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$solution = array( 1 => ( $question['Loesung'] & 0x1),
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2 => (($question['Loesung'] & 0x2) >> 1),
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3 => (($question['Loesung'] & 0x4) >> 2));
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$correct = (($solution[1] == (isset($answer[$id][1]) ? $answer[$id][1] : 0))
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&& ($solution[2] == (isset($answer[$id][2]) ? $answer[$id][2] : 0))
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&& ($solution[3] == (isset($answer[$id][3]) ? $answer[$id][3] : 0)));
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// Aufräumen
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$GLOBALS['tpl']->delHandle('antwortStatus');
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$GLOBALS['tpl']->delHandle('antwort1Loesung');
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$GLOBALS['tpl']->delHandle('antwort2Loesung');
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$GLOBALS['tpl']->delHandle('antwort3Loesung');
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$GLOBALS['tpl']->delBlockHandle('content', 'A1L');
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$GLOBALS['tpl']->delBlockHandle('content', 'A2L');
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$GLOBALS['tpl']->delBlockHandle('content', 'A3L');
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if ($showStatus) {
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if ($correct)
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$GLOBALS['tpl']->parseBlock('content', 'Status', 'Richtig');
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else
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$GLOBALS['tpl']->parseBlock('content', 'Status', 'Falsch');
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} else {
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if ($correct)
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$GLOBALS['tpl']->parseBlock('content', 'BogenStatus', 'Richtig');
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else
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$GLOBALS['tpl']->parseBlock('content', 'BogenStatus', 'Falsch');
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}
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$GLOBALS['tpl']->addVars(Array(
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'abschnittNr' => $question['Abschnitt'],
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'frageNr' => $question['Nr'],
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'frageText' => $question['Frage'],
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'antwort1Status' => $solution[1] ? 'korrekt' : 'falsch',
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'antwort2Status' => $solution[2] ? 'korrekt' : 'falsch',
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'antwort3Status' => $solution[3] ? 'korrekt' : 'falsch',
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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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}
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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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if (isset($answer[$id][1]) && $answer[$id][1] === '1') $GLOBALS['tpl']->parseBlock('content', 'A1L', 'Haken');
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if (isset($answer[$id][2]) && $answer[$id][2] === '1') $GLOBALS['tpl']->parseBlock('content', 'A2L', 'Haken');
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if (isset($answer[$id][3]) && $answer[$id][3] === '1') $GLOBALS['tpl']->parseBlock('content', 'A3L', 'Haken');
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// Anhängen per default
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$GLOBALS['tpl']->parse('content', 'antwort', TRUE, TRUE);
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return $correct;
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}
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/**
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* Brotkrumen-Navigation.
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*
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* Fügt einen Link zur Brotkrumen-Navigation hinzu.
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* @param string $page Seiten-Link
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* @param string $title Seiten-Titel
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* @return void
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*/
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function addBreadcrumb(string $page, string $title): void
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{
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$GLOBALS['tpl']->addVars(Array(
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'page' => htmlspecialchars($page),
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'pageTitle' => htmlspecialchars($title)
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));
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$GLOBALS['tpl']->parseBlock('page-body', 'Breadcrumb', 'Link', TRUE);
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}
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/**
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* Zeigt die Auflösung an.
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* @param array $frage Referenz auf das assoziative Fragen-Array
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* @return void
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*/
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function ShowAnswer(array &$frage): void
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{
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// Einzelne Antworten aus Flag in Array splitten
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$loesung = array( 1 => ( $frage['Loesung'] & 0x1),
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2 => (($frage['Loesung'] & 0x2) >> 1),
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3 => (($frage['Loesung'] & 0x4) >> 2));
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// Aufräumen
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$GLOBALS['tpl']->delHandle('antwortStatus');
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$GLOBALS['tpl']->delHandle('antwort1Loesung');
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$GLOBALS['tpl']->delHandle('antwort2Loesung');
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$GLOBALS['tpl']->delHandle('antwort3Loesung');
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$GLOBALS['tpl']->addVars(Array(
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'abschnittNr' => $frage['Abschnitt'],
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'frageNr' => $frage['Nr'],
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'frageText' => $frage['Frage'],
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'antwort1Status' => $loesung[1]?'korrekt':'falsch',
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'antwort2Status' => $loesung[2]?'korrekt':'falsch',
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'antwort3Status' => $loesung[3]?'korrekt':'falsch',
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'Antwort1' => $frage['Antwort1'],
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'Antwort2' => $frage['Antwort2'],
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'Antwort3' => $frage['Antwort3']
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));
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$GLOBALS['tpl']->delBlockHandle('content', 'A1L');
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$GLOBALS['tpl']->delBlockHandle('content', 'A2L');
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$GLOBALS['tpl']->delBlockHandle('content', 'A3L');
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if ($loesung[1]) $GLOBALS['tpl']->parseBlock('content', 'A1L', 'Haken');
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if ($loesung[2]) $GLOBALS['tpl']->parseBlock('content', 'A2L', 'Haken');
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if ($loesung[3]) $GLOBALS['tpl']->parseBlock('content', 'A3L', 'Haken');
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if ($frage['Antwort3'] == '') {
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$GLOBALS['tpl']->addVars('rowCnt', '2');
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$GLOBALS['tpl']->delBlockHandle('content', 'ThreeRows');
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}
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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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}
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