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803 lines
37 KiB
PHP
803 lines
37 KiB
PHP
<?php // $Id$
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/**
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* Action for processing page answers by users
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*
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* @version $Id$
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* @license http://www.gnu.org/copyleft/gpl.html GNU Public License
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* @package lesson
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**/
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confirm_sesskey();
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require_once($CFG->dirroot.'/mod/lesson/pagelib.php');
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require_once($CFG->libdir.'/blocklib.php');
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// left menu code
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// check to see if the user can see the left menu
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if (!has_capability('mod/lesson:manage', $context)) {
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$lesson->displayleft = lesson_displayleftif($lesson);
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}
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// This is the code updates the lesson time for a timed test
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// get time information for this user
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$timer = new stdClass;
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if (!has_capability('mod/lesson:manage', $context)) {
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$params = array ("lessonid" => $lesson->id, "userid" => $USER->id);
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if (!$timer = $DB->get_records_select('lesson_timer', "lessonid = :lessonid AND userid = :userid", $params, 'starttime')) {
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print_error('Error: could not find records');
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} else {
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$timer = array_pop($timer); // this will get the latest start time record
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}
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if ($lesson->timed) {
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$timeleft = ($timer->starttime + $lesson->maxtime * 60) - time();
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if ($timeleft <= 0) {
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// Out of time
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lesson_set_message(get_string('eolstudentoutoftime', 'lesson'));
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redirect("$CFG->wwwroot/mod/lesson/view.php?id=$cm->id&pageid=".LESSON_EOL."&outoftime=normal");
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die; // Shouldn't be reached, but make sure
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} else if ($timeleft < 60) {
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// One minute warning
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lesson_set_message(get_string("studentoneminwarning", "lesson"));
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}
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}
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$timer->lessontime = time();
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if (!$DB->update_record("lesson_timer", $timer)) {
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print_error("Error: could not update lesson_timer table");
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}
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}
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// record answer (if necessary) and show response (if none say if answer is correct or not)
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$pageid = required_param('pageid', PARAM_INT);
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if (!$page = $DB->get_record("lesson_pages", array("id" => $pageid))) {
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print_error("Continue: Page record not found");
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}
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// set up some defaults
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$answerid = 0;
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$noanswer = false;
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$correctanswer = false;
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$isessayquestion = false; // use this to turn off review button on essay questions
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$newpageid = 0; // stay on the page
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$studentanswer = ''; // use this to store student's answer(s) in order to display it on feedback page
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switch ($page->qtype) {
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case LESSON_ESSAY :
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$isessayquestion = true;
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if (!$useranswer = $_POST['answer']) {
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$noanswer = true;
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break;
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}
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$useranswer = clean_param($useranswer, PARAM_RAW);
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if (!$answers = $DB->get_records("lesson_answers", array("pageid" => $pageid), "id")) {
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print_error("Continue: No answers found");
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}
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$correctanswer = false;
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foreach ($answers as $answer) {
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$answerid = $answer->id;
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$newpageid = $answer->jumpto;
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}
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/// 6/29/04 //
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$userresponse->sent=0;
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$userresponse->graded = 0;
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$userresponse->score = 0;
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$userresponse->answer = $useranswer;
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$userresponse->response = "";
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$userresponse = serialize($userresponse);
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$studentanswer = s($useranswer);
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break;
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case LESSON_SHORTANSWER :
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if (!$useranswer = $_POST['answer']) {
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$noanswer = true;
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break;
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}
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$useranswer = s(clean_param($useranswer, PARAM_RAW));
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if (!$answers = $DB->get_records("lesson_answers", array("pageid" => $pageid), "id")) {
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print_error("Continue: No answers found");
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}
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$i=0;
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foreach ($answers as $answer) {
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$i += 1;
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$expectedanswer = $answer->answer; // for easier handling of $answer->answer
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$ismatch = false;
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$markit = false;
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$useregexp = false;
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if ($page->qoption) {
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$useregexp = true;
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}
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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($expectedanswer,strlen($expectedanswer) - 2, 2) == '/i') {
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$expectedanswer = substr($expectedanswer,0,strlen($expectedanswer) - 2);
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$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('#####', '.*', $expectedanswer);
