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ed1daaa9d7
If so, then grades are not shown to students, nor is a column added to the gradebook (although they are still stored and calculated internally)
245 lines
8.1 KiB
PHP
245 lines
8.1 KiB
PHP
<?PHP // $Id$
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// This page prints a particular instance of quiz
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require_once("../../config.php");
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require_once("lib.php");
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optional_variable($id); // Course Module ID, or
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optional_variable($q); // quiz ID
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if ($id) {
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if (! $cm = get_record("course_modules", "id", $id)) {
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error("Course Module ID was incorrect");
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}
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if (! $course = get_record("course", "id", $cm->course)) {
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error("Course is misconfigured");
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}
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if (! $quiz = get_record("quiz", "id", $cm->instance)) {
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error("Course module is incorrect");
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}
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} else {
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if (! $quiz = get_record("quiz", "id", $q)) {
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error("Course module is incorrect");
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}
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if (! $course = get_record("course", "id", $quiz->course)) {
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error("Course is misconfigured");
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}
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if (! $cm = get_coursemodule_from_instance("quiz", $quiz->id, $course->id)) {
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error("Course Module ID was incorrect");
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}
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}
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require_login($course->id);
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/// Check number of attempts
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if ($attempts = quiz_get_user_attempts($quiz->id, $USER->id)) {
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$numattempts = count($attempts) + 1;
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} else {
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$numattempts = 1;
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}
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$strattemptnum = get_string("attempt", "quiz", $numattempts);
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// Print the page header
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if ($course->category) {
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$navigation = "<A HREF=\"../../course/view.php?id=$course->id\">$course->shortname</A> ->";
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}
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$strquizzes = get_string("modulenameplural", "quiz");
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$strquiz = get_string("modulename", "quiz");
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print_header("$course->shortname: $quiz->name", "$course->fullname",
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"$navigation <A HREF=index.php?id=$course->id>$strquizzes</A> ->
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<A HREF=\"view.php?id=$cm->id\">$quiz->name</A> -> $strattemptnum",
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"", "", true);
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/// Check availability
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if ($quiz->attempts) {
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if ($numattempts > $quiz->attempts) {
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error("Sorry, you've had $quiz->attempts attempts already.", "view.php?id=$cm->id");
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}
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}
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$timenow = time();
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$available = ($quiz->timeopen < $timenow and $timenow < $quiz->timeclose);
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/// Check to see if they are submitting answers
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if ($rawanswers = data_submitted()) {
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add_to_log($course->id, "quiz", "submit", "attempt.php?id=$cm->id", "$quiz->id");
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$rawanswers = (array)$rawanswers;
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$shuffleorder = NULL;
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unset($rawanswers["q"]); // quiz id
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if (! count($rawanswers)) {
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print_heading(get_string("noanswers", "quiz"));
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print_continue("attempt.php?q=$quiz->id");
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exit;
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}
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if (!$questions = get_records_list("quiz_questions", "id", $quiz->questions)) {
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error("No questions found!");
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}
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foreach ($rawanswers as $key => $value) { // Parse input for question -> answers
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if (ereg('^q([0-9]+)$', $key, $keyregs)) { // It's a real question number, not a coded one
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$questions[$keyregs[1]]->answer[] = trim($value);
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} else if (ereg('^q([0-9]+)rq([0-9]+)$', $key, $keyregs)) { // Random Question information
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$questions[$keyregs[1]]->random = $keyregs[2];
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} else if (ereg('^q([0-9]+)a([0-9]+)$', $key, $keyregs)) { // Checkbox style multiple answers
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$questions[$keyregs[1]]->answer[] = $keyregs[2];
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} else if (ereg('^q([0-9]+)r([0-9]+)$', $key, $keyregs)) { // Random-style answers
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$questions[$keyregs[1]]->answer[] = "$keyregs[2]-$value";
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} else if (ereg('^q([0-9]+)ma([0-9]+)$', $key, $keyregs)) { // Multi-answer questions
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$questions[$keyregs[1]]->answer[] = "$keyregs[2]-$value";
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} else if ('shuffleorder' == $key) {
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$shuffleorder = explode(",", $value); // Actual order questions were given in
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} else { // Useful for debugging new question types. Must be last.
