fixes on invoices relations and revisions

app/Models/Shop/Invoice.php

@@ -3,19 +3,32 @@
 namespace App\Models\Shop;
 
 use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\SoftDeletes;
+
+use Venturecraft\Revisionable\RevisionableTrait;
+use Znck\Eloquent\Traits\BelongsToThrough;
 
 class Invoice extends Model
 {
+    use BelongsToThrough, RevisionableTrait, SoftDeletes;
+
     protected $guarded = ['id'];
     protected $table = 'shop_invoices';
+    protected $revisionCreationsEnabled = false;
+    protected $keepRevisionOf = ['status', 'total_taxed', 'shipping', 'total_shipped'];
 
-    public function InvoiceItems()
+    public function payments()
     {
-        return $this->hasMany(InvoiceItem::class);
+        return $this->hasMany(InvoicePayment::class);
     }
 
-    public function Customer()
+    public function order()
     {
-        return $this->belongsTo(Customer::class);
+        return $this->belongsTo(Order::class);
+    }
+
+    public function customer()
+    {
+        return $this->belongsToThrough(Customer::class, Order::class, null, '', [Customer::class => 'customer_id', Order::class => 'order_id']);
     }
 }