public function placeholderCallback($matches)
{
// Only sections defined in the event can be referenced
if (!GenericSectionUpdater::isSectionBeingEvaluated($matches[1])) {
return $matches[0];
}
// System:id links
if ($matches[2] == 'system:id') {
if (isset($_POST[$matches[1]]['system:id'])) {
return $_POST[$matches[1]]['system:id'];
}
$replacement_key = '{@system-id:' . $matches[1] . '@}';
self::$temporary_unreolved_links[] = array('target-handle' => $matches[1], 'field-name' => $matches[2], 'replacement-key' => $replacement_key);
return $replacement_key;
}
return $_POST[$matches[1]][$matches[2]];
}
