resource setup

app/Models/Checkout.php

@@ -7,6 +7,9 @@ use Illuminate\Database\Eloquent\Model;
 class Checkout extends Model
 {
     protected $table = 'checkout';
+
+    protected $primaryKey = 'checkout_id';
+
     protected $fillable = [
     'bidder_num',
     'winnertotal',
@@ -25,11 +28,11 @@ class Checkout extends Model
 
     public function bidders()
     {
-        return $this->belongsTo(Bidders::class, 'idbidders');
+        return $this->belongsTo(Bidders::class, 'bidder_num');
     }
 
     public function paymentMethod()
     {
-        return $this->hasMany(PaymentMethods::class, 'payment_method', 'pm_id');
+        return $this->hasMany(PaymentMethods::class, 'pm_id', 'payment_method');
     }
 }