boursecu_server/app/Models/Price.php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;

class Price extends Model
{
    use HasFactory;
    protected $fillable = [
        "price",
        "date_at",
        "time_at",
        "user_id",
    ];
    public function user()
    {
        return $this->belongsTo(User::class)->select(['id','name']);
    }
    public function order(){
        return $this->hasMany(Order::class, 'price_id');
    }
}