S2OJ/web/app/models/UOJCustomTestSubmission.php

<?php

class UOJCustomTestSubmission {
	use UOJSubmissionLikeTrait;

	public static function query(UOJProblem $problem, array $user = null) {
		if (!$user) {
			return null;
		}
		$info = DB::selectFirst([
		    "select * from custom_test_submissions",
		    "where", [
			    "submitter" => $user['username'],
			    "problem_id" => $problem->info['id']
		    ], "order by id desc limit 1"
		]);
		if (!$info) {
			return null;
		}
		$subm = new UOJCustomTestSubmission($info);
		return $subm->setProblem(['problem' => $problem]) ? $subm : null;
	}

	public function __construct($info) {
		$this->info = $info;
	}

	public static function onUpload($zip_file_name, $content, $tot_size) {
		$content['config'][] = ['problem_id', UOJProblem::info('id')];
		$content['config'][] = ['custom_test', 'on'];
		$content_json = json_encode($content);
        
		static::getAndRememberSubmissionLanguage($content);

		$result = ['status' => "Waiting"];
		$result_json = json_encode($result);
		
		DB::insert([
            "insert into custom_test_submissions",
            "(problem_id, submit_time, submitter, content, status, result)",
            "values", DB::tuple([
                UOJProblem::info('id'), DB::now(), Auth::id(), $content_json,
                $result['status'], $result_json
            ])
        ]);
	}
}