initial commit

app/Models/InvoiceItem.php

@@ -0,0 +1,23 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+
+class InvoiceItem extends Model
+{
+    protected $fillable = ['invoice_id', 'description', 'quantity', 'unit_price', 'total'];
+
+    protected $casts = [
+        'unit_price' => 'decimal:2',
+        'total'      => 'decimal:2',
+    ];
+
+    public function invoice(): BelongsTo
+    {
+        return $this->belongsTo(Invoice::class);
+    }
+}