/**
* Compose a timestamped message string.
*
* @param String $message Base message with placeholders
* @param array $context Additional meta-information for the log
*
* @return String $msg Log Message String
*/
protected function compose_timestamped_message($message, $context)
{
$prefix = '';
if ($this->datetime !== NULL) {
$prefix .= '[' . $this->datetime->get_datetime() . ']: ';
}
return $prefix . $this->compose_message($message, $context);
}
