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- <?php
- require_once __DIR__ . '/../config.php';
- require_once __DIR__ . '/../includes/functions.php';
- // Check admin login
- if (!isset($_SESSION['admin_logged_in']) || !$_SESSION['admin_logged_in']) {
- header('Location: login.php');
- exit;
- }
- $pageTitle = 'Kategorien verwalten';
- $message = '';
- $messageType = '';
- $categories = getCategories();
- $products = getProducts();
- if ($_SERVER['REQUEST_METHOD'] === 'POST') {
- if (isset($_POST['add_category'])) {
- $label = normalizeCategoryLabel($_POST['label'] ?? '');
- if (!isValidCategoryLabel($label)) {
- $message = 'Bitte geben Sie einen Kategorienamen mit maximal 80 Zeichen ein.';
- $messageType = 'error';
- } else {
- $categoryId = generateCategoryIdFromLabel($label, $categories);
- $categories[] = [
- 'id' => $categoryId,
- 'label' => $label
- ];
- saveCategories($categories);
- $message = 'Kategorie wurde erfolgreich angelegt.';
- $messageType = 'success';
- }
- }
- if (isset($_POST['update_category'])) {
- $categoryId = normalizeCategoryId($_POST['category_id'] ?? '');
- $label = normalizeCategoryLabel($_POST['label'] ?? '');
- $found = false;
- if (!isValidCategoryLabel($label)) {
- $message = 'Bitte geben Sie einen Kategorienamen mit maximal 80 Zeichen ein.';
- $messageType = 'error';
- } else {
- foreach ($categories as &$category) {
- if ($category['id'] === $categoryId) {
- $category['label'] = $label;
- $found = true;
- break;
- }
- }
- unset($category);
- if (!$found) {
- $message = 'Kategorie nicht gefunden.';
- $messageType = 'error';
- } else {
- saveCategories($categories);
- $message = 'Kategorie wurde erfolgreich aktualisiert.';
- $messageType = 'success';
- }
- }
- }
- if (isset($_POST['delete_category'])) {
- $categoryId = normalizeCategoryId($_POST['category_id'] ?? '');
- $found = false;
- if (isCategoryInUse($categoryId)) {
- $message = 'Diese Kategorie wird noch von Produkten verwendet und kann nicht gelöscht werden.';
- $messageType = 'error';
- } else {
- $categories = array_values(array_filter($categories, function ($category) use ($categoryId, &$found) {
- if ($category['id'] === $categoryId) {
- $found = true;
- return false;
- }
- return true;
- }));
- if (!$found) {
- $message = 'Kategorie nicht gefunden.';
- $messageType = 'error';
- } else {
- saveCategories($categories);
- $message = 'Kategorie wurde gelöscht.';
- $messageType = 'success';
- }
- }
- }
- $categories = getCategories();
- $products = getProducts();
- }
- $editCategoryId = normalizeCategoryId($_GET['edit'] ?? '');
- $editingCategory = null;
- if ($editCategoryId !== '') {
- $editingCategory = getCategoryById($editCategoryId);
- if ($editingCategory === null && $message === '') {
- $message = 'Ausgewählte Kategorie wurde nicht gefunden.';
- $messageType = 'error';
- }
- }
- $bodyClass = 'admin-page';
- include __DIR__ . '/../includes/header.php';
- ?>
- <div class="admin-header">
- <h2>Kategorien verwalten</h2>
- <div>
- <a href="index.php" class="btn btn-secondary">Zurück zum Dashboard</a>
- </div>
- </div>
- <?php if ($message !== ''): ?>
- <div class="alert alert-<?php echo $messageType; ?>">
- <?php echo htmlspecialchars($message); ?>
- </div>
- <?php endif; ?>
- <?php if ($editingCategory !== null): ?>
- <div class="panel" style="padding: 2rem;">
- <h3>Kategorie bearbeiten</h3>
- <form method="POST">
- <input type="hidden" name="category_id" value="<?php echo htmlspecialchars($editingCategory['id']); ?>">
- <div class="form-group">
- <label for="category_id_display">ID</label>
- <input type="text" id="category_id_display" value="<?php echo htmlspecialchars($editingCategory['id']); ?>" readonly>
- <small>Die ID sollte gleichbleiben, damit Produktzuordnungen und Filter-URLs gültig bleiben.</small>
- </div>
- <div class="form-group">
- <label for="label_edit">Name *</label>
- <input type="text" id="label_edit" name="label" maxlength="80" required value="<?php echo htmlspecialchars($editingCategory['label']); ?>">
- </div>
- <button type="submit" name="update_category" class="btn">Kategorie aktualisieren</button>
- <a href="categories.php" class="btn btn-secondary">Abbrechen</a>
- </form>
- </div>
- <?php else: ?>
- <div class="panel" style="padding: 2rem;">
- <h3>Neue Kategorie anlegen</h3>
- <form method="POST">
- <div class="form-group">
- <label for="label">Name *</label>
- <input type="text" id="label" name="label" maxlength="80" required placeholder="z.B. Accessoires">
- <small>Die technische ID wird einmalig automatisch aus dem Namen erzeugt.</small>
- </div>
- <button type="submit" name="add_category" class="btn">Kategorie anlegen</button>
- </form>
- </div>
- <?php endif; ?>
- <div class="panel">
- <h3>Kategorien</h3>
- <div class="table-responsive">
- <table class="responsive-table">
- <thead>
- <tr>
- <th>Name</th>
- <th>ID</th>
- <th>Produkte</th>
- <th>Aktionen</th>
- </tr>
- </thead>
- <tbody>
- <?php foreach ($categories as $category): ?>
- <?php
- $productCount = 0;
- foreach ($products as $product) {
- if (productHasCategory($product, $category['id'])) {
- $productCount++;
- }
- }
- ?>
- <tr>
- <td data-label="Name"><?php echo htmlspecialchars($category['label']); ?></td>
- <td data-label="ID"><code><?php echo htmlspecialchars($category['id']); ?></code></td>
- <td data-label="Produkte"><?php echo $productCount; ?></td>
- <td data-label="Aktionen">
- <a href="categories.php?edit=<?php echo urlencode($category['id']); ?>" class="btn btn-small btn-secondary">Bearbeiten</a>
- <form method="POST" style="display: inline;" onsubmit="return confirm('Kategorie wirklich löschen?');">
- <input type="hidden" name="category_id" value="<?php echo htmlspecialchars($category['id']); ?>">
- <button type="submit" name="delete_category" class="btn btn-small">Löschen</button>
- </form>
- </td>
- </tr>
- <?php endforeach; ?>
- </tbody>
- </table>
- </div>
- </div>
- <?php include __DIR__ . '/../includes/footer.php'; ?>
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