Invoice Widgets completed

app/Models/Invoice.php

@@ -2,7 +2,9 @@
 
 namespace App\Models;
 
+use App\Enumerations\InvoiceStatus;
 use App\Scopes\InstancedModel;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
 
 /**
  * @property string $tenant
@@ -65,4 +67,12 @@ class Invoice extends InstancedModel
         'denied_at',
         'denied_reason',
     ];
+
+    public function costUnit() : BelongsTo{
+        return $this->belongsTo(CostUnit::class);
+    }
+
+    public function status() : BelongsTo {
+        return $this->belongsTo(InvoiceStatus::class, 'status')->first();
+    }
 }