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404 lines
12 KiB
PHP
404 lines
12 KiB
PHP
<?php
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require_once("../../config.php");
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require_once("lib.php");
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$attemptid = required_param("attemptid");
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// get attempt, hotpot, course and course_module records
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if (! $attempt = get_record("hotpot_attempts", "id", $attemptid)) {
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error("Hot Potatoes attempt record $attemptid could not be accessed: ".$db->ErrorMsg());
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}
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if ($attempt->userid != $USER->id) {
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error("User ID is incorrect");
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}
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if (! $hotpot = get_record("hotpot", "id", $attempt->hotpot)) {
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error("Hot Potatoes ID is incorrect (attempt id = $attempt->id)");
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}
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if (! $course = get_record("course", "id", $hotpot->course)) {
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error("Course ID is incorrect (hotpot id = $hotpot->id)");
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}
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if (! $cm = get_coursemodule_from_instance("hotpot", $hotpot->id, $course->id)) {
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error("Course Module ID is incorrect");
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}
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// make sure this user is enrolled in this course
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require_login($course->id);
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$next_url = "$CFG->wwwroot/course/view.php?id=$course->id";
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$time = time();
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// update attempt record fields using incoming data
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$attempt->score = optional_param('mark', NULL, PARAM_INT);
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$attempt->status = optional_param('status', NULL, PARAM_INT);
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$attempt->details = optional_param('detail', NULL, PARAM_RAW);
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$attempt->endtime = optional_param('endtime', NULL, PARAM_ALPHA);
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$attempt->starttime = optional_param('starttime', NULL, PARAM_ALPHA);
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$attempt->timefinish = $time;
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if ($attempt->endtime) {
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$attempt->endtime = strtotime($attempt->endtime);
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}
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if ($attempt->starttime) {
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$attempt->starttime = strtotime($attempt->starttime);
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}
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// set clickreportid, (for click reporting)
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$attempt->clickreportid = $attempt->id;
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if (empty($attempt->details)) {
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hotpot_set_attempt_details($attempt);
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$javascript_is_off = true;
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} else {
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$javascript_is_off = false;
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}
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if (empty($attempt->status)) {
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if (empty($attempt->endtime)) {
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$attempt->status = HOTPOT_STATUS_INPROGRESS;
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} else {
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$attempt->status = HOTPOT_STATUS_COMPLETED;
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}
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}
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// check if this is the second (or subsequent) click
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if (get_field("hotpot_attempts", "timefinish", "id", $attempt->id)) {
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if ($hotpot->clickreporting==HOTPOT_YES) {
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// add attempt record for each form submission
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// records are linked via the "clickreportid" field
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// update status in previous records in this group
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set_field("hotpot_attempts", "status", $attempt->status, "clickreportid", $attempt->clickreportid);
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// add new attempt record
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unset ($attempt->id);
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$attempt->id = insert_record("hotpot_attempts", $attempt);
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if (empty($attempt->id)) {
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error("Could not insert attempt record: ".$db->ErrorMsg(), $next_url);
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}
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// add attempt details record, if necessary
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if (!empty($attempt->details)) {
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unset($details);
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$details->attempt = $attempt->id;
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$details->details = $attempt->details;
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if (! insert_record("hotpot_details", $details, false)) {
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error("Could not insert attempt details record: ".$db->ErrorMsg(), $next_url);
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}
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}
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} else {
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// remove previous responses for this attempt, if required
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// (N.B. this does NOT remove the attempt record, just the responses)
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delete_records("hotpot_responses", "attempt", $attempt->id);
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}
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}
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// remove slashes added by lib/setup.php
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$attempt->details = stripslashes($attempt->details);
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// add details of this attempt
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hotpot_add_attempt_details($attempt);
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// add slashes again, so the details can be added to the database
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$attempt->details = addslashes($attempt->details);
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// update the attempt record
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if (! update_record("hotpot_attempts", $attempt)) {
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error("Could not update attempt record: ".$db->ErrorMsg(), $next_url);
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}
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// get previous attempt details record, if any
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$details_exist = record_exists("hotpot_details", "attempt", $attempt->id);
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// delete/update/add the attempt details record
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if (empty($attempt->details)) {
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if ($details_exist) {
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delete_records("hotpot_details", "attempt", $attempt->id);
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}
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} else {
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if ($details_exist) {
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set_field("hotpot_details", "details", $attempt->details, "attempt", $attempt->id);
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} else {
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unset($details);
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$details->attempt = $attempt->id;
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$details->details = $attempt->details;
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if (! insert_record("hotpot_details", $details)) {
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error("Could not insert attempt details record: ".$db->ErrorMsg(), $next_url);
