在moodle中context是表示什么?
以下代码在accesslib.php中
/**
* This hacky function is needed because we can not change system context instanceid using normal upgrade routine.
*/
function get_system_context($cache=true) {...}
以下代码在setup.php中
// define SYSCONTEXTID in config.php if you want to save some queries (after install or upgrade!)
if (!defined('SYSCONTEXTID')) {
get_system_context();
// echo "context<br>"; // when debugging
}
不解context为何物,请教.