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}
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// see if user typed in any of the correct answers
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if (lesson_iscorrect($pageid, $answer->jumpto) or ($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',$useranswer)) {
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$ismatch = true;
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}
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} else {
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if (preg_match('/^'.$expectedanswer.'$/'.$ignorecase,$useranswer)) {
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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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$correctanswer = true;
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}
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} else {
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if (!$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',$useranswer)) {
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$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 $useranswer (coded by initial '--')
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case "--":
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$expectedanswer = substr($expectedanswer,2);
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if (!preg_match('/^'.$expectedanswer.'$/'.$ignorecase,$useranswer)) {
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$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.'/'.$ignorecase,$useranswer, $matches)) {
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$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].$fontEnd);
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}
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$useranswer = str_replace($original, $marked, $useranswer);
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}
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break;
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//3- check for wrong answers belonging neither to -- nor to ++ categories
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default:
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if (preg_match('/^'.$expectedanswer.'$/'.$ignorecase,$useranswer, $matches)) {
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$ismatch = true;
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}
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break;
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}
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$correctanswer = false;
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}
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}
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if ($ismatch) {
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$newpageid = $answer->jumpto;
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if (trim(strip_tags($answer->response))) {
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$response = $answer->response;
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}
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$answerid = $answer->id;
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break; // quit answer analysis immediately after a match has been found
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}
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}
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$studentanswer = $useranswer;
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break;
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case LESSON_TRUEFALSE :
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if (empty($_POST['answerid'])) {
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$noanswer = true;
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break;
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}
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$answerid = required_param('answerid', PARAM_INT);
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if (!$answer = $DB->get_record("lesson_answers", array("id" => $answerid))) {
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print_error("Continue: answer record not found");
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}
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if (lesson_iscorrect($pageid, $answer->jumpto)) {
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$correctanswer = true;
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}
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if ($lesson->custom) {
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if ($answer->score > 0) {
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$correctanswer = true;
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} else {
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$correctanswer = false;
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}
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}
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$newpageid = $answer->jumpto;
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$response = trim($answer->response);
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$studentanswer = $answer->answer;
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break;
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case LESSON_MULTICHOICE :
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if ($page->qoption) {
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// MULTIANSWER allowed, user's answer is an array
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if (isset($_POST['answer'])) {
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$useranswers = $_POST['answer'];
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foreach ($useranswers as $key => $useranswer) {
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$useranswers[$key] = clean_param($useranswer, PARAM_INT);
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}
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} else {
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$noanswer = true;
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break;
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}
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// get what the user answered
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$userresponse = implode(",", $useranswers);
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// get the answers in a set order, the id order
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if (!$answers = $DB->get_records("lesson_answers", array("pageid" => $pageid), "id")) {
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print_error("Continue: No answers found");
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}
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$ncorrect = 0;
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$nhits = 0;
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$correctresponse = '';
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$wrongresponse = '';
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$correctanswerid = 0;
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$wronganswerid = 0;
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// store student's answers for displaying on feedback page
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foreach ($answers as $answer) {
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foreach ($useranswers as $key => $answerid) {
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if ($answerid == $answer->id) {
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$studentanswer .= '<br />'.$answer->answer;
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}
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}
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}
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// this is for custom scores. If score on answer is positive, it is correct
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if ($lesson->custom) {
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$ncorrect = 0;
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$nhits = 0;
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foreach ($answers as $answer) {
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if ($answer->score > 0) {
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$ncorrect++;
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foreach ($useranswers as $key => $answerid) {
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if ($answerid == $answer->id) {
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$nhits++;
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}
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}
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// save the first jumpto page id, may be needed!...
