35171-vm/products.php

<?php
require_once 'db/config.php';

// Form gönderildi mi kontrolü
if ($_SERVER['REQUEST_METHOD'] === 'POST') {
    $pdo = db();

    // Yeni ürün ekleme işlemi
    if (isset($_POST['name'])) {
        $name = $_POST['name'] ?? '';
        $type = $_POST['type'] ?? '';
        $stock_quantity = $_POST['stock_quantity'] ?? 0;
        $purchase_price = $_POST['purchase_price'] ?? 0.0;
        $sale_price = $_POST['sale_price'] ?? 0.0;
        $low_stock_threshold = $_POST['low_stock_threshold'] ?? 5;

        if (!empty($name) && !empty($type) && is_numeric($stock_quantity) && is_numeric($purchase_price) && is_numeric($sale_price)) {
            try {
                $stmt = $pdo->prepare("INSERT INTO products (name, type, stock_quantity, purchase_price, sale_price, low_stock_threshold) VALUES (?, ?, ?, ?, ?, ?)");
                $stmt->execute([$name, $type, $stock_quantity, $purchase_price, $sale_price, $low_stock_threshold]);
                $_SESSION['notification'] = "Ürün başarıyla eklendi!";
            } catch (PDOException $e) {
                $_SESSION['error'] = "Veritabanı hatası: " . $e->getMessage();
            }
        } else {
            $_SESSION['error'] = "Lütfen tüm alanları doğru bir şekilde doldurun.";
        }
    }

    // Ürün silme işlemi
    if (isset($_POST['action']) && $_POST['action'] === 'delete') {
        $product_id = $_POST['product_id'] ?? null;
        if ($product_id) {
            try {
                $stmt = $pdo->prepare("DELETE FROM products WHERE id = ?");
                $stmt->execute([$product_id]);
                $_SESSION['notification'] = "Ürün başarıyla silindi.";
            } catch (PDOException $e) {
                $_SESSION['error'] = "Hata: Ürün silinemedi. İlişkili satış kayıtları olabilir.";
            }
        }
    }

    // PRG Pattern: Sayfayı yeniden yönlendirerek formun tekrar gönderilmesini engelle
    header("Location: products.php");
    exit();
}

// Ürünleri veritabanından çek
$products = [];
try {
    $pdo = db();
    $stmt = $pdo->query("SELECT * FROM products ORDER BY created_at DESC");
    $products = $stmt->fetchAll(PDO::FETCH_ASSOC);
} catch (PDOException $e) {
    // Hata mesajını oturuma kaydet ve sayfayı yenilemekten kaçın
    $_SESSION['error'] = "Ürünler çekilirken hata oluştu: " . $e->getMessage();
}

require_once 'partials/header.php';
?>

<h1 class="mb-4">Ürün Yönetimi</h1>

<!-- Yeni Ürün Ekleme Formu -->
<div class="card mb-4">
    <div class="card-header">
        Yeni Ürün Ekle
    </div>
    <div class="card-body">
        <form action="products.php" method="POST">
            <div class="row">
                <div class="col-md-6 mb-3">
                    <label for="name" class="form-label">Ürün Adı</label>
                    <input type="text" class="form-control" id="name" name="name" required>
                </div>
                <div class="col-md-6 mb-3">
                    <label for="type" class="form-label">Ürün Tipi</label>
                    <select class="form-select" id="type" name="type" required>
                        <option value="jant">Jant</option>
                        <option value="lastik">Lastik</option>
                        <option value="akü">Akü</option>
                    </select>
                </div>
            </div>
            <div class="row">
                <div class="col-md-3 mb-3">
                    <label for="stock_quantity" class="form-label">Stok Miktarı</label>
                    <input type="number" class="form-control" id="stock_quantity" name="stock_quantity" required>
                </div>
                <div class="col-md-3 mb-3">
                    <label for="purchase_price" class="form-label">Alış Fiyatı</label>
                    <input type="number" step="0.01" class="form-control" id="purchase_price" name="purchase_price" required>
                </div>
                <div class="col-md-3 mb-3">
                    <label for="sale_price" class="form-label">Satış Fiyatı</label>
                    <input type="number" step="0.01" class="form-control" id="sale_price" name="sale_price" required>
                </div>
                 <div class="col-md-3 mb-3">
                    <label for="low_stock_threshold" class="form-label">Düşük Stok Uyarısı</label>
                    <input type="number" class="form-control" id="low_stock_threshold" name="low_stock_threshold" value="5" required>
                </div>
            </div>
            <button type="submit" class="btn btn-primary">Ürünü Ekle</button>
        </form>
    </div>
</div>

<!-- Ürün Listesi -->
<div class="card">
    <div class="card-header">
        Mevcut Ürünler
    </div>
    <div class="card-body">
        <div class="table-responsive">
            <table class="table table-striped">
                <thead>
                    <tr>
                        <th>ID</th>
                        <th>Ad</th>
                        <th>Tip</th>
                        <th>Stok</th>
                        <th>Alış Fiyatı</th>
                        <th>Satış Fiyatı</th>
                        <th>Eklendiği Tarih</th>
                        <th>İşlemler</th>
                    </tr>
                </thead>
                <tbody>
                    <?php if (empty($products)):
                        <tr>
                            <td colspan="8" class="text-center">Henüz hiç ürün eklenmemiş.</td>
                        </tr>
                    <?php else: ?>
                        <?php foreach ($products as $product): ?>
                            <tr>
                                <td><?php echo htmlspecialchars($product['id']); ?></td>
                                <td><?php echo htmlspecialchars($product['name']); ?></td>
                                <td><?php echo htmlspecialchars($product['type']); ?></td>
                                <td><?php echo htmlspecialchars($product['stock_quantity']); ?></td>
                                <td><?php echo htmlspecialchars($product['purchase_price']); ?></td>
                                <td><?php echo htmlspecialchars($product['sale_price']); ?></td>
                                <td><?php echo htmlspecialchars($product['created_at']); ?></td>
                                <td>
                                    <a href="edit-product.php?id=<?php echo $product['id']; ?>" class="btn btn-sm btn-warning">Düzenle</a>
                                    <form action="products.php" method="POST" class="d-inline" onsubmit="return confirm('Bu ürünü silmek istediğinizden emin misiniz?');">
                                        <input type="hidden" name="action" value="delete">
                                        <input type="hidden" name="product_id" value="<?php echo $product['id']; ?>">
                                        <button type="submit" class="btn btn-sm btn-danger">Sil</button>
                                    </form>
                                </td>
                            </tr>
                        <?php endforeach; ?>
                    <?php endif; ?>
                </tbody>
            </table>
        </div>
    </div>
</div>

<?php require_once 'partials/footer.php'; ?>