[Xerte] Re: certificate printing by student if quiz passed
Patrick Lockley
Patrick.Lockley at nottingham.ac.uk
Fri Feb 4 22:29:19 GMT 2011
am wondering if you could use an RLM to make a results page in the style of the PDF. Then autoprint?
________________________________________
From: xerte-bounces at lists.nottingham.ac.uk [xerte-bounces at lists.nottingham.ac.uk] On Behalf Of KnowledgeWare [knowledgeware at kccsoft.com]
Sent: Friday, February 04, 2011 9:39 PM
To: Paul.Swanson at harlandfs.com; 'Xerte discussion list'
Subject: [Xerte] Re: certificate printing by student if quiz passed
Thanks Paul! You’ve done some work on this obviously!
RonM2
From: Paul Swanson [mailto:Paul.Swanson at harlandfs.com]
Sent: Friday, February 04, 2011 1:11 PM
To: knowledgeware at kccsoft.com; Xerte discussion list
Subject: RE: [Xerte] Re: certificate printing by student if quiz passed
I pass information from Xerte to a PHP script that, after saving information to a MySQL database, uses an FPDF library to create a PDF certificate that the user downloads and can print or save. In Xerte, I have a script icon that runs after the quiz is taken. This runs whether or not the user passes.
// url of PHP script
URLString = 'http://myDomain/pathToScript/db_queries.php';
// pass values to external script
saveVars = new LoadVars ();
saveVars.action = 'saveData';
saveVars.sid = student.id;
saveVars.totCorrect = totCorrect;
saveVars.quesCount = quesCount;
saveVars.testTries = student.testTries;
saveVars.testStartDate = student.testStartDate;
saveVars.score = score;
saveVars.pass = scorePath; // scorePath will be 0 if score < 80, otherwise it will be 1
saveVars.complete = scorePath; // only set complete to 1 if student passed
saveVars.institution = student.institution;
saveVars.email = student.email;
saveVars.name = student.fname + ' ' + student.lname;
saveVars.product = productName;
saveVars.courseName = courseTitle;
// send to db
testScore.sendAndLoadVars(URLString, saveVars);
Then, my PHP script has (among other things):
// pass -- boolean indicating whether student passed
if (isset ($_POST['pass']) && is_numeric ($_POST['pass'])) {
$pass = (int) $_POST['pass'];
// if $pass == 1 set active to 0 (false) so user would have to re-register to take again
if ($pass == 1) {
$active = 0;
// need to send email with certificate
// must have courseName, student name, institution, completion date and email
if (isset ($_POST['courseName'], $_POST['name'], $_POST['institution'], $_POST['email'])) {
$completion_date = date ('m/d/Y');
$url = 'http://' . $_SERVER['HTTP_HOST'] . '/wbt/certificate_link.php?';
$certCourseTitle = ($_POST['product'] == 'SBA Lending Solution' ? 'SBA Lending Solution' : $_POST['courseName']);
$qString = "courseName=$certCourseTitle&name={$_POST['name']}&company={$_POST['institution']}&completionDate=$completion_date";
// encrypt $qString
$rc4 = new rc4crypt;
$encString = $rc4->endecrypt('someCipherSalt',$qString);
$to = "{$_POST['email']}";
$from = "Education at example.com\r\n";
$headers = 'MIME-Version: 1.0' . "\r\n";
$headers .= 'Content-type: text/html; charset=iso-8859-1' . "\r\n";
$headers .= "From: $from\r\n";
$subject = "Certificate of Completion for {$_POST['product']} {$_POST['courseName']}";
$body = "<body style=\"font-family:arial;font-size:12pt;\">
<p>Congratulations on passing the {$_POST['product']}<sup>®</sup> {$_POST['courseName']}!</p>
<p>A Certificate of Completion for you is waiting at <a href=\"http://{$_SERVER['HTTP_HOST']}/wbt/certificate_link.php?data=$encString\">this link</a>. Recertification is required after one year.</p>
<p>When you open the link, you will be asked whether to open or save
the file. If you select Open, be sure to save the file after viewing
or printing.</p>
</body>";
$mail_success = mail ($to, $subject, $body, $headers, "-fEducation at example.com");
The encryption code is something I copied from the FPDF library. The script that creates the PDF file after the user clicks the encrypted link in their email:
<?php # certificate_link.php
/*
This script creates a pdf certificate of completion.
