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<?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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* Short answer
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*
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* @package mod_lesson
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* @copyright 2009 Sam Hemelryk
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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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/** Short answer question type */
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define("LESSON_PAGE_SHORTANSWER", "1");
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class lesson_page_type_shortanswer extends lesson_page {
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protected $type = lesson_page::TYPE_QUESTION;
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protected $typeidstring = 'shortanswer';
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protected $typeid = LESSON_PAGE_SHORTANSWER;
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protected $string = null;
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public function get_typeid() {
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return $this->typeid;
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}
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public function get_typestring() {
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if ($this->string===null) {
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$this->string = get_string($this->typeidstring, 'lesson');
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}
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return $this->string;
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}
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public function get_idstring() {
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return $this->typeidstring;
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}
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public function display($renderer, $attempt) {
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global $USER, $CFG, $PAGE;
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$mform = new lesson_display_answer_form_shortanswer($CFG->wwwroot.'/mod/lesson/continue.php', array('contents'=>$this->get_contents(), 'lessonid'=>$this->lesson->id));
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$data = new stdClass;
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$data->id = $PAGE->cm->id;
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$data->pageid = $this->properties->id;
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if (isset($USER->modattempts[$this->lesson->id])) {
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$data->answer = s($attempt->useranswer);
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}
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$mform->set_data($data);
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// Trigger an event question viewed.
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$eventparams = array(
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'context' => context_module::instance($PAGE->cm->id),
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'objectid' => $this->properties->id,
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'other' => array(
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'pagetype' => $this->get_typestring()
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)
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);
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$event = \mod_lesson\event\question_viewed::create($eventparams);
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$event->trigger();
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return $mform->display();
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}
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/**
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* Creates answers for this page type.
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*
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* @param object $properties The answer properties.
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*/
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public function create_answers($properties) {
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if (isset($properties->enableotheranswers) && $properties->enableotheranswers) {
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$properties->response_editor = array_values($properties->response_editor);
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$properties->jumpto = array_values($properties->jumpto);
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$properties->score = array_values($properties->score);
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$wrongresponse = end($properties->response_editor);
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$wrongkey = key($properties->response_editor);
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$properties->answer_editor[$wrongkey] = LESSON_OTHER_ANSWERS;
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}
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parent::create_answers($properties);
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}
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/**
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* Update the answers for this page type.
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*
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* @param object $properties The answer properties.
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* @param context $context The context for this module.
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* @param int $maxbytes The maximum bytes for any uploades.
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*/
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public function update($properties, $context = null, $maxbytes = null) {
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if ($properties->enableotheranswers) {
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$properties->response_editor = array_values($properties->response_editor);
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$properties->jumpto = array_values($properties->jumpto);
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$properties->score = array_values($properties->score);
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$wrongresponse = end($properties->response_editor);
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$wrongkey = key($properties->response_editor);
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$properties->answer_editor[$wrongkey] = LESSON_OTHER_ANSWERS;
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}
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parent::update($properties, $context, $maxbytes);
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}
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public function check_answer() {
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global $CFG;
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$result = parent::check_answer();
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$mform = new lesson_display_answer_form_shortanswer($CFG->wwwroot.'/mod/lesson/continue.php', array('contents'=>$this->get_contents()));
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$data = $mform->get_data();
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require_sesskey();
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$studentanswer = trim($data->answer);
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if ($studentanswer === '') {
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$result->noanswer = true;
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return $result;
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}
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$i=0;
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$answers = $this->get_answers();
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foreach ($answers as $answer) {
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$answer = parent::rewrite_answers_urls($answer, false);
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$i++;
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// Applying PARAM_TEXT as it is applied to the answer submitted by the user.