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error("Answer received for non-existent question ($key -> $value)");
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}
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}
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if (!$result = quiz_grade_attempt_results($quiz, $questions)) {
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error("Could not grade your quiz attempt!");
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}
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if (! $attempt = quiz_save_attempt($quiz, $questions, $result, $numattempts)) {
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notice(get_string("alreadysubmitted", "quiz"), "view.php?id=$cm->id");
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print_footer($course);
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exit;
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}
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if (! quiz_save_best_grade($quiz, $USER->id)) {
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error("Sorry! Could not calculate your best grade!");
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}
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$strgrade = get_string("grade");
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$strscore = get_string("score", "quiz");
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print_heading("$strscore: $result->sumgrades/$quiz->sumgrades ($result->percentage %)");
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if ($quiz->grade) {
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print_heading("$strgrade: $result->grade/$quiz->grade");
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}
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print_continue("view.php?id=$cm->id");
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if ($quiz->feedback) {
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$quiz->shuffleanswers = false; // Never shuffle answers in feedback
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quiz_print_quiz_questions($quiz, $result, $questions, $shuffleorder);
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print_continue("view.php?id=$cm->id");
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}
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print_footer($course);
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exit;
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}
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add_to_log($course->id, "quiz", "attempt", "attempt.php?id=$cm->id", "$quiz->id");
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/// Print the quiz page
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if (isguest()) {
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print_heading(get_string("guestsno", "quiz"));
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print_footer($course);
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exit;
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}
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/// Actually seeing the questions marks the start of an attempt
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if (!$unfinished = quiz_get_user_attempt_unfinished($quiz->id, $USER->id)) {
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if (! quiz_start_attempt($quiz->id, $USER->id, $numattempts)) {
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error("Sorry! Could not start the quiz (could not save starting time)");
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}
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}
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/// First print the headings and so on
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print_heading($quiz->name);
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if (!$available) {
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error("Sorry, this quiz is not available", "view.php?id=$cm->id");
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}
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print_heading(get_string("attempt", "quiz", $numattempts));
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print_simple_box(text_to_html($quiz->intro), "CENTER");
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/// Add the javascript timer in the title bar if the closing time appears close
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$secondsleft = $quiz->timeclose - time();
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if ($secondsleft > 0 and $secondsleft < 24*3600) { // less than a day remaining
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include("jsclock.php");
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}
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/// Print all the questions
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echo "<br />";
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$result = NULL; // Default
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$questions = NULL; // Default
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if ($quiz->attemptonlast && !empty($attempts)) {
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$latestfinishedattempt->attempt = 0;
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foreach ($attempts as $attempt) {
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if ($attempt->timefinish
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&& $attempt->attempt > $latestfinishedattempt->attempt)
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{
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$latestfinishedattempt = $attempt;
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}
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}
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if ($latestfinishedattempt->attempt > 0
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and $questions =
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quiz_get_attempt_responses($latestfinishedattempt))
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{
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// An previous attempt to continue on is found:
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quiz_remove_unwanted_questions($questions, $quiz); // In case the quiz has been changed
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if (!($result = quiz_grade_attempt_results($quiz, $questions))) {
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// No results, reset to defaults:
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$questions = NULL;
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$result = NULL;
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} else {
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// We're on, latest attempt responses are to be included.
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// In order to have this accomplished by
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// the method quiz_print_quiz_questions we need to
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// temporarilly change some of the $quiz attributes
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// and remove some of the information from result.
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$quiz->correctanswers = false; // Not a good idea to show them, huh?
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$result->feedback = array(); // Not to be printed
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$result->attemptbuildsonthelast = true;
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}
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} else {
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// No latest attempt, or latest attempt was empty - Reset to defaults
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$questions = NULL;
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}
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}
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if (! quiz_print_quiz_questions($quiz, $result, $questions)) {
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print_continue("view.php?id=$cm->id");
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}
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/// Finish the page
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print_footer($course);
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?>
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