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if (!isset($correctpageid)) {
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// leave in its "raw" state - will converted into a proper page id later
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$correctpageid = $answer->jumpto;
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}
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// save the answer id for scoring
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if ($correctanswerid == 0) {
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$correctanswerid = $answer->id;
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}
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// ...also save any response from the correct answers...
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if (trim(strip_tags($answer->response))) {
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$correctresponse = $answer->response;
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}
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} else {
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// save the first jumpto page id, may be needed!...
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if (!isset($wrongpageid)) {
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// leave in its "raw" state - will converted into a proper page id later
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$wrongpageid = $answer->jumpto;
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}
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// save the answer id for scoring
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if ($wronganswerid == 0) {
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$wronganswerid = $answer->id;
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}
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// ...and from the incorrect ones, don't know which to use at this stage
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if (trim(strip_tags($answer->response))) {
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$wrongresponse = $answer->response;
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}
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}
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}
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} else {
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foreach ($answers as $answer) {
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if (lesson_iscorrect($pageid, $answer->jumpto)) {
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$ncorrect++;
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foreach ($useranswers as $key => $answerid) {
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if ($answerid == $answer->id) {
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$nhits++;
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}
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}
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// save the first jumpto page id, may be needed!...
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if (!isset($correctpageid)) {
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// leave in its "raw" state - will converted into a proper page id later
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$correctpageid = $answer->jumpto;
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}
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// save the answer id for scoring
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if ($correctanswerid == 0) {
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$correctanswerid = $answer->id;
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}
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// ...also save any response from the correct answers...
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if (trim(strip_tags($answer->response))) {
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$correctresponse = $answer->response;
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}
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} else {
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// save the first jumpto page id, may be needed!...
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if (!isset($wrongpageid)) {
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// leave in its "raw" state - will converted into a proper page id later
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$wrongpageid = $answer->jumpto;
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}
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// save the answer id for scoring
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if ($wronganswerid == 0) {
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$wronganswerid = $answer->id;
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}
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// ...and from the incorrect ones, don't know which to use at this stage
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if (trim(strip_tags($answer->response))) {
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$wrongresponse = $answer->response;
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}
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}
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}
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}
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if ((count($useranswers) == $ncorrect) and ($nhits == $ncorrect)) {
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$correctanswer = true;
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$response = $correctresponse;
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$newpageid = $correctpageid;
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$answerid = $correctanswerid;
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} else {
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$response = $wrongresponse;
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$newpageid = $wrongpageid;
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$answerid = $wronganswerid;
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}
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} else {
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// only one answer allowed
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if (empty($_POST['answerid'])) {
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$noanswer = true;
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break;
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}
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$answerid = required_param('answerid', PARAM_INT);
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if (!$answer = $DB->get_record("lesson_answers", array("id" => $answerid))) {
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print_error("Continue: answer record not found");
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}
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if (lesson_iscorrect($pageid, $answer->jumpto)) {
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$correctanswer = true;
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}
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if ($lesson->custom) {
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if ($answer->score > 0) {
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$correctanswer = true;
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} else {
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$correctanswer = false;
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}
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}
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$newpageid = $answer->jumpto;
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$response = trim($answer->response);
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$studentanswer = $answer->answer;
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}
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break;
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case LESSON_MATCHING :
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if (isset($_POST['response']) && is_array($_POST['response'])) { // only arrays should be submitted
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$response = array();
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foreach ($_POST['response'] as $key => $value) {
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$response[$key] = $value;
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}
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} else {
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$noanswer = true;
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break;
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}
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if (!$answers = $DB->get_records("lesson_answers", array("pageid" => $pageid), "id")) {
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print_error("Continue: No answers found");
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}
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$ncorrect = 0;
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$i = 0;
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foreach ($answers as $answer) {
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if ($i == 0 || $i == 1) {
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// ignore first two answers, they are correct response
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// and wrong response
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$i++;
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continue;
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}
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if ($answer->response == $response[$answer->id]) {
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$ncorrect++;
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}
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if ($i == 2) {
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$correctpageid = $answer->jumpto;
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$correctanswerid = $answer->id;
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}
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if ($i == 3) {
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$wrongpageid = $answer->jumpto;
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$wronganswerid = $answer->id;
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}
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$i++;
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}
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// get he users exact responses for record keeping
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$userresponse = array();
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foreach ($response as $key => $value) {
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foreach($answers as $answer) {
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if ($value == $answer->response) {
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$userresponse[] = $answer->id;
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}
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}
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$studentanswer .= '<br />'.$answers[$key]->answer.' = '.$value;
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}
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$userresponse = implode(",", $userresponse);
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$response = '';
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if ($ncorrect == count($answers)-2) { // dont count correct/wrong responses in the total.
