Initial import

api/update_grade.php

@@ -0,0 +1,22 @@
+<?php
+require_once __DIR__ . '/../includes/functions.php';
+requireLogin();
+
+if (isStudent()) {
+    header('Location: ' . BASE_URL . '/index.php');
+    exit;
+}
+
+$id = intval($_POST['id'] ?? 0);
+$student_id = intval($_POST['student_id'] ?? 0);
+$grade = trim($_POST['grade'] ?? '');
+
+requireStudentAccess($student_id);
+
+if ($id > 0) {
+    $stmt = getDB()->prepare("UPDATE student_courses SET grade = ? WHERE id = ?");
+    $stmt->execute([$grade, $id]);
+}
+
+header('Location: ' . BASE_URL . '/students/view.php?id=' . $student_id);
+exit;