Library-Management-System/borrow.php at main · zainnada/Library-Management-System · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
<?php
session_start();
if (isset($_COOKIE['admin'])) {
    $_SESSION['admin'] = $_COOKIE['admin'];
}
if (!isset($_SESSION['admin'])) {
    header("Location: login.php");
    exit();
}
?>


<?php
/*
$servername = "localhost";
$username = "root";
$password = "";
$dbname = "shehda_library_db";


$conn = new mysqli($servername, $username, $password, $dbname);

if ($conn->connect_error) {
    die("Connection failed: " . $conn->connect_error);
}
*/
// include "db_connect.php";
require_once "db_connect.php"; // require once is better than include, because the database connection is important.


// Get book ID from URL
$book_id = isset($_GET['book_id']) ? intval($_GET['book_id']) : 0;

// Fetch book details
$book_sql = "SELECT * FROM books WHERE id = ?";
$stmt = $conn->prepare($book_sql);
$stmt->bind_param("i", $book_id);
$stmt->execute();
$book_result = $stmt->get_result();
$book = $book_result->fetch_assoc();

// Fetch all friends
$friends_result = $conn->query("SELECT * FROM friends");

// Handle borrow request
if ($_SERVER["REQUEST_METHOD"] == "POST") {
    $friend_id = $_POST['friend_id'];
    $book_id = $_POST['book_id'];

    // Insert borrow record
    $borrow_sql = "INSERT INTO borrows (friend_id, book_id, borrow_date) VALUES (?, ?, NOW())";
    $stmt = $conn->prepare($borrow_sql);
    $stmt->bind_param("ii", $friend_id, $book_id);

    if ($stmt->execute()) {
        // Mark book as unavailable
        $update_book_sql = "UPDATE books SET available = 0 WHERE id = ?";
        $stmt = $conn->prepare($update_book_sql);
        $stmt->bind_param("i", $book_id);
        $stmt->execute();

        echo "<script>alert('Book borrowed successfully!'); window.location='index.php';</script>";
    } else {
        echo "Error borrowing book: " . $conn->error;
    }
}
?>

<!DOCTYPE html>
<link rel="stylesheet" href="style.css">
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Borrow a Book</title>
    <link rel="stylesheet" href="styles.css">
</head>
<body>

    <h2>Borrow a Book</h2>
    <form method="post">
        <label>Book:</label>
        <input type="text" value="<?php echo $book ? $book['title'] : ''; ?>" disabled>
        <input type="hidden" name="book_id" value="<?php echo $book_id; ?>">

        <label>Select Friend:</label>
        <select name="friend_id" required>
            <option value="">-- Choose a Friend --</option>
            <?php while ($friend = $friends_result->fetch_assoc()): ?>
                <option value="<?php echo $friend['id']; ?>"><?php echo $friend['name']; ?></option>
            <?php endwhile; ?>
        </select>

        <button type="submit">Confirm Borrow</button>
    </form>

    <a class="a1" href="index.php">Back to Library</a>

</body>
</html>


            <!-- this way make the user choose the book and the friend every time click borrow.. -->
<!--


$conn = new mysqli($servername, $username, $password, $dbname);
if ($conn->connect_error) {
    die("Connection failed: " . $conn->connect_error);
}

if ($_SERVER["REQUEST_METHOD"] == "POST") {
    $friend_id = $_POST['friend_id'];
    $book_id = $_POST['book_id'];

    $conn->query("INSERT INTO borrows (friend_id, book_id) VALUES ($friend_id, $book_id)");
    $conn->query("UPDATE books SET available = 0 WHERE id = $book_id");

    header("Location: index.php");
}

// Fetch friends
$friends = $conn->query("SELECT * FROM friends");

// Fetch available books
$books = $conn->query("SELECT * FROM books WHERE available = 1");
?>

<form method="POST">
    <link rel="stylesheet" href="style.css">

    <label>Select Friend:</label>
    <select name="friend_id">
        <?php while ($row = $friends->fetch_assoc()) : ?>
            <option value="<?= $row['id'] ?>"><?= $row['name'] ?></option>
        <?php endwhile; ?>
    </select>

    <label>Select Book:</label>
    <select name="book_id">
        <?php while ($row = $books->fetch_assoc()) : ?>
            <option value="<?= $row['id'] ?>"><?= $row['title'] ?></option>
        <?php endwhile; ?>
    </select>

    <button type="submit">Borrow</button>
</form>
        -->


<?php $conn->close(); ?>