S2OJ/web/app/models/UOJList.php

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2022-11-10 00:16:48 +00:00
<?php
class UOJList {
use UOJDataTrait;
use UOJArticleTrait;
public static function query($id) {
if (!isset($id) || !validateUInt($id)) {
return null;
}
$info = DB::selectFirst([
"select * from lists",
"where", ["id" => $id]
]);
if (!$info) {
return null;
}
return new UOJList($info);
}
public function __construct($info) {
$this->info = $info;
}
public function getProblemIDs() {
return array_map(fn ($x) => $x['problem_id'], DB::selectAll([
DB::lc(), "select problem_id from lists_problems",
"where", ['list_id' => $this->info['id']],
"order by problem_id"
]));
}
public function hasProblem(UOJProblem $problem) {
return DB::selectFirst([
DB::lc(), "select 1 from lists_problems",
"where", [
'list_id' => $this->info['id'],
'problem_id' => $problem->info['id']
]
]) != null;
}
public function userCanManage(array $user = null) {
return isSuperUser($user);
}
public function userCanView(array $user = null, array $cfg = []) {
$cfg += ['ensure' => false];
if ($this->info['is_hidden'] && !$this->userCanManage($user)) {
$cfg['ensure'] && UOJResponse::page404();
return false;
}
return true;
}
}
UOJList::$table_for_content = 'lists_contents';
UOJList::$key_for_content = 'id';
UOJList::$fields_for_content = ['*'];
UOJList::$table_for_tags = 'lists_tags';
UOJList::$key_for_tags = 'list_id';