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Today, I had spent 3 hours to fix one problem, The old program has a bug, originally, when a user profile don’t now allow Multi Logon, It will update the other login records of [LoginAudit] table of this user,
But the code has a problem, it may not get his final login record correctly, and will update all his login record including the final one.
Interestingly, I find out a method which Laravel provide, but never used before, Mass Update in One line of code. can you image how easy it is .
$audit = \App\LoginAudit::where(‘TrainerUserID‘, $username)
->orderBy(‘id_num‘,‘DESC‘)->firstOrFail();
Session::put(‘id_login‘, $audit->id_num);
//kick out other login session of same user
if($user->MultiLogonAllowed == ‘N‘)
{
$audit= \App\LoginAudit::where(‘TrainerUserID‘, $username)
->where(‘id_num‘, ‘<>‘, session(‘id_login‘))
->whereRaw(‘ LogoutDateTime IS NULL‘)->update([‘LogoutDateTime‘=>Carbon::now()]);
}
how to do a mass update in Laravel5 ( 在Laravel 5里面怎么做大量数据更新 )
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原文地址：http://www.cnblogs.com/grkin/p/4945030.html
