$lrx = $lowerright->x;
$lry = $lowerright->y;
$scannedpage->status = 'ok';
$scannedpage->error = '';
$scannedpage->listnumber = 0;
$offlinequizconfig->papergray = $offlinequiz->papergray;
if ($newfile = $scanner->rotate_180()) {
$scannedpage->filename = $newfile->get_filename();
$DB->update_record('offlinequiz_scanned_p_pages', $scannedpage);
// Create a completely new scanner.
$scanner = new offlinequiz_participants_scanner($offlinequiz, $context->id, 0, 0);
// Load the stored picture file.
$sheetloaded = $scanner->load_stored_image($scannedpage->filename, array($upperleft, $upperright, $lowerleft, $lowerright));
// The following calibrates the scanner.
$scanner->get_list();
$participants = $scanner->get_participants();
}
} else {
if ($action == 'setpage') {
if (!confirm_sesskey()) {
print_error('invalidsesskey');
echo "<input class=\"imagebutton\" type=\"submit\" value=\"" . get_string('cancel') . "\" name=\"submitbutton4\"\nonClick=\"self.close(); return false;\"><br />";
die;
}
$listid = required_param('listid', PARAM_INT);
if (!$listid) {
$listnumber = $scannedpage->listnumber;
} else {
$list = $DB->get_record('offlinequiz_p_lists', array('id' => $listid));
$scannedpage->listnumber = intval($list->number);
$scannedpage->status = 'ok';
/**
* Processes the markings on a scanned list of paritipants page
*
* @param unknown_type $offlinequiz
* @param offlinequiz_participants_scanner $scanner
* @param unknown_type $scannedpage
* @param unknown_type $teacherid
* @param unknown_type $coursecontext
* @return unknown
*/
function offlinequiz_process_scanned_participants_page($offlinequiz, offlinequiz_participants_scanner $scanner, $scannedpage, $teacherid, $coursecontext)
{
global $DB;
// Check the participants entries.
$participants = $scanner->get_participants();
if (!property_exists($scannedpage, 'participants') || empty($scannedpage->participants)) {
$scannedpage->participants = $participants;
}
$insecuremarkings = false;
if (!empty($participants)) {
foreach ($participants as $participant) {
$choice = new StdClass();
$choice->scannedppageid = $scannedpage->id;
$choice->userid = $participant->userid;
if ($participant->value == 'unknown' || $participant->userid == 0) {
$choice->value = -1;
$insecuremarkings = true;
} else {
if ($participant->value == 'marked') {
$choice->value = 1;
} else {
$choice->value = 0;
}
}
if (is_string($participant->userid) && ($intuserid = intval($participant->userid))) {
$participant->userid = $intuserid;
}
if ($participant->userid != false) {
$choice->userid = $participant->userid;
} else {
$choice->userid = 0;
}
// We really want to save every single choice in the database.
if ($choice->userid) {
if (!($oldchoice = $DB->get_record('offlinequiz_p_choices', array('scannedppageid' => $scannedpage->id, 'userid' => $choice->userid)))) {
$choice->id = $DB->insert_record('offlinequiz_p_choices', $choice);
} else {
$DB->set_field('offlinequiz_p_choices', 'value', $choice->value, array('id' => $oldchoice->id));
}
}
}
}
if ($scannedpage->status == 'ok' && $insecuremarkings) {
$scannedpage->status = 'error';
$scannedpage->error = 'insecuremarkings';
$scannedpage->time = time();
$DB->update_record('offlinequiz_scanned_p_pages', $scannedpage);
}
// Check if all users are in the offlinequiz_p_list.
if ($scannedpage->status == 'ok') {
$list = $DB->get_record('offlinequiz_p_lists', array('offlinequizid' => $offlinequiz->id, 'number' => $scannedpage->listnumber));
$userdata = $DB->get_records('offlinequiz_participants', array('listid' => $list->id));
// Index the user data by userid.
$users = array();
foreach ($userdata as $user) {
$users[$user->userid] = $user->userid;
}
foreach ($participants as $participant) {
if ($participant->userid > 0 && empty($users[$participant->userid])) {
$scannedpage->status = 'error';
$scannedpage->error = 'usernotinlist';
$DB->update_record('offlinequiz_scanned_p_pages', $scannedpage);
}
}
}
return $scannedpage;
}