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$expectedanswer = clean_param($answer->answer, PARAM_TEXT);
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$ismatch = false;
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$markit = false;
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$useregexp = ($this->qoption);
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if ($useregexp) { //we are using 'normal analysis', which ignores case
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$ignorecase = '';
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if (substr($expectedanswer, -2) == '/i') {
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$expectedanswer = substr($expectedanswer, 0, -2);
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$ignorecase = 'i';
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}
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} else {
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$expectedanswer = str_replace('*', '%@@%@@%', $expectedanswer);
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$expectedanswer = preg_quote($expectedanswer, '/');
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$expectedanswer = str_replace('%@@%@@%', '.*', $expectedanswer);
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}
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// see if user typed in any of the correct answers
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if ((!$this->lesson->custom && $this->lesson->jumpto_is_correct($this->properties->id, $answer->jumpto)) or ($this->lesson->custom && $answer->score > 0) ) {
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if (!$useregexp) { // we are using 'normal analysis', which ignores case
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if (preg_match('/^'.$expectedanswer.'$/i',$studentanswer)) {
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$ismatch = true;
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}
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} else {
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if (preg_match('/^'.$expectedanswer.'$/'.$ignorecase,$studentanswer)) {
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$ismatch = true;
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}
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}
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if ($ismatch == true) {
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$result->correctanswer = true;
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}
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} else {
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if (!$useregexp) { //we are using 'normal analysis'
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// see if user typed in any of the wrong answers; don't worry about case
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if (preg_match('/^'.$expectedanswer.'$/i',$studentanswer)) {
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$ismatch = true;
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}
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} else { // we are using regular expressions analysis
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$startcode = substr($expectedanswer,0,2);
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switch ($startcode){
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//1- check for absence of required string in $studentanswer (coded by initial '--')
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case "--":
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$expectedanswer = substr($expectedanswer,2);
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if (!preg_match('/^'.$expectedanswer.'$/'.$ignorecase,$studentanswer)) {
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$ismatch = true;
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}
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break;
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//2- check for code for marking wrong strings (coded by initial '++')
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case "++":
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$expectedanswer=substr($expectedanswer,2);
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$markit = true;
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//check for one or several matches
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if (preg_match_all('/'.$expectedanswer.'/'.$ignorecase,$studentanswer, $matches)) {
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$ismatch = true;
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$nb = count($matches[0]);
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$original = array();
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$marked = array();
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$fontStart = '<span class="incorrect matches">';
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$fontEnd = '</span>';
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for ($i = 0; $i < $nb; $i++) {
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array_push($original,$matches[0][$i]);
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array_push($marked,$fontStart.$matches[0][$i].$fontEnd);
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}
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$studentanswer = str_replace($original, $marked, $studentanswer);
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}
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break;
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//3- check for wrong answers belonging neither to -- nor to ++ categories
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default:
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if (preg_match('/^'.$expectedanswer.'$/'.$ignorecase,$studentanswer, $matches)) {
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$ismatch = true;
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}
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break;
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}
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$result->correctanswer = false;
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}
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}
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if ($ismatch) {
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$result->newpageid = $answer->jumpto;
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$options = new stdClass();
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$options->para = false;
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$options->noclean = true;
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$result->response = format_text($answer->response, $answer->responseformat, $options);
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$result->answerid = $answer->id;
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break; // quit answer analysis immediately after a match has been found
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}
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}
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// We could check here to see if we have a wrong answer jump to use.
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if ($result->answerid == 0) {
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// Use the all other answers jump details if it is set up.
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$lastanswer = end($answers);
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// Double check that this is the @#wronganswer#@ answer.
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if (strpos($lastanswer->answer, LESSON_OTHER_ANSWERS) !== false) {
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$otheranswers = end($answers);
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$result->newpageid = $otheranswers->jumpto;
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$options = new stdClass();
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$options->para = false;
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$result->response = format_text($otheranswers->response, $otheranswers->responseformat, $options);
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// Does this also need to do the jumpto_is_correct?
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if ($this->lesson->custom) {
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$result->correctanswer = ($otheranswers->score > 0);
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}
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$result->answerid = $otheranswers->id;
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}
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}
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$result->userresponse = $studentanswer;
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//clean student answer as it goes to output.
