Initial commit

app/Models/Invoice.php

@@ -0,0 +1,35 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+use Illuminate\Database\Eloquent\Relations\HasMany;
+
+class Invoice extends Model
+{
+    protected $fillable = [
+        'student_id',
+        'period_start',
+        'period_end',
+        'total',
+        'status',
+        'pdf_path',
+    ];
+
+    /**
+     * The student this invoice is for.
+     */
+    public function student(): BelongsTo
+    {
+        return $this->belongsTo(StudentProfile::class, 'student_id');
+    }
+
+    /**
+     * All invoice line items associated with this invoice.
+     */
+    public function items(): HasMany
+    {
+        return $this->hasMany(InvoiceItem::class);
+    }
+}