當方法返回null

Question

我有兩個模型，一個叫Customer第二個是Website

它們之間的關系是， Customer Website而Website屬於Customer

這就是我這樣做的方式

class Website extends \Eloquent {
    use SubscriptionBillableTrait;

    protected $fillable = [];

    protected $guarded = ['id'];

    public function customermodel()
    {
        // Return an Eloquent relationship.
        return $this->belongsTo('Customer')
    }

}

Customer模型

use Mmanos\Billing\CustomerBillableTrait;
class Customer extends \Eloquent {
    use CustomerBillableTrait;
    protected $fillable = [];

    protected $guarded = ['id'];

    public function websites() {
        return $this->hasMany('Website');
    }

}

當我嘗試通過這樣的關系訪問Customer

$website = Website::find(1);
return dd($website->customermodel);

返回null

注意：我正在使用Laravel 4

Answer 1

用這個

$website = Website::find(1)->with('customermodel');
return dd($website->customermodel);