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foreach ($answers as $answer) {
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if ($answer->response == NULL && $answer->answer != NULL) {
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$response = $answer->answer;
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break;
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}
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}
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if (isset($correctpageid)) {
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$newpageid = $correctpageid;
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}
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if (isset($correctanswerid)) {
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$answerid = $correctanswerid;
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}
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$correctanswer = true;
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} else {
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$t = 0;
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foreach ($answers as $answer) {
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if ($answer->response == NULL && $answer->answer != NULL) {
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if ($t == 1) {
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$response = $answer->answer;
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break;
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}
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$t++;
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}
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}
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$newpageid = $wrongpageid;
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$answerid = $wronganswerid;
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}
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break;
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case LESSON_NUMERICAL :
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// set defaults
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$response = '';
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$newpageid = 0;
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if (isset($_POST['answer'])) {
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$useranswer = (float) optional_param('answer'); // just doing default PARAM_CLEAN, not doing PARAM_INT because it could be a float
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} else {
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$noanswer = true;
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break;
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}
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$studentanswer = $userresponse = $useranswer;
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if (!$answers = $DB->get_records("lesson_answers", array("pageid" => $pageid), "id")) {
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print_error("Continue: No answers found");
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}
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foreach ($answers as $answer) {
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if (strpos($answer->answer, ':')) {
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// there's a pairs of values
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list($min, $max) = explode(':', $answer->answer);
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$minimum = (float) $min;
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$maximum = (float) $max;
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} else {
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// there's only one value
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$minimum = (float) $answer->answer;
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$maximum = $minimum;
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}
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if (($useranswer >= $minimum) and ($useranswer <= $maximum)) {
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$newpageid = $answer->jumpto;
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$response = trim($answer->response);
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if (lesson_iscorrect($pageid, $newpageid)) {
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$correctanswer = true;
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}
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if ($lesson->custom) {
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if ($answer->score > 0) {
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$correctanswer = true;
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} else {
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$correctanswer = false;
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}
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}
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$answerid = $answer->id;
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break;
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}
