/**
* Creates a personalized exam file.
*
* @param unknown $examid
* @return NULL
*/
function emarking_download_exam($examid, $multiplepdfs = false, $groupid = null, progress_bar $pbar = null, $sendprintorder = false, $idprinter = null, $printanswersheet = false, $debugprinting = false)
{
global $DB, $CFG, $USER, $OUTPUT;
require_once $CFG->dirroot . '/mod/emarking/lib/openbub/ans_pdf_open.php';
// Validate emarking exam object
if (!($downloadexam = $DB->get_record('emarking_exams', array('id' => $examid)))) {
throw new Exception(get_string("invalidexamid", "mod_emarking"));
}
// Contexto del curso para verificar permisos
$context = context_course::instance($downloadexam->course);
if (!has_capability('mod/emarking:downloadexam', $context)) {
throw new Exception(get_string("invalidaccess", "mod_emarking"));
}
// Verify that remote printing is enable, otherwise disable a printing order
if ($sendprintorder && (!$CFG->emarking_enableprinting || $idprinter == null)) {
throw new Exception('Printing is not enabled or printername was absent ' . $idprinter);
}
// Validate course
if (!($course = $DB->get_record('course', array('id' => $downloadexam->course)))) {
throw new Exception(get_string("invalidcourse", "mod_emarking"));
}
// Validate course category
if (!($coursecat = $DB->get_record('course_categories', array('id' => $course->category)))) {
throw new Exception(get_string("invalidcategoryid", "mod_emarking"));
}
// We tell the user we are setting up the printing
if ($pbar) {
$pbar->update(0, 1, get_string('settingupprinting', 'mod_emarking'));
}
// Default value for enrols that will be included
if ($CFG->emarking_enrolincludes && strlen($CFG->emarking_enrolincludes) > 1) {
$enrolincludes = $CFG->emarking_enrolincludes;
}
// If the exam sets enrolments, we use those
if (isset($downloadexam->enrolments) && strlen($downloadexam->enrolments) > 1) {
$enrolincludes = $downloadexam->enrolments;
}
// Convert enrolments to array
$enrolincludes = explode(",", $enrolincludes);
// Produce all PDFs first separatedly
$filedir = $CFG->dataroot . "/temp/emarking/{$context->id}";
$fileimg = $filedir . "/qr";
$userimgdir = $filedir . "/u";
$pdfdir = $filedir . "/pdf";
emarking_initialize_directory($filedir, true);
emarking_initialize_directory($fileimg, true);
emarking_initialize_directory($userimgdir, true);
emarking_initialize_directory($pdfdir, true);
// Get all the files uploaded as forms for this exam
$fs = get_file_storage();
$files = $fs->get_area_files($context->id, 'mod_emarking', 'exams', $examid);
// We filter only the PDFs
$pdffileshash = array();
foreach ($files as $filepdf) {
if ($filepdf->get_mimetype() === 'application/pdf') {
$pdffileshash[] = array('hash' => $filepdf->get_pathnamehash(), 'filename' => $filepdf->get_filename(), 'path' => emarking_get_path_from_hash($filedir, $filepdf->get_pathnamehash()));
}
}
// Verify that at least we have a PDF
if (count($pdffileshash) < 1) {
throw new Exception(get_string("examhasnopdf", "mod_emarking"));
}
$students = emarking_get_students_for_printing($downloadexam->course);
$studentinfo = array();
$currenttemplate = 0;
// Fill studentnames with student info (name, idnumber, id and picture)
foreach ($students as $student) {
$studentenrolments = explode(",", $student->enrol);
// Verifies that the student is enrolled through a valid enrolment and that we haven't added her yet
if (count(array_intersect($studentenrolments, $enrolincludes)) == 0 || isset($studentinfo[$student->id])) {
continue;
}
// We create a student info object
$studentobj = new stdClass();
$studentobj->name = substr("{$student->lastname}, {$student->firstname}", 0, 65);
$studentobj->idnumber = $student->idnumber;
$studentobj->id = $student->id;
$studentobj->picture = emarking_get_student_picture($student, $userimgdir);
// Store student info in hash so every student is stored once
$studentinfo[$student->id] = $studentobj;
}
// We validate the number of students as we are filtering by enrolment
// type after getting the data
$numberstudents = count($studentinfo);
if ($numberstudents == 0) {
throw new Exception('No students to print/create the exam');
}
// Add the extra students to the list
for ($i = $numberstudents; $i < $numberstudents + $downloadexam->extraexams; $i++) {
