private function setup_sandbox()
{
global $CFG;
$sandbox = $this->sandbox;
if ($sandbox === null) {
$this->sandbox = $sandbox = $this->get_best_sandbox($this->language);
if ($sandbox === null) {
throw new coderunner_exception("Language {$this->language} is not available on this system");
}
} else {
if (!get_config('qtype_coderunner', strtolower($sandbox) . '_enabled')) {
throw new coderunner_exception("Question is configured to use a disabled sandbox ({$sandbox})");
}
}
$sandboxes = qtype_coderunner_sandbox::available_sandboxes();
$sandboxclass = $sandboxes[$sandbox];
$filename = qtype_coderunner_sandbox::get_filename($sandbox);
require_once $CFG->dirroot . "/question/type/coderunner/sandbox/{$filename}";
$this->sandboxinstance = new $sandboxclass();
}
