Remove Interface ID and implement the lid/sid methods in __get()

app/Models/Invoice.php

@@ -36,7 +36,7 @@ use App\Traits\{PushNew,SiteID};
  *
  * @package App\Models
  */
-class Invoice extends Model implements IDs
+class Invoice extends Model
 {
 	use PushNew,ScopeActive,SiteID;
 
@@ -109,6 +109,16 @@ class Invoice extends Model implements IDs
 		'payment_items_active.payment:id,paid_at',
 	];
 
+	public function __get($key): mixed
+	{
+		return match ($key) {
+			'lid' => sprintf('%06s',$this->id),
+			'sid' => sprintf('%02s-%04s-%s',$this->site_id,$this->account_id,$this->lid),
+
+			default => parent::__get($key),
+		};
+	}
+
 	/* STATIC METHODS */
 
 	public static function boot()
@@ -317,28 +327,6 @@ class Invoice extends Model implements IDs
 		return round(($d-Arr::get($period,'start')->diffInDays($start)-$end->diffInDays(Arr::get($period,'end')))/$d,2);
 	}
 
-	/* INTERFACES */
-
-	/**
-	 * Invoice Local ID
-	 *
-	 * @return string
-	 */
-	public function getLIDAttribute(): string
-	{
-		return sprintf('%06s',$this->id);
-	}
-
-	/**
-	 * Invoice System ID
-	 *
-	 * @return string
-	 */
-	public function getSIDAttribute(): string
-	{
-		return sprintf('%02s-%04s-%s',$this->site_id,$this->account_id,$this->getLIDAttribute());
-	}
-
 	/* RELATIONS */
 
 	/**