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$result->studentanswer = s($studentanswer);
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return $result;
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}
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public function option_description_string() {
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if ($this->properties->qoption) {
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return " - ".get_string("casesensitive", "lesson");
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}
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return parent::option_description_string();
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}
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public function display_answers(html_table $table) {
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$answers = $this->get_answers();
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$options = new stdClass;
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$options->noclean = true;
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$options->para = false;
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$i = 1;
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foreach ($answers as $answer) {
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$answer = parent::rewrite_answers_urls($answer, false);
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$cells = array();
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if ($this->lesson->custom && $answer->score > 0) {
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// if the score is > 0, then it is correct
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$cells[] = '<label class="correct">' . get_string('answer', 'lesson') . ' ' . $i . '</label>:';
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} else if ($this->lesson->custom) {
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$cells[] = '<label>' . get_string('answer', 'lesson') . ' ' . $i . '</label>:';
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} else if ($this->lesson->jumpto_is_correct($this->properties->id, $answer->jumpto)) {
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// underline correct answers
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$cells[] = '<span class="correct">' . get_string('answer', 'lesson') . ' ' . $i . '</span>:' . "\n";
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} else {
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$cells[] = '<label class="correct">' . get_string('answer', 'lesson') . ' ' . $i . '</label>:';
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}
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$cells[] = format_text($answer->answer, $answer->answerformat, $options);
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$table->data[] = new html_table_row($cells);
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$cells = array();
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$cells[] = '<label>' . get_string('response', 'lesson') . ' ' . $i . '</label>:';
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$cells[] = format_text($answer->response, $answer->responseformat, $options);
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$table->data[] = new html_table_row($cells);
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$cells = array();
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$cells[] = '<label>' . get_string('score', 'lesson') . '</label>:';
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$cells[] = $answer->score;
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$table->data[] = new html_table_row($cells);
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$cells = array();
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$cells[] = '<label>' . get_string('jump', 'lesson') . '</label>:';
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$cells[] = $this->get_jump_name($answer->jumpto);
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$table->data[] = new html_table_row($cells);
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if ($i === 1){
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$table->data[count($table->data)-1]->cells[0]->style = 'width:20%;';
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}
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$i++;
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}
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return $table;
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}
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public function stats(array &$pagestats, $tries) {
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$temp = $this->lesson->get_last_attempt($tries);
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if (isset($pagestats[$temp->pageid][$temp->useranswer])) {
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$pagestats[$temp->pageid][$temp->useranswer]++;
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} else {
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$pagestats[$temp->pageid][$temp->useranswer] = 1;
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}
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if (isset($pagestats[$temp->pageid]["total"])) {
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$pagestats[$temp->pageid]["total"]++;
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} else {
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$pagestats[$temp->pageid]["total"] = 1;
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}
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return true;
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}
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public function report_answers($answerpage, $answerdata, $useranswer, $pagestats, &$i, &$n) {
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global $PAGE;
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$answers = $this->get_answers();
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$formattextdefoptions = new stdClass;
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$formattextdefoptions->para = false; //I'll use it widely in this page
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foreach ($answers as $answer) {
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$answer = parent::rewrite_answers_urls($answer, false);
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if ($useranswer == null && $i == 0) {
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// I have the $i == 0 because it is easier to blast through it all at once.
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if (isset($pagestats[$this->properties->id])) {
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$stats = $pagestats[$this->properties->id];
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$total = $stats["total"];
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unset($stats["total"]);
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foreach ($stats as $valentered => $ntimes) {
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$data = '<input type="text" size="50" disabled="disabled" class="form-control" ' .
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'readonly="readonly" value="'.s($valentered).'" />';
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$percent = $ntimes / $total * 100;
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$percent = round($percent, 2);
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$percent .= "% ".get_string("enteredthis", "lesson");
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$answerdata->answers[] = array($data, $percent);
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}
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} else {
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332 |
$answerdata->answers[] = array(get_string("nooneansweredthisquestion", "lesson"), " ");
|
|
|
333 |
}
|
|
|
334 |
$i++;
|
|
|
335 |
} else if ($useranswer != null && ($answer->id == $useranswer->answerid || $answer == end($answers))) {
|
|
|
336 |
// get in here when what the user entered is not one of the answers
|
|
|
337 |
$data = '<input type="text" size="50" disabled="disabled" class="form-control" ' .
|
|
|
338 |
'readonly="readonly" value="'.s($useranswer->useranswer).'">';
|
|
|
339 |
if (isset($pagestats[$this->properties->id][$useranswer->useranswer])) {
|
|
|
340 |
$percent = $pagestats[$this->properties->id][$useranswer->useranswer] / $pagestats[$this->properties->id]["total"] * 100;
|
|
|
341 |
$percent = round($percent, 2);
|
|
|
342 |
$percent .= "% ".get_string("enteredthis", "lesson");
|
|
|
343 |
} else {
|
|
|
344 |
$percent = get_string("nooneenteredthis", "lesson");
|
|
|
345 |
}
|
|
|
346 |
$answerdata->answers[] = array($data, $percent);
|
|
|
347 |
|
|
|
348 |
if ($answer->id == $useranswer->answerid) {
|
|
|
349 |
if ($answer->response == null) {
|
|
|
350 |
if ($useranswer->correct) {
|
|
|
351 |
$answerdata->response = get_string("thatsthecorrectanswer", "lesson");
|
|
|
352 |
} else {
|
|
|
353 |
$answerdata->response = get_string("thatsthewronganswer", "lesson");
|
|
|
354 |
}
|
|
|
355 |
} else {
|
|
|
356 |
$answerdata->response = $answer->response;
|
|
|
357 |
}
|
|
|
358 |
if ($this->lesson->custom) {
|
|
|
359 |
$answerdata->score = get_string("pointsearned", "lesson").": ".$answer->score;
|
|
|
360 |
} elseif ($useranswer->correct) {
|
|
|
361 |
$answerdata->score = get_string("receivedcredit", "lesson");
|
|
|
362 |
} else {
|
|
|
363 |
$answerdata->score = get_string("didnotreceivecredit", "lesson");
|
|
|
364 |
}
|
|
|
365 |
// We have found the correct answer, do not process any more answers.