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}
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}
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}
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if ($attempt->status==HOTPOT_STATUS_INPROGRESS) {
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if ($javascript_is_off) {
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// regenerate HTML page
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define('HOTPOT_FIRST_ATTEMPT', false);
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include ("$CFG->hotpotroot/view.php");
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} else {
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// continue without reloading the page
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header("Status: 204");
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header("HTTP/1.0 204 No Response");
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}
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} else { // quiz is finished
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add_to_log($course->id, "hotpot", "submit", "review.php?id=$cm->id&attempt=$attempt->id", "$hotpot->id", "$cm->id");
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if ($hotpot->shownextquiz==HOTPOT_YES) {
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if (is_numeric($next_cm = hotpot_get_next_cm($cm))) {
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$next_url = "$CFG->wwwroot/mod/hotpot/view.php?id=$next_cm";
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}
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}
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// redirect to the next quiz or the course page
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redirect($next_url, get_string('resultssaved', 'hotpot'));
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}
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// =================
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// functions
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// =================
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function hotpot_get_next_cm(&$cm) {
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// gets the next module in this section of the course
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// that is the same type of module as the current module
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$next_mod = false;
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// get a list of $ids of modules in this section
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if ($ids = get_field('course_sections', 'sequence', 'id', $cm->section)) {
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$found = false;
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$ids = explode(',', $ids);
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foreach ($ids as $id) {
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if ($found && ($cm->module==get_field('course_modules', 'module', 'id', $id))) {
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$next_mod = $id;
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break;
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} else if ($cm->id==$id) {
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$found = true;
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}
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}
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}
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return $next_mod;
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}
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function hotpot_set_attempt_details(&$attempt) {
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global $HOTPOT_QUIZTYPE;
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$attempt->details = '';
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$attempt->score = 0;
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$attempt->status = HOTPOT_STATUS_COMPLETED;
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$buttons = array('clues', 'hints', 'checks');
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$textfields = array('correct', 'wrong', 'ignored');
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$quiztype = HOTPOT_JCLOZE; // optional_param('quiztype', HOTPOT_JCLOZE, PARAM_INT);
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$q = 0;
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while (($responsefield="q{$q}") && isset($_POST[$responsefield])) {
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$responsevalue = optional_param($responsefield, '');
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// initialize $response object
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$response = NULL;
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$response->correct = array();
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$response->wrong = array();
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$response->ignored = array();
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$response->clues = 0;
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$response->hints = 0;
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$response->checks = 0;
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$response->score = 0;
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$response->weighting = 0;
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// create another empty object to hold all previous responses (from database)
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$oldresponse = NULL;
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$vars = get_object_vars($response);
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foreach($vars as $name=>$value) {
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$oldresponse->$name = $value;
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}
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foreach ($buttons as $button) {
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if (($field = "q{$q}_{$button}_button") && isset($_POST[$field])) {
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$value = optional_param($field, '', PARAM_RAW);
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if (!empty($value)) {
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$response->$button++;
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}
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}
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}
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// loop through possible answers to this question
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$firstcorrectvalue = '';
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$a = 0;
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while (($correctfield="q{$q}_correct_{$a}") && isset($_POST[$correctfield])) {
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$correctvalue = optional_param($correctfield, '', PARAM_RAW);
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if (empty($firstcorrectvalue)) {
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$firstcorrectvalue = $correctvalue;
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}
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if ($responsevalue==$correctvalue) {
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$response->correct[] = $responsevalue;
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} else {
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$response->ignored[] = $correctvalue;
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}
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$a++;
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}
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// if no correct answer was found, then this answer is wrong
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if (empty($response->correct)) {
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$response->wrong[] = $responsevalue;
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$attempt->status = HOTPOT_STATUS_INPROGRESS;
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// give a hint, if necessary
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if (isset($_POST['HintButton']) && $firstcorrectvalue) {
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// make sure we only come through here once
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unset($_POST['HintButton']);
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$correctlen = strlen($firstcorrectvalue);
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$responselen = strlen($responsevalue);
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// check how many letters are the same
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$i = 0;
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while ($i<$responselen && $i<$correctlen && $responsevalue{$i}==$firstcorrectvalue{$i}) {
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$i++;
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}
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if ($i<$responselen) {
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// remove incorrect characters on the end of the response
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$responsevalue = substr($responsevalue, 0, $i);
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}
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if ($i<$correctlen) {
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// append next correct letter
