Attachment system some file

app/Models/Income/Invoice.php

@@ -8,13 +8,21 @@ use App\Traits\DateTime;
 use App\Traits\Incomes;
 use Bkwld\Cloner\Cloneable;
 use Sofa\Eloquence\Eloquence;
+use Plank\Mediable\Mediable;
 
 class Invoice extends Model
 {
-    use Cloneable, Currencies, DateTime, Eloquence, Incomes;
+    use Cloneable, Currencies, DateTime, Eloquence, Incomes, Mediable;
 
     protected $table = 'invoices';
 
+    /**
+     * The accessors to append to the model's array form.
+     *
+     * @var array
+     */
+    protected $appends = ['attachment'];
+
     protected $dates = ['deleted_at', 'invoiced_at', 'due_at'];
 
     /**
@@ -130,4 +138,18 @@ class Invoice extends Model
     {
         $this->attributes['currency_rate'] = (double) $value;
     }
+
+    /**
+     * Get the current balance.
+     *
+     * @return string
+     */
+    public function getAttachmentAttribute()
+    {
+        if (!$this->hasMedia('attachment')) {
+            return false;
+        }
+
+        return $this->getMedia('attachment')->first();
+    }
 }