$studentobj = new stdClass();
$studentobj->name = '..............................................................................';
$studentobj->idnumber = 0;
$studentobj->id = 0;
$studentobj->picture = $CFG->dirroot . "/pix/u/f1.png";
$studentinfo[] = $studentobj;
}
// Check if there is a logo file
$logofilepath = emarking_get_logo_file($filedir);
// If asked to do so we create a PDF witht the students list
if ($downloadexam->printlist == 1) {
$pdf = new FPDI();
$pdf->SetPrintHeader(false);
$pdf->SetPrintFooter(false);
emarking_draw_student_list($pdf, $logofilepath, $downloadexam, $course, $studentinfo);
$studentlistpdffile = $pdfdir . "/000-studentslist.pdf";
$pdf->Output($studentlistpdffile, "F");
// se genera el nuevo pdf
$pdf = null;
}
// Here we produce a PDF file for each student
$currentstudent = 0;
foreach ($studentinfo as $stinfo) {
// If we have a progress bar, we notify the new PDF being created
if ($pbar) {
$pbar->update($currentstudent + 1, count($studentinfo), $stinfo->name);
}
// We create the PDF file
$pdf = new FPDI();
$pdf->SetPrintHeader(false);
$pdf->SetPrintFooter(false);
// We use the next form available from the list of PDF forms sent
if ($currenttemplate >= count($pdffileshash) - 1) {
$currenttemplate = 0;
} else {
$currenttemplate++;
}
// Load the PDF from the filesystem as template
$path = $pdffileshash[$currenttemplate]['path'];
$originalpdfpages = $pdf->setSourceFile($path);
$pdf->SetAutoPageBreak(false);
// Add all pages in the template, adding the header if it corresponds
for ($pagenumber = 1; $pagenumber <= $originalpdfpages + $downloadexam->extrasheets; $pagenumber++) {
// Adding a page
$pdf->AddPage();
// If the page is not an extra page, we import the page from the template
if ($pagenumber <= $originalpdfpages) {
$template = $pdf->importPage($pagenumber);
$pdf->useTemplate($template, 0, 0, 0, 0, true);
}
// If we have a personalized header, we add it
if ($downloadexam->headerqr) {
emarking_draw_header($pdf, $stinfo, $downloadexam->name, $pagenumber, $fileimg, $logofilepath, $course, $originalpdfpages + $downloadexam->extrasheets);
}
}
// The filename will be the student id - course id - page number
$qrstringtmp = $stinfo->id > 0 ? "{$stinfo->id}-{$course->id}-{$pagenumber}" : "NN{$currentstudent}+1-{$course->id}-{$pagenumber}";
// Create the PDF file for the student
$pdffile = $pdfdir . "/" . $qrstringtmp . ".pdf";
$pdf->Output($pdffile, "F");
// Store the exam file for printing later
$stinfo->examfile = $pdffile;
$stinfo->number = $currentstudent + 1;
$stinfo->pdffilename = $qrstringtmp;
$currentstudent++;
}
$sqlprinter = "SELECT id, name, command\n\t\t\tFROM {emarking_printers}\n\t\t\tWHERE id = ?";
$printerinfo = $DB->get_record_sql($sqlprinter, array($idprinter));
// If we have to print directly
$debugprintingmsg = '';
if ($sendprintorder) {
// Check if we have to print the students list
if ($downloadexam->printlist == 1) {
$printresult = emarking_print_file($printerinfo->name, $printerinfo->command, $studentlistpdffile, $debugprinting);
if (!$printresult) {
$debugprintingmsg .= 'Problems printing ' . $studentlistpdffile . '<hr>';
} else {
$debugprintingmsg .= $printresult . '<hr>';
}
}
// Print each student
$currentstudent = 0;
foreach ($studentinfo as $stinfo) {
$currentstudent++;
if ($pbar != null) {
$pbar->update($currentstudent, count($studentinfo), get_string('printing', 'mod_emarking') . ' ' . $stinfo->name);
}
if (!isset($stinfo->examfile) || !file_exists($stinfo->examfile)) {
continue;
}
$printresult = emarking_print_file($printerinfo->name, $printerinfo->command, $stinfo->examfile, $debugprinting);
if (!$printresult) {
$debugprintingmsg .= 'Problems printing ' . $stinfo->examfile . '<hr>';
} else {
$debugprintingmsg .= $printresult . '<hr>';
}
}
if ($CFG->debug || $debugprinting) {
echo $debugprintingmsg;
}
// Notify everyone that the exam was printed
emarking_send_examprinted_notification($downloadexam, $course);
$downloadexam->status = EMARKING_EXAM_SENT_TO_PRINT;
$downloadexam->printdate = time();
$DB->update_record('emarking_exams', $downloadexam);
return true;
}
$examfilename = emarking_clean_filename($course->shortname, true) . "_" . emarking_clean_filename($downloadexam->name, true);
$zipdebugmsg = '';