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}
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break;
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case LESSON_BRANCHTABLE:
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$noanswer = false;
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$newpageid = optional_param('jumpto', NULL, PARAM_INT);
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// going to insert into lesson_branch
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if ($newpageid == LESSON_RANDOMBRANCH) {
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$branchflag = 1;
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} else {
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$branchflag = 0;
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}
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$params = array ("lessonid" => $lesson->id, "userid" => $USER->id);
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if ($grades = $DB->get_records_select("lesson_grades", "lessonid = :lessonid AND userid = :userid",
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$params, "grade DESC")) {
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$retries = count($grades);
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} else {
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|
$retries = 0;
|
|
}
|
|
$branch = new stdClass;
|
|
$branch->lessonid = $lesson->id;
|
|
$branch->userid = $USER->id;
|
|
$branch->pageid = $pageid;
|
|
$branch->retry = $retries;
|
|
$branch->flag = $branchflag;
|
|
$branch->timeseen = time();
|
|
|
|
if (!$DB->insert_record("lesson_branch", $branch)) {
|
|
print_error("Error: could not insert row into lesson_branch table");
|
|
}
|
|
|
|
// this is called when jumping to random from a branch table
|
|
if($newpageid == LESSON_UNSEENBRANCHPAGE) {
|
|
if (has_capability('mod/lesson:manage', $context)) {
|
|
$newpageid = LESSON_NEXTPAGE;
|
|
} else {
|
|
$newpageid = lesson_unseen_question_jump($lesson->id, $USER->id, $pageid); // this may return 0
|
|
}
|
|
}
|
|
// convert jumpto page into a proper page id
|
|
if ($newpageid == 0) {
|
|
$newpageid = $pageid;
|
|
} elseif ($newpageid == LESSON_NEXTPAGE) {
|
|
if (!$newpageid = $page->nextpageid) {
|
|
// no nextpage go to end of lesson
|
|
$newpageid = LESSON_EOL;
|
|
}
|
|
} elseif ($newpageid == LESSON_PREVIOUSPAGE) {
|
|
$newpageid = $page->prevpageid;
|
|
} elseif ($newpageid == LESSON_RANDOMPAGE) {
|
|
$newpageid = lesson_random_question_jump($lesson->id, $pageid);
|
|
} elseif ($newpageid == LESSON_RANDOMBRANCH) {
|
|
$newpageid = lesson_unseen_branch_jump($lesson->id, $USER->id);
|
|
}
|
|
// no need to record anything in lesson_attempts
|
|
redirect("$CFG->wwwroot/mod/lesson/view.php?id=$cm->id&pageid=$newpageid");
|
|
break;
|
|
|
|
}
|
|
|
|
$attemptsremaining = 0;
|
|
$maxattemptsreached = 0;
|
|
$nodefaultresponse = false; // Flag for redirecting when default feedback is turned off
|
|
|
|
if ($noanswer) {
|
|
$newpageid = $pageid; // display same page again
|
|
$feedback = get_string('noanswer', 'lesson');
|
|
} else {
|
|
$nretakes = $DB->count_records("lesson_grades", array("lessonid"=>$lesson->id, "userid"=>$USER->id));
|
|
if (!has_capability('mod/lesson:manage', $context)) {
|
|
// record student's attempt
|
|
$attempt = new stdClass;
|
|
$attempt->lessonid = $lesson->id;
|
|
$attempt->pageid = $pageid;
|
|
$attempt->userid = $USER->id;
|
|
$attempt->answerid = $answerid;
|
|
$attempt->retry = $nretakes;
|
|
$attempt->correct = $correctanswer;
|
|
if(isset($userresponse)) {
|
|
$attempt->useranswer = $userresponse;
|
|
}
|
|
|
|
$attempt->timeseen = time();
|
|
// if allow modattempts, then update the old attempt record, otherwise, insert new answer record
|
|
if (isset($USER->modattempts[$lesson->id])) {
|
|
$attempt->retry = $nretakes - 1; // they are going through on review, $nretakes will be too high
|
|
}
|
|
if (!$newattemptid = $DB->insert_record("lesson_attempts", $attempt)) {
|
|
print_error("Continue: attempt not inserted");
|
|
}
|
|
// "number of attempts remaining" message if $lesson->maxattempts > 1
|
|
// displaying of message(s) is at the end of page for more ergonomic display
|
|
if (!$correctanswer and ($newpageid == 0)) {
|
|
// wrong answer and student is stuck on this page - check how many attempts
|
|
// the student has had at this page/question
|
|
$nattempts = $DB->count_records("lesson_attempts", array("pageid"=>$pageid, "userid"=>$USER->id),
|
|
"retry", $nretakes);
|
|
|
|
// retreive the number of attempts left counter for displaying at bottom of feedback page
|
|
if ($nattempts >= $lesson->maxattempts) {
|
|
if ($lesson->maxattempts > 1) { // don't bother with message if only one attempt
|
|
$maxattemptsreached = 1;
|
|
}
|
|
$newpageid = LESSON_NEXTPAGE;
|
|
} else if ($lesson->maxattempts > 1) { // don't bother with message if only one attempt
|
|
$attemptsremaining = $lesson->maxattempts - $nattempts;
|
|
}
|
|
}
|
|
}
|
|
// TODO: merge this code with the jump code below. Convert jumpto page into a proper page id
|
|
if ($newpageid == 0) {
|
|
$newpageid = $pageid;
|
|
} elseif ($newpageid == LESSON_NEXTPAGE) {
|
|
if ($lesson->nextpagedefault) {
|
|
// in Flash Card mode...
