/**
* 根据用户判断用户所在的省份和专业是否有题目，缓存24小时、依赖题库数量的变化
* @param $user
* @return bool
*/
public static function checkIsExist($user)
{
$dependency = new DbDependency(['sql' => 'select count(*) from testLibrary']);
$result = TestLibrary::getDb()->cache(function () use($user) {
return TestLibrary::findOne(['provinceId' => $user['provinceId'], 'majorJobId' => $user['majorJobId']]);
}, 24 * 3600, $dependency);
if ($result) {
return true;
}
return false;
}
