laravel中一对多的展示

Question

i am working on laravel phonebook application i want every phonebook to hasOne clients but the clients belongs to many phone books i have a column in my phonebook table called client_id now when i set relations how can i use them in controller and pass it into view as on object and here is some of my code

phonebook controller

public function index(){

$phonebooks = Phonebook::all();
$client = Phonebook::find(?dont know if its right place for it?)->client;
return view('admin.phonebooks.index',compact('phonebooks',$phonebooks),compact('client',$client));}

phonebook model

class Phonebook extends Model{protected $fillable = ['title','description','client_id','calldate','rememberdate'];public function client() {
return $this->hasOne('App\Client','id');}    }

phonebook db migration

Schema::create('phonebooks', function (Blueprint $table) {
    $table->increments('id');
    $table->text('title');
    $table->longText('description');
    $table->integer('client_id');
    $table->dateTime('calldate');
    $table->dateTime('rememberdate');
    $table->timestamps();
});

and the client db migration

Schema::create('clients', function (Blueprint $table) {
    $table->increments('id');
    $table->text('title');
    $table->longText('description');
    $table->integer('fax');
    $table->text('adrress1');
    $table->integer('telephone1');
    $table->timestamps();
});

and the view that i want to show in it

@foreach($phonebooks as $phonebook)
<tr>
    <th scope="row">{{$phonebook->id}}</th>
    <th scope="row">{{$phonebook->title}}</th>
    <td><a href="/admin/phonebooks/{{$phonebook->id}}">{{$phonebook->description}}</a></td>
    <td>{{$phonebook->calldate}}</td>
    <td>{{$phonebook->created_at->toFormattedDateString()}}</td>

    <td>{{$client->title}}</td>
    <td>
        <div class="btn-group" role="group" aria-label="Basic example">
            <a href="{{ URL::to('admin/phonebooks/' . $phonebook->id . '/edit') }}">
                <button type="button" class="btn btn-warning">edit</button>
            </a>&nbsp;
            <form action="{{url('admin/phonebooks', [$phonebook->id])}}" method="POST">
                <input type="hidden" name="_method" value="DELETE">
                <input type="hidden" name="_token" value="{{ csrf_token() }}">
                <input type="submit" class="btn btn-danger" value="delete"/>
            </form>
        </div>
    </td>
</tr>@endforeach

Answer 1

您在电话簿中具有客户端属性，请使用它

<td>{{$phonebook->client->title}}</td>

Answer 2

I would suggest loading all the clients with eager loading so it will be more efficient, you can read why on the docs

You could do this on your controller:

public function index()
{
    $phonebooks = Phonebook::with('client')->get();
    return view('admin.phonebooks.index',compact('phonebooks',$phonebooks);
}

Then in your view you can access the phonebook client thanks to the relationship you have defined doing this:

@foreach ($phonebooks as $phonebook) 
    {{ $phonebook->client->title }}
@endforeach