Laravel如何使用belongstomy

Laravel如何使用belongstomy,laravel,join,eloquent,has-and-belongs-to-many,laravel-eloquent,Laravel,Join,Eloquent,Has And Belongs To Many,Laravel Eloquent,我对在拉维尔使用belongtomany感到困惑。 下面是我的代码 users.php public function guser() { return $this- >belongsToMany(User::class,'reportings','user_id','reporting'); } SQL表 报告表: ID USER_ID REPORTING =====================================

我对在拉维尔使用belongtomany感到困惑。 下面是我的代码

users.php

public function guser()
{
    return $this-
>belongsToMany(User::class,'reportings','user_id','reporting');
}
SQL表

报告表:

 ID          USER_ID             REPORTING 
 ==========================================
 1            92                   95,96
用户表:

 ID          NAME
 ================
 92          Sanjay
 95          Ankur
 96          Parkar
结果:

Name                 Reporting Person
======================================
Sanjay                Ankur
预期结果:

Name                 Reporting Person
======================================
Sanjay                Ankur & Parkar

你们能帮我得到预期的结果吗。

我相信belongtomany需要一个数据透视表(这也是在数据库中存储单个值的最佳实践),所以为什么不这样做呢

无论如何,你可以这样做:

用户模型:

public function reportings()
{
    return $this->hasMany(Reporting::class);
}
此功能用于抓取用户:

public function getReporters()
{
    //This is just to grab a user, you will probably do it dynamically
    $user = User::find(92);

    $reportings = $user->reportings()->get();

    foreach ($reportings as $reporter) {
        $arr = explode(',', $reporter->reporting);

        for($i = 0; $i < count($arr); $i++) {

            $reporters[] = User::find($arr[$i]);

        }
        foreach ($reporters as $reporter) {
            //just for demo purpose
            echo $reporter->name . ' ';
        }
    }
}
公共函数getReporters() { //这只是为了抓住一个用户,您可能会动态地这样做 $user=user::find(92); $reportings=$user->reportings()->get(); foreach($reporters作为$reporter进行报告){ $arr=爆炸(“,”,$reporter->reporting); 对于($i=0;$iname.'; } } }
代码可能会从一些严重的重构中受益,但你明白了。

如何将这些多个值(95,96)存储在表中?$inp=Input::get('multireporting')$值=内爆(“,”,$inp);对于($i=0;$iuser\u id=$user->id;$news->Reporting=$values;$news->save();}