User Management + Didaktisches Handbuch + Stadt-Editor + Emoji-Kacheln

User Management (Backend): - schema-v2.sql: students, licenses, student_results, activity_log Tabellen - auth.php: Lehrer-Registrierung/Login, Schueler-Login, Status-Check - classes.php: CRUD fuer Klassenverwaltung (mit Join-Code-Generator) - students.php: Schueler erstellen (einzeln + Batch), bearbeiten, loeschen - modules.php: Modulfreigabe pro Klasse (locked/free/teacher_started) Didaktisches Handbuch: - handbuch.html: Vollstaendiger Lehrpersonen-Guide - 6 Module detailliert beschrieben (Lernziele, Kompetenzen) - Vor/Nach-Fragen fuer jede Simulation - Empfohlener Unterrichtsablauf (45-min-Einheit) - Differenzierungshinweise, Bewertungsempfehlungen Stadt-Editor: - stadt-editor.html: Funktionierendes 8x8 Raster mit Kachel-Platzierung - 15 Emoji-Gebaude-Kacheln (Kirche, Moschee, Wohngebiet, Fabrik, etc.) - Spielplatz: Rutsche+Karussell statt schwebende Koepfe - Hochhaeuser: 6 Gebaeude in 2 Reihen Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-14 01:52:55 +02:00
parent 32ed869f23
commit 33fae37838
8 changed files with 1582 additions and 43 deletions
@@ -0,0 +1,80 @@
+<?php
+/**
+ * API: Klassenverwaltung (nur fuer Lehrer)
+ * GET    /api/classes              → Alle Klassen des Lehrers
+ * POST   /api/classes {action}     → Klasse erstellen/bearbeiten/loeschen
+ */
+
+$method = $_SERVER['REQUEST_METHOD'];
+$db = Database::get();
+
+if ($method === 'GET') {
+    $teacherId = Session::requireTeacher();
+    $classes = $db->fetchAll(
+        'SELECT id, name, school_year, join_code, created_at FROM classes WHERE teacher_id = ? ORDER BY created_at DESC',
+        [$teacherId]
+    );
+    // Schueleranzahl pro Klasse
+    foreach ($classes as &$c) {
+        $c['student_count'] = (int)$db->fetchOne(
+            'SELECT COUNT(*) as cnt FROM students WHERE class_id = ?', [$c['id']]
+        )['cnt'];
+    }
+    Response::ok($classes);
+}
+
+if ($method === 'POST') {
+    $teacherId = Session::requireTeacher();
+    $body = json_decode(file_get_contents('php://input'), true);
+    $action = $body['action'] ?? '';
+
+    // === KLASSE ERSTELLEN ===
+    if ($action === 'create') {
+        $name = mb_substr(trim($body['name'] ?? ''), 0, 64);
+        $schoolYear = mb_substr(trim($body['schoolYear'] ?? ''), 0, 10);
+        if (!$name) Response::error('Klassenname erforderlich');
+
+        // Join-Code generieren (6 Zeichen, eindeutig)
+        $chars = 'ABCDEFGHJKLMNPQRSTUVWXYZ23456789'; // ohne I,O,0,1 (Verwechslungsgefahr)
+        do {
+            $code = '';
+            for ($i = 0; $i < 6; $i++) $code .= $chars[random_int(0, strlen($chars) - 1)];
+            $exists = $db->fetchOne('SELECT id FROM classes WHERE join_code = ?', [$code]);
+        } while ($exists);
+
+        $db->execute(
+            'INSERT INTO classes (teacher_id, name, school_year, join_code) VALUES (?, ?, ?, ?)',
+            [$teacherId, $name, $schoolYear, $code]
+        );
+        Response::ok(['id' => (int)$db->lastInsertId(), 'joinCode' => $code]);
+    }
+
+    // === KLASSE BEARBEITEN ===
+    if ($action === 'update') {
+        $classId = (int)($body['classId'] ?? 0);
+        $name = mb_substr(trim($body['name'] ?? ''), 0, 64);
+        $schoolYear = mb_substr(trim($body['schoolYear'] ?? ''), 0, 10);
+        if (!$classId || !$name) Response::error('classId und name erforderlich');
+
+        // Sicherstellen dass Klasse dem Lehrer gehoert
+        $class = $db->fetchOne('SELECT id FROM classes WHERE id = ? AND teacher_id = ?', [$classId, $teacherId]);
+        if (!$class) Response::error('Klasse nicht gefunden', 404);
+
+        $db->execute('UPDATE classes SET name = ?, school_year = ? WHERE id = ?', [$name, $schoolYear, $classId]);
+        Response::ok();
+    }
+
+    // === KLASSE LOESCHEN ===
+    if ($action === 'delete') {
+        $classId = (int)($body['classId'] ?? 0);
+        $class = $db->fetchOne('SELECT id FROM classes WHERE id = ? AND teacher_id = ?', [$classId, $teacherId]);
+        if (!$class) Response::error('Klasse nicht gefunden', 404);
+
+        $db->execute('DELETE FROM classes WHERE id = ?', [$classId]);
+        Response::ok();
+    }
+
+    Response::error('Unbekannte Aktion');
+}
+
+Response::error('Methode nicht erlaubt', 405);