*/
// initialize variables
$course = FALSE;
$name = FALSE;
$company = FALSE;
$date = FALSE;
// class to encrypt/decrypt strings
class rc4crypt {
function endecrypt ($pwd, $data, $case='') {
if ($case == 'de') {
$data = urldecode($data);
}
$key[] = "";
$box[] = "";
$temp_swap = "";
$pwd_length = 0;
$pwd_length = strlen($pwd);
for ($i = 0; $i <= 255; $i++) {
$key[$i] = ord(substr($pwd, ($i % $pwd_length), 1));
$box[$i] = $i;
}
$x = 0;
for ($i = 0; $i <= 255; $i++) {
$x = ($x + $box[$i] + $key[$i]) % 256;
$temp_swap = $box[$i];
$box[$i] = $box[$x];
$box[$x] = $temp_swap;
}
$temp = "";
$k = "";
$cipherby = "";
$cipher = "";
$a = 0;
$j = 0;
for ($i = 0; $i < strlen($data); $i++) {
$a = ($a + 1) % 256;
$j = ($j + $box[$a]) % 256;
$temp = $box[$a];
$box[$a] = $box[$j];
$box[$j] = $temp;
$k = $box[(($box[$a] + $box[$j]) % 256)];
$cipherby = ord(substr($data, $i, 1)) ^ $k;
$cipher .= chr($cipherby);
}
if ($case == 'de') {
$cipher = urldecode(urlencode($cipher));
} else {
$cipher = urlencode($cipher);
}
return $cipher;
}
} // end of class rc4crypt
// require the fpdf script
require_once $_SERVER['DOCUMENT_ROOT'] . '/fpdf/fpdf.php';
// require subwrite script to allow superscript/subscripts
require_once $_SERVER['DOCUMENT_ROOT'] . '/fpdf/subwrite.php';
// require fpdf_protection script to add security to the document
require_once $_SERVER['DOCUMENT_ROOT'] . '/fpdf/tools/fpdf_protection.php';
// validate required data
if (isset ($_GET['data'])) {
// decrypt data
$rc4 = new rc4crypt;
$deString = $rc4->endecrypt('someCipherSalt', $_GET['data'], 'de');
$qString = $deString;
// parse string into parts
parse_str ($qString);
// convert date
$date = date ('F jS, Y', strtotime ($completionDate));
} // end of $_GET['data'] conditional
// create pdf if required fields present
if ($course && $name && $company && $date) {
$pdf = new FPDF_Protection();
$pdf->SetProtection(array('print'),'','somePassword'); // restrict to view and print, no user password, owner password needed to edit doc
$pdf->SetMargins(72,96,72);
$pdf->SetLineWidth(20);
$pdf->SetDrawColor(0, 128, 0);
$pdf->SetFillColor(197, 255, 197);
$pdf->AddPage();
$pdf->Rect(0, 0, 790, 610, 'DF');
$pdf->Ln();
$pdf->SetFont('Times', 'BI');
$pdf->SetFontSize(36);
$pdf->Cell(0, 48, 'Certificate of Completion', 0, 1, 'C');
$pdf->Ln();
$pdf->SetFontSize(24);
$pdf->Cell(0, 24, "$name", 0, 1, 'C');
$pdf->SetFont('', 'I');
$pdf->SetFontSize(18);
$pdf->Cell(0, 18, "of", 0, 1, 'C');
$pdf->SetFont('', 'BI');
$pdf->SetFontSize(24);
$pdf->Cell(0, 24, "$company", 0, 1, 'C');
$pdf->Ln();
$pdf->SetFont('', 'I');
$pdf->SetFontSize(20);
$pdf->Cell(0, 24, "has achieved certification in", 0, 1, 'C');
$pdf->Ln();
$pdf->SetFont('', 'BI');
$pdf->SetFontSize(24);
$pdf->Cell(36, 24, '', 0, 0, 'L');
// modify course name if $course == 'SBA Lending Solution'
if ($course == 'SBA Lending Solution Exam') {
$pdf->Cell(120, 24, '', 0, 0, 'L');
$pdf->Cell(225, 24, 'SBA Lending Solution', 0, 0, 'L');
$pdf->subWrite(24, '®', '', 12, 9);
$pdf->Cell(0, 24, ' Exam', 0, 1, 'L');
} else {
$pdf->Cell(36, 24, '', 0, 0, 'L');
$pdf->Cell(92, 24, 'LaserPro', 0, 0, 'L');
$pdf->subWrite(24, '®', '', 12, 9);
$pdf->Cell(0, 24, $course, 0, 1, 'L');
}
$pdf->Ln();
$pdf->SetFont('', 'I');
$pdf->SetFontSize(18);
$pdf->Cell(0, 18, "on", 0, 1, 'C');
$pdf->SetFontSize(24);
$pdf->Cell(0, 24, "$date", 0, 1, 'C');
$pdf->Image('hfs_hc_background.png', 100, 465, 207, 32, 'png');
$pdf->Image('cert_sig.png', 400, 460, 285, 80, 'png');
// create file if $certDest and $certFile exist, otherwise display in browser
if ($certDest && $certFile) {
$pdf->Output($certDest . $certFile . str_replace (' ', '_', $course) . '.pdf', "F");
} else {
//$pdf->Output();
$pdf->Output('LaserPro_' . str_replace (' ', '_', $course) . '.pdf', 'D');
}
} else {
echo "<p>Required data missing, no file created.</p>\n\n";
}
?>
FPDF can be found here: http://www.fpdf.org/
Of course, all this requires that your course is on the web, your web server has PHP installed and configured and you’ve installed the FPDF library.
Cheers,
Paul
From: xerte-bounces at lists.nottingham.ac.uk [mailto:xerte-bounces at lists.nottingham.ac.uk] On Behalf Of KnowledgeWare
Sent: Friday, February 04, 2011 12:03 PM
To: 'Xerte discussion list'
Subject: [Xerte] Re: certificate printing by student if quiz passed
Wow it’s great to see the volume of this list expanding..but hard to keep up!
I’m wondering if anyone has built a page to print a student certificate or has suggestions around how to do this. Ideally, if the student passes the quiz I’d like to allow them to print a certificate and/or email it to themselves from xerte (not LMS). Anyone doing this now?
TIA
RonM2
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