/**
* Generate the PDF from a job
* if no job->id is passed then groups all attempts with the same:
* userid, quiz and timestamp with status=JOB_STATUS_WAITING in a multipage PDF
* returns the number of attempts rendered and the pdf path produced.
* @param unknown_type $job
*/
function generateJobs($job)
{
global $CFG;
try {
/**
* Avoid empty quizzes
*/
$quiz = get_record("quiz", "id", $job->quiz);
if (!$quiz->questions) {
throw new PDFError("The quiz is empty!!", PDFError::QUIZ_IS_EMPTY);
}
if (isset($job->id)) {
$query = "id = '{$job->id}' and quiz = '{$job->quiz}' and status = '" . JOB_STATE_WAITING . "'";
} else {
$query = "timestamp = '{$job->timestamp}' and quiz = '{$job->quiz}' and userid='{$job->userid}' and status = '" . JOB_STATE_WAITING . "'";
}
print "Getting pdf jobs with query: {$query}\n";
if (!($jobs = get_records_select('blended_jobs', $query))) {
echo "<p>There are no jobs: job's timestamp: {$job->timestamp} job's quiz: {$job->quiz}</p>\n";
return array(0, null);
}
// Mark all jobs as BUSY
if (isset($job->id)) {
set_field('blended_jobs', 'status', JOB_STATE_BUSY, 'id', $job->id, 'quiz', $job->quiz);
} else {
set_field('blended_jobs', 'status', JOB_STATE_BUSY, 'timestamp', $job->timestamp, 'quiz', $job->quiz, 'userid', $job->userid);
}
$numberpaperquiz = count($jobs);
$pdf = new TCPDF(PDF_PAGE_ORIENTATION, PDF_UNIT, PDF_PAGE_FORMAT, true, 'UTF-8', false);
$pdf->SetPrintHeader(false);
$pdf->SetPrintFooter(false);
$pdfFile = blended_prepare_and_get_paths($job, $quiz);
debugging("<p> Processing job from user {$job->userid}. Quiz with id={$job->quiz}</p>\n");
echo "<p>Generating {$numberpaperquiz} quizes out of <a href=\"{$CFG->wwwroot}/mod/quiz/view.php?q={$quiz->id}\">\"{$quiz->name}\"</a></p>\n";
debugging("<p>PDFfile: {$pdfFile->Path}</p>");
foreach ($jobs as $quiz_job) {
// parse formatting options into an array
$options = array_explode('=', ',', $quiz_job->options);
$blended = get_records('blended', 'id', $quiz_job->blended);
if (!($attemptdata = get_records('blended_attempts', 'id', $quiz_job->attempt_id))) {
echo "Error ";
}
$a = 0;
foreach ($attemptdata as $attempt) {
echo "<p>Generating quiz number " . ($a + 1) . "...\n";
try {
if (!$attempt->layout) {
throw new PDFError("El cuestionario no contiene ninguna pregunta", PDFError::QUIZ_IS_EMPTY);
}
$start = microtime(true);
/**
* Actually generate the PDF document
*/
$pdf = blended_generate_quiz($attempt, $quiz, $pdf, $blended["{$quiz_job->blended}"], $options, $pdfFile);
$printtime = (microtime(true) - $start) * 1000;
mtrace(" done in {$printtime} (ms)</p>");
$attempt->status = JOB_STATE_FINISHED;
$quiz_job->status = JOB_STATE_FINISHED;
} catch (PDFError $e) {
echo "Error creating a page for quiz " . $quiz_job->attempt_id . " Continuing\n";
echo "<BR>" . $e->getMessage() . "";
$attempt->status = JOB_STATE_IN_ERROR;
$quiz_job->status = JOB_STATE_IN_ERROR;
}
update_record('blended_attempts', $attempt);
update_record('blended_jobs', $quiz_job);
$a = $a + 1;
}
}
$pdf->Output($pdfFile->Path, 'F');
} catch (PDFError $e) {
debugging("Fatal PDF error: " . $e->getMessage());
foreach ($jobs as $quiz_job) {
$quiz_job->status = JOB_STATE_IN_ERROR;
update_record('blended_jobs', $quiz_job);
delete_records('blended_attempts', 'status', JOB_STATE_IN_ERROR, 'id', $quiz_job->attempt_id);
}
return array(0, null);
}
return array($a, $pdfFile);
}
}
if (has_capability('mod/blended:deletejob', $context)) {
$imgdelete = "<img src=\"delete.gif\"/>";
$link = "<a href=\"edit_paperquiz.php?delete={$job->timestamp}&a={$blended->id}\">{$imgdelete}</a>";
$delete = $link;
}
//print $estado;
if ($estado !== 'terminado') {
if (has_capability('mod/blended:launchjob', $context)) {
$link_assignment_page = "<a href=\"generateQuizesPDF.php?jobid={$job->id}&launch={$job->timestamp}&a={$blended->id}\">" . get_string('runTask', 'blended') . "</a>";
$launch = $link_assignment_page;
}
} else {
//$quiz = $DB->get_record('quiz', "id", $job->quiz);
$quiz = $DB->get_record('quiz', array('id' => $job->quiz));
$pdfFile = blended_prepare_and_get_paths($job, $quiz);
$launch = "<a href=\"{$CFG->wwwroot}/file.php/{$pdfFile->RelativePath}?forcedownload=1\">" . get_string('viewPDF', 'blended') . "</a>";
}
$fecha = date("Y-m-d-H-i-s", $job->timestamp);
//$user_reg = $DB->get_record($table='user', $field='id', $value=$job->userid);
$user_reg = $DB->get_record('user', array('id' => $USER->id));
$fullname = fullname($user_reg);
$jobrow = array();
$jobrow["name"] = $job->quiz_name;
$jobrow["date"] = $fecha;
$jobrow["estado"] = $statusMsg;
$jobrow["userid"] = $fullname;
$jobrow["delete"] = $delete;
$jobrow["launch"] = $launch;
$jobs[$i] = $jobrow;
unset($status);