|
|
|
366 |
$answerpage->answerdata = $answerdata;
|
|
|
367 |
break;
|
|
|
368 |
} else {
|
|
|
369 |
$answerdata->response = get_string("thatsthewronganswer", "lesson");
|
|
|
370 |
if ($this->lesson->custom) {
|
|
|
371 |
$answerdata->score = get_string("pointsearned", "lesson").": 0";
|
|
|
372 |
} else {
|
|
|
373 |
$answerdata->score = get_string("didnotreceivecredit", "lesson");
|
|
|
374 |
}
|
|
|
375 |
}
|
|
|
376 |
}
|
|
|
377 |
$answerpage->answerdata = $answerdata;
|
|
|
378 |
}
|
|
|
379 |
return $answerpage;
|
|
|
380 |
}
|
|
|
381 |
|
|
|
382 |
/**
|
|
|
383 |
* Make updates to the form data if required. In this case to put the all other answer data into the write section of the form.
|
|
|
384 |
*
|
|
|
385 |
* @param stdClass $data The form data to update.
|
|
|
386 |
* @return stdClass The updated fom data.
|
|
|
387 |
*/
|
|
|
388 |
public function update_form_data(stdClass $data): stdClass {
|
|
|
389 |
$answercount = count($this->get_answers());
|
|
|
390 |
// Check for other answer entry.
|
|
|
391 |
$lastanswer = $data->{'answer_editor[' . ($answercount - 1) . ']'};
|
|
|
392 |
if (strpos($lastanswer, LESSON_OTHER_ANSWERS) !== false) {
|
|
|
393 |
$data->{'answer_editor[' . ($this->lesson->maxanswers + 1) . ']'} =
|
|
|
394 |
$data->{'answer_editor[' . ($answercount - 1) . ']'};
|
|
|
395 |
$data->{'response_editor[' . ($this->lesson->maxanswers + 1) . ']'} =
|
|
|
396 |
$data->{'response_editor[' . ($answercount - 1) . ']'};
|
|
|
397 |
$data->{'jumpto[' . ($this->lesson->maxanswers + 1) . ']'} = $data->{'jumpto[' . ($answercount - 1) . ']'};
|
|
|
398 |
$data->{'score[' . ($this->lesson->maxanswers + 1) . ']'} = $data->{'score[' . ($answercount - 1) . ']'};
|
|
|
399 |
$data->enableotheranswers = true;
|
|
|
400 |
// Unset the old values.
|
|
|
401 |
unset($data->{'answer_editor[' . ($answercount - 1) . ']'});
|
|
|
402 |
unset($data->{'response_editor[' . ($answercount - 1) . ']'});
|
|
|
403 |
unset($data->{'jumpto[' . ($answercount - 1) . ']'});
|
|
|
404 |
unset($data->{'score[' . ($answercount - 1) . ']'});
|
|
|
405 |
}
|
|
|
406 |
return $data;
|
|
|
407 |
}
|
|
|
408 |
}
|
|
|
409 |
|
|
|
410 |
|
|
|
411 |
class lesson_add_page_form_shortanswer extends lesson_add_page_form_base {
|
|
|
412 |
public $qtype = 'shortanswer';
|
|
|
413 |
public $qtypestring = 'shortanswer';
|
|
|
414 |
protected $answerformat = '';
|
|
|
415 |
protected $responseformat = LESSON_ANSWER_HTML;
|
|
|
416 |
|
|
|
417 |
public function custom_definition() {
|
|
|
418 |
|
|
|
419 |
$this->_form->addElement('checkbox', 'qoption', get_string('options', 'lesson'), get_string('casesensitive', 'lesson')); //oh my, this is a regex option!
|
|
|
420 |
$this->_form->setDefault('qoption', 0);
|
|
|
421 |
$this->_form->addHelpButton('qoption', 'casesensitive', 'lesson');
|
|
|
422 |
|
|
|
423 |
$answercount = $this->_customdata['lesson']->maxanswers;
|
|
|
424 |
for ($i = 0; $i < $answercount; $i++) {
|
|
|
425 |
$this->_form->addElement('header', 'answertitle'.$i, get_string('answer').' '.($i+1));
|
|
|
426 |
// Only first answer is required.
