Fixed order processing, broken after upgrade to Laravel 5.8

app/Models/Account.php

@@ -9,6 +9,9 @@ use App\Traits\NextKey;
 class Account extends Model
 {
 	use NextKey;
+
+	const RECORD_ID = 'account';
+
 	public $incrementing = FALSE;
 
 	protected $table = 'ab_account';

app/Models/AdslPlan.php

@@ -21,7 +21,7 @@ class AdslPlan extends Model
 		],
 	];
 
-	protected $order_model = ServiceAdsl::class;
+	protected $order_model = Service\Adsl::class;
 
 	public function product()
 	{

app/Models/Base/ServiceType.php

@@ -4,12 +4,8 @@ namespace App\Models\Base;
 
 use Illuminate\Database\Eloquent\Model;
 
-use App\Traits\NextKey;
-
 abstract class ServiceType extends Model
 {
-	use NextKey;
-
 	public $timestamps = FALSE;
 	public $dateFormat = 'U';
 

app/Models/PlanVoip.php

@@ -31,5 +31,5 @@ class PlanVoip extends Model
 		],
 	];
 
-	protected $order_model = ServiceVoip::class;
+	protected $order_model = Service\Voip::class;
 }

app/Models/Service.php

@@ -10,9 +10,11 @@ class Service extends Model
 {
 	use NextKey;
 
-	public $incrementing = FALSE;
+	const RECORD_ID = 'service';
+
 	const CREATED_AT = 'date_orig';
 	const UPDATED_AT = 'date_last';
+	public $incrementing = FALSE;
 
 	protected $table = 'ab_service';
 	protected $with = ['product.descriptions','account.language'];
@@ -86,7 +88,7 @@ class Service extends Model
 	 *
 	 * @return \Illuminate\Database\Eloquent\Relations\BelongsTo
 	 */
-	public function orderedby()
+	public function orderby()
 	{
 		return $this->belongsTo(Account::class);
 	}

app/Models/Service/Adsl.php

@@ -2,8 +2,14 @@
 
 namespace App\Models\Service;
 
+use App\Traits\NextKey;
+
 class Adsl extends \App\Models\Base\ServiceType
 {
+	use NextKey;
+
+	const RECORD_ID = 'service__adsl';
+
 	// @todo column service_id can be removed.
 	protected $table = 'ab_service__adsl';
 

app/Models/Service/Domain.php

@@ -2,8 +2,14 @@
 
 namespace App\Models\Service;
 
+use App\Traits\NextKey;
+
 class Domain extends \App\Models\Base\ServiceType
 {
+	use NextKey;
+
+	const RECORD_ID = 'service__domain';
+
 	protected $table = 'ab_service__domain';
 
 	public function tld()

app/Models/Service/Host.php

@@ -2,8 +2,14 @@
 
 namespace App\Models\Service;
 
+use App\Traits\NextKey;
+
 class Host extends \App\Models\Base\ServiceType
 {
+	use NextKey;
+
+	const RECORD_ID = 'service__hosting';
+
 	protected $table = 'ab_service__hosting';
 
 	public function getNameAttribute()

app/Models/Service/SSL.php

@@ -2,9 +2,16 @@
 
 namespace App\Models\Service;
 
+use App\Traits\NextKey;
+
 class SSL extends \App\Models\Base\ServiceType
 {
+	use NextKey;
+
+	const RECORD_ID = 'service__ssl';
+
 	protected $table = 'ab_service__ssl';
+
 	protected $_o = NULL;
 
 	public function tld()

app/Models/Service/Voip.php

@@ -2,8 +2,14 @@
 
 namespace App\Models\Service;
 
+use App\Traits\NextKey;
+
 class Voip extends \App\Models\Base\ServiceType
 {
+	use NextKey;
+
+	const RECORD_ID = 'service__adsl';
+
 	protected $table = 'ab_service__voip';
 
 	public function getFullNameAttribute()