|
|
// ... first get the page ids (lessonid the 5th param is needed to make $DB->get_records play)
|
|
$allpages = $DB->get_records("lesson_pages", array("lessonid" => $lesson->id), "id", "id,lessonid,qtype");
|
|
shuffle ($allpages);
|
|
$found = false;
|
|
if ($lesson->nextpagedefault == LESSON_UNSEENPAGE) {
|
|
foreach ($allpages as $thispage) {
|
|
if (!$DB->count_records("lesson_attempts", array("pageid"=>$thispage->id, "userid"=>$USER->id, "retry"=>$nretakes))) {
|
|
$found = true;
|
|
break;
|
|
}
|
|
}
|
|
} elseif ($lesson->nextpagedefault == LESSON_UNANSWEREDPAGE) {
|
|
foreach ($allpages as $thispage) {
|
|
if ($thispage->qtype == LESSON_ESSAY) {
|
|
if (!$DB->count_records("lesson_attempts", array('pageid'=>$thispage->id, 'userid'=>$USER->id, 'retry'=>$nretakes))) {
|
|
$found = true;
|
|
break;
|
|
}
|
|
} else {
|
|
if (!$DB->count_records("lesson_attempts", array('pageid'=>$thispage->id, 'userid'=>$USER->id, 'correct'=>1, 'retry'=>$nretakes))) {
|
|
$found = true;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if ($found) {
|
|
$newpageid = $thispage->id;
|
|
if ($lesson->maxpages) {
|
|
// check number of pages viewed (in the lesson)
|
|
if ($DB->count_records("lesson_attempts", array("lessonid"=>$lesson->id, "userid"=>$USER->id,
|
|
"retry"=>$nretakes)) >= $lesson->maxpages) {
|
|
$newpageid = LESSON_EOL;
|
|
}
|
|
}
|
|
} else {
|
|
$newpageid = LESSON_EOL;
|
|
}
|
|
} elseif (!$newpageid = $page->nextpageid) {
|
|
// no nextpage go to end of lesson
|
|
$newpageid = LESSON_EOL;
|
|
}
|
|
}
|
|
|
|
// Determine default feedback if necessary
|
|
if (empty($response)) {
|
|
if (!$lesson->feedback and !$noanswer and !($lesson->review and !$correctanswer and !$isessayquestion)) {
|
|
// These conditions have been met:
|
|
// 1. The lesson manager has not supplied feedback to the student
|
|
// 2. Not displaying default feedback
|
|
// 3. The user did provide an answer
|
|
// 4. We are not reviewing with an incorrect answer (and not reviewing an essay question)
|
|
|
|
$nodefaultresponse = true; // This will cause a redirect below
|
|
} else if ($isessayquestion) {
|
|
$response = get_string('defaultessayresponse', 'lesson');
|
|
} else if ($correctanswer) {
|
|
$response = get_string('thatsthecorrectanswer', 'lesson');
|
|
} else {
|
|
$response = get_string('thatsthewronganswer', 'lesson');
|
|
}
|
|
}
|
|
|
|
// display response (if there is one - there should be!)
