fix registration issue and split parent controller into services

app/Services/Parents/ParentAttendanceService.php

@@ -0,0 +1,27 @@
+<?php
+
+namespace App\Services\Parents;
+
+use CodeIgniter\Database\BaseConnection;
+
+class ParentAttendanceService
+{
+    public function __construct(private readonly BaseConnection $db)
+    {
+    }
+
+    public function attendanceForParent(int $parentId, string $schoolYear): array
+    {
+        if ($parentId <= 0 || $schoolYear === '') {
+            return [];
+        }
+
+        return $this->db->table('attendance_data')
+            ->select('students.firstname, students.lastname, attendance_data.date, attendance_data.status, attendance_data.reason')
+            ->join('students', 'students.id = attendance_data.student_id')
+            ->where('attendance_data.school_year', $schoolYear)
+            ->where('students.parent_id', $parentId)
+            ->get()
+            ->getResultArray();
+    }
+}