uid) {
$account = $user;
}
$perm = certificate_can_access_certificate($node, $user);
if ($perm != 1) {
//$perm is a string! show error.
return $perm;
}
$admin = user_access('administer certificates');
$view_all = user_access('view all user certificates');
// Use account of a different user if allowed.
if (($admin || $view_all) && arg(3) > 0) {
$account = user_load(arg(3));
}
return certificate_single($account, $node);
}
/**
* Generate a single certificate.
*
* Check to see if user already has a certificate for a course. If so, serve it from the DB. If not, generate one and save it to the DB.
*/
function certificate_single($account, $node) {
global $user;
$output = '';
// Preview.
$preview = isset($_GET['preview']) && user_access('administer certificates');
// See if user already has a snapshotted certificate for a course. If so, grab
// from the DB. If not, generate a new one.
if (variable_get('certificate_snapshots', 0) && $snapshot = certificate_snapshot_load($account, $node)) {
$output = $snapshot['snapshot'];
}
else {
$hooks = module_invoke_all('certificate_map_options');
$sql = "SELECT * FROM {certificate_node} WHERE nid = 0 or nid = :nid ORDER BY nid ASC";
$result = db_query($sql, array(':nid' => $node->nid));
$mapping = array();
while ($row = $result->fetch()) {
$mapping[$row->mapper][$row->type] = $row->template;
}
foreach (array_keys($hooks) as $map_type) {
if (!empty($mapping[$map_type])) {
$matches = module_invoke_all('certificate_map', $node, $user, $map_type, array_keys(array_filter((array) $mapping[$map_type])), array());
if (count($matches)) {
$template_id = $mapping[$map_type][$matches[0]]; // First one for now.
}
}
}
drupal_alter('certificate_template_id', $template_id, $node, $account);
$template = node_load($template_id);
if ($template && $node) {
// Prepend output with UTF 8 meta tag.
// See http://code.google.com/p/wkhtmltopdf/issues/detail?id=556
// Print module gets around this because the meta tag in Drupal is already
// set - but here, we have to add it since we are only delivering the node
// body.
$output = '' . theme('certificate_certificate', array('node' => $node, 'account' => $account, 'template' => $template)) . '';
// Now save this generated certificate as a 'snapshot' in the database.
$snapshot['uid'] = $account->uid;
$snapshot['nid'] = $node->nid;
$date = getdate();
$snapshot['date'] = $date[0];
$snapshot['snapshot'] = $output;
if (!$preview) {
certificate_snapshot_save($snapshot);
}
}
else {
return t('Sorry, there is no certificate available.');
}
}
$print_pdf_pdf_tool = variable_get('print_pdf_pdf_tool', '');
if ($print_pdf_pdf_tool == '') {
if ($user->uid == 1) {
drupal_set_message(t('Certificate cannot be displayed because you have not selected a PDF generation tool in !link.', array('!link' => l('Printer, e-mail and PDF versions', 'admin/config/user-interface/print/pdf'))) . '.', 'error');
}
else {
drupal_set_message(t('PDF generation tool is not configured.'));
}
return ' ';
}
module_load_include('pages.inc', 'print_pdf', 'print_pdf');
if ($preview) {
print $output;
}
else {
certificate_print_pdf_wrapper($node->title . '.pdf', $output, isset($template) ? $template->certificate['orientation'] : variable_get('print_pdf_page_orientation', PRINT_PDF_PAGE_ORIENTATION_DEFAULT));
}
}
/**
* Preview certificate template as PDF.
*/
function certificate_preview($template_id) {
global $user;
$template = node_load($template_id);
if ($template) {
$output = '' . theme('certificate_certificate', array('node' => NULL, 'account' => $user, 'template' => $template)) . '';
}
$print_pdf_pdf_tool = variable_get('print_pdf_pdf_tool', '');
if ($print_pdf_pdf_tool == '') {
drupal_set_message(t('Certificate cannot be displayed because you have not selected a PDF generation tool in !link.', array('!link' => l('Printer, e-mail and PDF versions', 'admin/config/user-interface/print/pdf'))) . '.', 'error');
return '';
}
certificate_print_pdf_wrapper($template->title . '.pdf', $output, $template->certificate['orientation']);
}
/**
* Theme a single certificate.
*
* Does token replace (new style [], and old style %)
*
* @param $account
* The user account being viewed.
*
* @ingroup themeable
*
* @return The certificate HTML with all tokens translated.
*/
function theme_certificate_certificate($variables) {
$node = $variables['node'];
$account = $variables['account'];
$template = $variables['template'];
$types = array(
'global' => NULL,
'node' => $node,
'user' => $account,
);
$field_items = field_get_items('node', $template, 'body');
$body = $field_items[0]['value'];
// Invoke hook_certificate_body_alter() to allow all modules to alter the template body.
drupal_alter('certificate_body', $body, $account, $node);
if (module_exists('token')) {
if (module_exists('purl')) {
purl_disable(TRUE);
}
$body = token_replace($body, $types);
}
$format = $field_items[0]['format'];
$body = check_markup($body, $format);
return $body;
}
/**
* Wrapper to use correct Print API functions across versions.
*/
function certificate_print_pdf_wrapper($filename, $html, $orientation) {
module_load_include('pages.inc', 'print_pdf', 'print_pdf');
// Rewrite image URLs using Print.
$pattern = '!<(img\s[^>]*?)>!is';
$html = preg_replace_callback($pattern, '_print_rewrite_urls', $html);
if (function_exists('_print_scan_libs')) {
// Print 2.x
$meta = array(
'url',
'name',
'title',
'node',
);
print_pdf_generate_html($html, $meta, $filename, NULL, $orientation);
}
else {
// Print 1.x
global $conf;
$conf['print_pdf_page_orientation'] = $orientation;
print_pdf_generate_html(array('node' => NULL), $html, $filename);
}
exit;
}