|
|
// display: lesson title, page title, question text, student's answer(s) before feedback message
|
|
|
|
if ($response) {
|
|
//optionally display question page title
|
|
//if ($title = $DB->get_field("lesson_pages", "title", array("id" => $pageid))) {
|
|
// print_heading($title);
|
|
//}
|
|
if ($lesson->review and !$correctanswer and !$isessayquestion) {
|
|
$nretakes = $DB->count_records("lesson_grades", array("lessonid"=>$lesson->id, "userid"=>$USER->id));
|
|
$qattempts = $DB->count_records("lesson_attempts", array("userid"=>$USER->id, "retry"=>$nretakes, "pageid"=>$pageid));
|
|
if ($qattempts == 1) {
|
|
$feedback = get_string("firstwrong", "lesson");
|
|
} else {
|
|
$feedback = get_string("secondpluswrong", "lesson");
|
|
}
|
|
} else {
|
|
if ($correctanswer) {
|
|
$class = 'response correct'; //CSS over-ride this if they exist (!important)
|
|
} else if ($isessayquestion) {
|
|
$class = 'response';
|
|
} else {
|
|
$class = 'response incorrect';
|
|
}
|
|
$options = new stdClass;
|
|
$options->noclean = true;
|
|
$options->para = true;
|
|
$feedback = print_simple_box(format_text($page->contents, FORMAT_MOODLE, $options), 'center', '', '', 5, 'generalbox', '', true);
|
|
$feedback .= '<em>'.get_string("youranswer", "lesson").'</em> : '.format_text($studentanswer, FORMAT_MOODLE, $options).
|
|
"<div class=\"$class\">".format_text($response, FORMAT_MOODLE, $options).'</div>';
|
|
}
|
|
}
|
|
}
|
|
|
|
// TODO: merge with the jump code above. This is where some jump numbers are interpreted
|
|
if (isset($USER->modattempts[$lesson->id])) {
|
|
// make sure if the student is reviewing, that he/she sees the same pages/page path that he/she saw the first time
|
|
if ($USER->modattempts[$lesson->id] == $pageid) { // remember, this session variable holds the pageid of the last page that the user saw
|
|
$newpageid = LESSON_EOL;
|
|
} else {
|
|
$nretakes--; // make sure we are looking at the right try.
|
|
$params = array ("lessonid" => $lesson->id, "userid" => $USER->id, "retry" => $nretakes);
|
|
$attempts = $DB->get_records_select("lesson_attempts", "lessonid = :lessonid AND userid = :userid AND retry = :retry", $params, "timeseen", "id, pageid");
|
|
$found = false;
|
|
$temppageid = 0;
|
|
foreach($attempts as $attempt) {
|
|
if ($found && $temppageid != $attempt->pageid) { // now try to find the next page, make sure next few attempts do no belong to current page
|
|
$newpageid = $attempt->pageid;
|
|
break;
|
|
}
|
|
if ($attempt->pageid == $pageid) {
|
|
$found = true; // if found current page
|
|
$temppageid = $attempt->pageid;
|
|
}
|
|
}
|
|
}
|
|
} elseif ($newpageid != LESSON_CLUSTERJUMP && $pageid != 0 && $newpageid > 0) { // going to check to see if the page that the user is going to view next, is a cluster page. If so, dont display, go into the cluster. The $newpageid > 0 is used to filter out all of the negative code jumps.
