在Laravel中从多对多关系中获取价值

Question

I'm trying to get value from my tables with many to many relationship. My relation are: User:

public function roles()
    {
        return $this->belongsToMany('App\Role',"users_roles","usersid","rolesid");
}

Role:

public function users()
    {
        return $this->belongsToMany('App\User',"users_roles","usersid","rolesid");
}

I did this in my view:

@foreach($users as $user)
                    <?php $i++; ?>
                        <tr>
                            <td>{{ $i }}</td>
                            <td>{{$user->name}}</td>
                            <td>{{$user->email}}</td>
                            <td>{{$user->roles->role}}</td>
                        <tr>

@endforeach

I'm getting following error: Undefined index: role

But when i do {{$user->roles}}, I get following:

[{"id":1,"role":"Administrator","created_at":null,"updated_at":null,"pivot":{"usersid":4,"rolesid":1}}]

Can anyone tell me where did i go wrong?

Answer 1

You can do

<td>
    @if($user->roles)
        {{$user->roles->first()->role}}
    @else
        No role for this user
    @endif
</td>

You need to use Eager load when you are fetching the users