Руслан Абсалямов

<form id="form-create_shedule" action="{{ route('shedule.update') }}" method="post">

public function directions()
    {
        return $this->belongsTo('Growth\Direction', 'direction_id', 'id');
    }

class Direction extends Model
{
    protected $table = 'direction';
    protected $fillable = ['id_user', 'name'];

    public function executes()
    {
        return $this->belongsToMany('Growth\Execute', 'execute_direction');
    }
}

$arr = [];
        $directions = Direction::where('id_user', Auth::user()->id)->get();
        foreach ($directions as $value){
            $execute = Direction::find($value->id)->executes()->get();
            foreach ($execute as $key => $item){
                $arr[$value->id]['name'] = $value->name;
                $arr[$value->id]['execute'][$item->id]['name'] = $item->name;
                $arr[$value->id]['execute'][$item->id]['last_name'] = $item->name;

            }
        }