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edit_book.php
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<?php
require('./include/config.php');
require('./include/init.php');
require('./include/public_fun.php');
/**
* 更新手册
*/
class Edit_book extends Public_fun
{
public function __construct()
{
$this->must_login();
$action = $_GET['action'] ?? '';
$submit = $_POST['submit'] ?? '';
if ($action == 'edit') {
$this->mode_add = false;
$this->mode_edit = true;
$this->status_text = '编辑';
$this->get_book_id();
$this->get_book_info();
if ($submit) {
$this->edit();
header('location:' . $this->get_book_url());
die();
}
} else {
$this->mode_add = true;
$this->mode_edit = false;
$this->status_text = '新增';
if ($submit) {
$this->get_title();
$this->get_intro();
$this->create_book();
$this->book_id = $this->get_new_book_id();
header('location:' . $this->get_book_url());
die();
}
}
}
public function edit()
{
$this->get_title();
$this->get_intro();
$this->update();
}
public function update()
{
$table = Config::$table['book'];
$sql = "UPDATE `$table` SET `title` = '{$this->title}', `intro` = '{$this->intro}', `update_time` = CURRENT_TIMESTAMP WHERE `id` = {$this->book_id};";
mysqli_query(Init::$conn, $sql);
}
}
$edit_book = new Edit_book();
?>
<!DOCTYPE html>
<html lang="zh-CN">
<head>
<?php require('./include/head.php') ?>
<title><?php echo $edit_book->status_text ?>手册信息 - <?php echo Config::$site_title ?></title>
<script>
const PAGE_NAME = 'edit_book' // 页面标识
</script>
</head>
<body>
<?php require('./include/nav.php') ?>
<div class="container">
<div class="row">
<div class="col-xxl-6 col-xl-7 col-lg-8 mx-auto">
<form method="POST">
<div class="h4 mb-3"><?php echo $edit_book->status_text ?>手册信息</div>
<div class="mb-3">
<label for="bookName" class="form-label">手册名称（250字以内）</label>
<input type="text" class="form-control" name="title" id="bookName" placeholder="请输入手册名称" value="<?php
echo $edit_book->mode_edit ?
htmlspecialchars($edit_book->book_title) :
'' ?>" required>
</div>
<div class="mb-3">
<label for="bookIntro" class="form-label">手册介绍（500 字以内）</label>
<textarea class="form-control" name="intro" rows="5" id="bookIntro" placeholder="这是一本神奇的手册..." required><?php
echo $edit_book->mode_edit ?
htmlspecialchars($edit_book->book_info['intro']) :
'' ?></textarea>
</div>
<input type="hidden" name="submit" value="1">
<button class="btn btn-success mb-3">提交修改</button>
</form>
</div>
</div>
</div>
<script>
function limitInputNum(element, num) {
element.addEventListener('keyup', function(event) {
if (element.value.length >= num) {
element.value = element.value.substr(0, num)
}
})
}
let introDom = document.getElementById('bookIntro')
let nameDom = document.getElementById('bookName')
limitInputNum(nameDom, 250)
limitInputNum(introDom, 500)
</script>
<?php require('./include/footer.php') ?>
</body>
</html>