function getSubstitution()
{
$subs = array();
$aclman =& Docebo::user()->getAclManager();
$user = $aclman->getUser($this->id_user, false);
$subs['[display_name]'] = $user[ACL_INFO_LASTNAME] . $user[ACL_INFO_FIRSTNAME] ? $user[ACL_INFO_LASTNAME] . ' ' . $user[ACL_INFO_FIRSTNAME] : $aclman->relativeId($user[ACL_INFO_USERID]);
$subs['[username]'] = $aclman->relativeId($user[ACL_INFO_USERID]);
$subs['[firstname]'] = $user[ACL_INFO_FIRSTNAME];
$subs['[lastname]'] = $user[ACL_INFO_LASTNAME];
//variable fields
require_once $GLOBALS['where_framework'] . '/lib/lib.field.php';
$temp = new FieldList();
$fields = $temp->getFlatAllFields();
foreach ($fields as $key => $value) {
$subs['[userfield_' . $key . ']'] = $temp->showFieldForUser($this->id_user, $key);
}
return $subs;
}