|
|
|
427 |
$this->add_answer($i, null, ($i < 1));
|
|
|
428 |
$this->add_response($i);
|
|
|
429 |
$this->add_jumpto($i, null, ($i == 0 ? LESSON_NEXTPAGE : LESSON_THISPAGE));
|
|
|
430 |
$this->add_score($i, null, ($i===0)?1:0);
|
|
|
431 |
}
|
|
|
432 |
|
|
|
433 |
// Other answer jump.
|
|
|
434 |
$this->_form->addElement('header', 'wronganswer', get_string('allotheranswers', 'lesson'));
|
|
|
435 |
$newcount = $answercount + 1;
|
|
|
436 |
$this->_form->addElement('advcheckbox', 'enableotheranswers', get_string('enabled', 'lesson'));
|
|
|
437 |
$this->add_response($newcount);
|
|
|
438 |
$this->add_jumpto($newcount, get_string('allotheranswersjump', 'lesson'), LESSON_NEXTPAGE);
|
|
|
439 |
$this->add_score($newcount, get_string('allotheranswersscore', 'lesson'), 0);
|
|
|
440 |
}
|
|
|
441 |
}
|
|
|
442 |
|
|
|
443 |
class lesson_display_answer_form_shortanswer extends moodleform {
|
|
|
444 |
|
|
|
445 |
public function definition() {
|
|
|
446 |
global $OUTPUT, $USER;
|
|
|
447 |
$mform = $this->_form;
|
|
|
448 |
$contents = $this->_customdata['contents'];
|
|
|
449 |
|
|
|
450 |
$hasattempt = false;
|
|
|
451 |
$attrs = array('size'=>'50', 'maxlength'=>'200');
|
|
|
452 |
if (isset($this->_customdata['lessonid'])) {
|
|
|
453 |
$lessonid = $this->_customdata['lessonid'];
|
|
|
454 |
if (isset($USER->modattempts[$lessonid]->useranswer)) {
|
|
|
455 |
$attrs['readonly'] = 'readonly';
|
|
|
456 |
$hasattempt = true;
|
|
|
457 |
}
|
|
|
458 |
}
|
|
|
459 |
|
|
|
460 |
$placeholder = false;
|
|
|
461 |
if (preg_match('/_____+/', $contents, $matches)) {
|
|
|
462 |
$placeholder = $matches[0];
|
|
|
463 |
$contentsparts = explode( $placeholder, $contents, 2);
|
|
|
464 |
$attrs['size'] = round(strlen($placeholder) * 1.1);
|
|
|
465 |
}
|
|
|
466 |
|
|
|
467 |
// Disable shortforms.
|
|
|
468 |
$mform->setDisableShortforms();
|
|
|
469 |
|
|
|
470 |
$mform->addElement('header', 'pageheader');
|
|
|
471 |
$mform->addElement('hidden', 'id');
|
|
|
472 |
$mform->setType('id', PARAM_INT);
|
|
|
473 |
|
|
|
474 |
$mform->addElement('hidden', 'pageid');
|
|
|
475 |
$mform->setType('pageid', PARAM_INT);
|
|
|
476 |
|
|
|
477 |
if ($placeholder) {
|
|
|
478 |
$contentsgroup = array();
|
|
|
479 |
$contentsgroup[] = $mform->createElement('static', '', '', $contentsparts[0]);
|
|
|
480 |
$contentsgroup[] = $mform->createElement('text', 'answer', '', $attrs);
|
|
|
481 |
$contentsgroup[] = $mform->createElement('static', '', '', $contentsparts[1]);
|
|
|
482 |
$mform->addGroup($contentsgroup, '', '', '', false);
|
|
|
483 |
} else {
|
|
|
484 |
$mform->addElement('html', $OUTPUT->container($contents, 'contents'));
|
|
|
485 |
$mform->addElement('text', 'answer', get_string('youranswer', 'lesson'), $attrs);
|
|
|
486 |
|
|
|
487 |
}
|
|
|
488 |
$mform->setType('answer', PARAM_TEXT);
|
|
|
489 |
|
|
|
490 |
if ($hasattempt) {
|
|
|
491 |
$this->add_action_buttons(null, get_string("nextpage", "lesson"));
|
|
|
492 |
} else {
|
|
|
493 |
$this->add_action_buttons(null, get_string("submit", "lesson"));
|
|
|
494 |
}
|
|
|
495 |
}
|
|
|
496 |
|
|
|
497 |
}
|