if ($multiplepdfs) {
$zip = new ZipArchive();
$zipfilename = $filedir . "/" . $examfilename . ".zip";
if ($zip->open($zipfilename, ZipArchive::CREATE) !== true) {
throw new Exception('Could not create zip file');
}
// Check if we have to print the students list
if ($downloadexam->printlist == 1) {
$zip->addFile($studentlistpdffile);
}
// Add every student PDF to zip file
$currentstudent = 0;
foreach ($studentinfo as $stinfo) {
$currentstudent++;
if ($pbar != null) {
$pbar->update($currentstudent, count($studentinfo), get_string('printing', 'mod_emarking') . ' ' . $stinfo->name);
}
if (!isset($stinfo->examfile) || !file_exists($stinfo->examfile)) {
continue;
}
if (!$zip->addFile($stinfo->examfile, $stinfo->pdffilename . '.pdf')) {
$zipdebugmsg .= "Problems adding {$stinfo->examfile} to ZIP file using name {$stinfo->pdffilename} <hr>";
}
}
$zip->close();
if ($CFG->debug || $debugprinting) {
echo $zipdebugmsg;
}
// Notify everyone that the exam was downloaded
emarking_send_examdownloaded_notification($downloadexam, $course);
$downloadexam->status = EMARKING_EXAM_SENT_TO_PRINT;
$downloadexam->printdate = time();
$DB->update_record('emarking_exams', $downloadexam);
// Read zip file from disk and send to the browser
$file_name = basename($zipfilename);
header("Content-Type: application/zip");
header("Content-Disposition: attachment; filename=" . $examfilename . ".zip");
header("Content-Length: " . filesize($zipfilename));
readfile($zipfilename);
exit;
}
// We create the final big PDF file
$pdf = new FPDI();
$pdf->SetPrintHeader(false);
$pdf->SetPrintFooter(false);
// We import the students list if required
if ($downloadexam->printlist) {
emarking_import_pdf_into_pdf($pdf, $studentlistpdffile);
}
// Add every student PDF to zip file
$currentstudent = 0;
foreach ($studentinfo as $stinfo) {
$currentstudent++;
if (!isset($stinfo->examfile) || !file_exists($stinfo->examfile)) {
continue;
}
emarking_import_pdf_into_pdf($pdf, $stinfo->examfile);
}
// Notify everyone that the exam was downloaded
emarking_send_examdownloaded_notification($downloadexam, $course);
$downloadexam->status = EMARKING_EXAM_SENT_TO_PRINT;
$downloadexam->printdate = time();
$DB->update_record('emarking_exams', $downloadexam);
$pdf->Output($examfilename . '.pdf', 'D');
}
/**
*
* @param unknown $pdf
* @param unknown $filedir
* @param unknown $stinfo
* @param unknown $logofilepath
* @param unknown $path
* @param unknown $fileimg
* @param unknown $course
* @param unknown $examname
* @param unknown $answers
* @param unknown $attemptid
*/
function emarking_add_answer_sheet($pdf, $filedir, $stinfo, $logofilepath, $path, $fileimg, $course, $examname, $answers, $attemptid)
{
global $CFG;
require_once $CFG->dirroot . '/mod/assign/feedback/editpdf/fpdi/fpdi2tcpdf_bridge.php';
require_once $CFG->dirroot . '/mod/assign/feedback/editpdf/fpdi/fpdi.php';
if ($answers == null) {
return;
}
$answerspdffilename = $filedir . '/answer' . random_string(15) . '.pdf';
$answerspdf = emarking_create_omr_answer_sheet($answers);
$answerspdf->Output($answerspdffilename, 'F');
$pdf->setSourceFile($answerspdffilename);
$tplidx = $pdf->ImportPage(1);
$s = $pdf->getTemplatesize($tplidx);
$pdf->AddPage('P', array($s['w'], $s['h']));
$pdf->useTemplate($tplidx);
if ($path) {
$pdf->setSourceFile($path);
}
$top = 50;
$left = 10;
$width = $s['w'] - 20;
$height = $s['h'] - 65;
// Corners
$style = array('width' => 0.25, 'cap' => 'butt', 'join' => 'miter', 'dash' => 0, 'color' => array(0, 0, 0));
$pdf->Circle($left, $top, 9, 0, 360, 'F', $style, array(0, 0, 0));
$pdf->Circle($left, $top, 4, 0, 360, 'F', $style, array(255, 255, 255));
$pdf->Circle($left + $width, $top, 9, 0, 360, 'F', $style, array(0, 0, 0));
$pdf->Circle($left + $width, $top, 4, 0, 360, 'F', $style, array(255, 255, 255));
$pdf->Circle($left, $top + $height, 9, 0, 360, 'F', $style, array(0, 0, 0));
$pdf->Circle($left, $top + $height, 4, 0, 360, 'F', $style, array(255, 255, 255));
$pdf->Circle($left + $width, $top + $height, 9, 0, 360, 'F', $style, array(0, 0, 0));
$pdf->Circle($left + $width, $top + $height, 4, 0, 360, 'F', $style, array(255, 255, 255));
emarking_draw_header($pdf, $stinfo, $examname, 1, $fileimg, $logofilepath, $course, null, false, true, $attemptid);
}