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$responsevalue .= $firstcorrectvalue{$i};
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}
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$_POST[$responsefield] = $responsevalue;
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$response->hints++;
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} // end if hint
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} // end if not correct
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// get clue text, if any
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if (($field="q{$q}_clue") && isset($_POST[$field])) {
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$response->clue_text = optional_param($field, '', PARAM_RAW);
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}
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// get question name
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$qq = sprintf('%02d', $q); // (a padded, two-digit version of $q)
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if (($field="q{$q}_name") && isset($_POST[$field])) {
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$questionname = optional_param($field, '', PARAM_RAW);
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} else {
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$questionname = $qq;
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}
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// get previous responses to this question (if any)
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$question = get_record('hotpot_questions', 'name', $questionname, 'hotpot', $attempt->hotpot);
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if ($question) {
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$records = get_records_select('hotpot_responses', "attempt=$attempt->clickreportid AND question=$question->id");
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} else {
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$records = false;
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}
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if ($records) {
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foreach ($records as $record) {
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foreach ($buttons as $button) {
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$oldresponse->$button = max($oldresponse->$button, $record->$button);
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}
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foreach ($textfields as $field) {
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if ($record->$field && ($field=='correct' || $field=='wrong')) {
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$values = explode(',', hotpot_strings($record->$field));
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$oldresponse->$field = array_merge($oldresponse->$field, $values);
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}
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}
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}
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}
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// remove "correct" and "wrong" values from "ignored" values
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$response->ignored = array_diff($response->ignored,
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$response->correct, $response->wrong, $oldresponse->correct, $oldresponse->wrong
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);
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foreach ($buttons as $button) {
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$response->$button += $oldresponse->$button;
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}
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$value_has_changed = false;
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foreach ($textfields as $field) {
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$response->$field = array_merge($response->$field, $oldresponse->$field);
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$response->$field = array_unique($response->$field);
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$response->$field = implode(',', $response->$field);
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if ($field=='correct' || $field=='wrong') {
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$array = $oldresponse->$field;
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$array = array_unique($array);
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$oldresponse->$field = implode(',', $array);
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if ($response->$field<>$oldresponse->$field) {
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$value_has_changed = true;
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}
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}
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}
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if ($value_has_changed) {
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$response->checks++;
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}
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// $response now holds amalgamation of all responses so far to this question
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// set question score and weighting
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if ($response->correct) {
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switch ($quiztype) {
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case HOTPOT_JCB:
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break;
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case HOTPOT_JCLOZE:
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$strlen = strlen($response->correct);
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$response->score = 100*($strlen-($response->checks-1))/$strlen;
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$attempt->score += $response->score;
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break;
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case HOTPOT_JCROSS:
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break;
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case HOTPOT_JMATCH:
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break;
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case HOTPOT_JMIX:
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break;
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case HOTPOT_JQUIZ:
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break;
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}
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}
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// encode $response fields as XML
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$vars = get_object_vars($response);
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foreach($vars as $name=>$value) {
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if (!empty($value)) {
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$fieldname = $HOTPOT_QUIZTYPE[$quiztype]."_q{$qq}_{$name}";
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$attempt->details .= "<field><fieldname>$fieldname</fieldname><fielddata>$value</fielddata></field>";
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}
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}
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$q++;
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} // end main loop through $q(uestions)
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// set attempt score
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if ($q>0) {
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switch ($quiztype) {
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case HOTPOT_JCB:
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break;
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case HOTPOT_JCLOZE:
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$attempt->score = floor($attempt->score / $q);
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break;
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case HOTPOT_JCROSS:
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break;
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case HOTPOT_JMATCH:
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break;
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case HOTPOT_JMIX:
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break;
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case HOTPOT_JQUIZ:
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break;
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}
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}
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if ($attempt->details) {
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$attempt->details = '<?xml version="1.0"?><hpjsresult><fields>'.$attempt->details.'</fields></hpjsresult>';
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}
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// check there are no unattempted questions
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if (($field="I_{$q}_correct_0") && isset($_POST[$field])) {
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$attempt->status = HOTPOT_STATUS_INPROGRESS;
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}
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}
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?>
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