|
|
if (!$page = $DB->get_record("lesson_pages", array("id" => $newpageid))) {
|
|
print_error("Error: could not find page");
|
|
}
|
|
if ($page->qtype == LESSON_CLUSTER) {
|
|
$newpageid = lesson_cluster_jump($lesson->id, $USER->id, $page->id);
|
|
} elseif ($page->qtype == LESSON_ENDOFCLUSTER) {
|
|
$jump = $DB->get_field("lesson_answers", "jumpto", array("pageid" => $page->id, "lessonid" => $lesson->id));
|
|
if ($jump == LESSON_NEXTPAGE) {
|
|
if ($page->nextpageid == 0) {
|
|
$newpageid = LESSON_EOL;
|
|
} else {
|
|
$newpageid = $page->nextpageid;
|
|
}
|
|
} else {
|
|
$newpageid = $jump;
|
|
}
|
|
}
|
|
} elseif ($newpageid == LESSON_UNSEENBRANCHPAGE) {
|
|
if (has_capability('mod/lesson:manage', $context)) {
|
|
if ($page->nextpageid == 0) {
|
|
$newpageid = LESSON_EOL;
|
|
} else {
|
|
$newpageid = $page->nextpageid;
|
|
}
|
|
} else {
|
|
$newpageid = lesson_unseen_question_jump($lesson->id, $USER->id, $pageid);
|
|
}
|
|
} elseif ($newpageid == LESSON_PREVIOUSPAGE) {
|
|
$newpageid = $page->prevpageid;
|
|
} elseif ($newpageid == LESSON_RANDOMPAGE) {
|
|
$newpageid = lesson_random_question_jump($lesson->id, $pageid);
|
|
} elseif ($newpageid == LESSON_CLUSTERJUMP) {
|
|
if (has_capability('mod/lesson:manage', $context)) {
|
|
if ($page->nextpageid == 0) { // if teacher, go to next page
|
|
$newpageid = LESSON_EOL;
|
|
} else {
|
|
$newpageid = $page->nextpageid;
|
|
}
|
|
} else {
|
|
$newpageid = lesson_cluster_jump($lesson->id, $USER->id, $pageid);
|
|
}
|
|
}
|
|
|
|
if ($nodefaultresponse) {
|
|
// Don't display feedback
|
|
redirect("$CFG->wwwroot/mod/lesson/view.php?id=$cm->id&pageid=$newpageid");
|
|
}
|
|
|
|
/// Set Messages
|
|
|
|
// This is the warning msg for teachers to inform them that cluster and unseen does not work while logged in as a teacher
|
|
if(has_capability('mod/lesson:manage', $context) and lesson_display_teacher_warning($lesson->id)) {
|
|
$warningvars->cluster = get_string("clusterjump", "lesson");
|
|
$warningvars->unseen = get_string("unseenpageinbranch", "lesson");
|
|
lesson_set_message(get_string("teacherjumpwarning", "lesson", $warningvars));
|
|
}
|
|
// Inform teacher that s/he will not see the timer
|
|
if ($lesson->timed and has_capability('mod/lesson:manage', $context)) {
|
|
lesson_set_message(get_string("teachertimerwarning", "lesson"));
|
|
}
|
|
// Report attempts remaining
|
|
if ($attemptsremaining != 0) {
|
|
lesson_set_message(get_string('attemptsremaining', 'lesson', $attemptsremaining));
|
|
}
|
|
// Report if max attempts reached
|
|
if ($maxattemptsreached != 0) {
|
|
lesson_set_message('('.get_string("maximumnumberofattemptsreached", "lesson").')');
|
|
}
|
|
|
|
$PAGE = page_create_object('mod-lesson-view', $lesson->id);
|
|
$PAGE->set_lessonpageid($page->id);
|
|
$pageblocks = blocks_setup($PAGE);
|
|
|
|
$leftcolumnwidth = bounded_number(180, blocks_preferred_width($pageblocks[BLOCK_POS_LEFT]), 210);
|
|
$rightcolumnwidth = bounded_number(180, blocks_preferred_width($pageblocks[BLOCK_POS_RIGHT]), 210);
|
|
|
|
/// Print the header, heading and tabs
|
|
$PAGE->print_header();
|
|
|
|
include(dirname(__FILE__).'/continue.html');
|
|
?>
|