英文:
Implement Star Rating for every element inside a html table, which is generated by User Inputs
问题
我正在尝试构建一个网站，该网站能够动态存储用户在网站上输入的任意事件，并在HTML表格中进行显示。每个存储的事件都可以通过一个星级评分系统进行评分，我已经使用HTML、JavaScript和CSS实现了这个系统。
问题是，我的当前系统只允许对其中一个元素进行评分。如果我的列表中有两个元素，并且我尝试对第二个元素进行评分，它会更改第一个元素的值，不允许我更改第二个元素的值。
我该如何解决这个问题？
以下是我的代码（其中一些警报/注释是德语的，但请不要在意这些）。
请注意，我不想使用数据库或类似的东西。我只是在这种情况下进行试验！
<!-- begin snippet: js hide: false console: true babel: false -->
<!-- language: lang-js -->
$(document).ready(function () {
function addData() {
var eventname = $("#eventname").val();
var eventdate = $("#eventdate").val();
var eventloc = $("#eventloc").val();
var eventauthor = $("#eventauthor").val();
var eventdesc = $("#eventdesc").val();
if (eventname.trim() === '' || eventdate.trim() === '' || eventloc.trim() === '' || eventauthor.trim() === '' || eventdesc.trim() === '') {
alert("请填写所有字段");
return;
}
if (!isValidDate(eventdate)) {
alert("日期必须符合以下格式：dd.mm.yyyy");
return;
}
// 验证并添加到表格
$(".table tbody tr").last().after(
'<tr>' +
'<td><input type="checkbox" id="select-row"></td>' +
'<td>' + eventname + '</td>' +
'<td>' + eventdate + '</td>' +
'<td>' + eventloc + '</td>' +
'<td>' + eventdesc + '</td>' +
'<td>' + eventauthor + '</td>' +
'<td><button class="btn btn-link like-button">Gefällt mir</button></td>' +
'<td><div class="rate"><input type="radio" id="star5" name="rate" value="5" /><label for="star5" title="text">5 stars</label><input type="radio" id="star4" name="rate" value="4" /><label for="star4" title="text">4 stars</label><input type="radio" id="star3" name="rate" value="3" /><label for="star3" title="text">3 stars</label><input type="radio" id="star2" name="rate" value="2" /><label for="star2" title="text">2 stars</label><input type="radio" id="star1" name="rate" value="1" /><label for="star1" title="text">1 star</label></div></td>' +
'</tr>'
);
function isValidDate(dateString) {
var regex = /^\d{2}\.\d{2}\.\d{4}$/;
return regex.test(dateString);
}
}
// 按钮的事件监听器
$('#addData').click(addData);
$('.table').on('click', '.like-button', function () {
$(this).toggleClass('liked');
if ($(this).hasClass('liked')) {
$(this).text('Gefällt mir nicht mehr');
$(this).closest('tr').addClass('liked-event');
} else {
$(this).text('Gefällt mir');
$(this).closest('tr').removeClass('liked-event');
}
});
});
<!-- language: lang-css -->
* {
margin: 0;
padding: 0;
}
.rate {
float: left;
height: 46px;
padding: 0 10px;
}
.rate:not(:checked) > input {
position:absolute;
top:-9999px;
}
.rate:not(:checked) > label {
float:right;
width:1em;
overflow:hidden;
white-space:nowrap;
cursor:pointer;
font-size:30px;
color:#ccc;
}
.rate:not(:checked) > label:before {
content: '★ ';
}
.rate > input:checked ~ label {
color: #ffc700;
}
.rate:not(:checked) > label:hover,
.rate:not(:checked) > label:hover ~ label {
color: #deb217;
}
.rate > input:checked + label:hover,
.rate > input:checked + label:hover ~ label,
.rate > input:checked ~ label:hover,
.rate > input:checked ~ label:hover ~ label,
.rate > label:hover ~ input:checked ~ label {
color: #c59b08;
}
<!-- language: lang-html -->
<!DOCTYPE html>
<head>
<meta charset="utf-8" />
<title>Eventübersicht</title>
<link href="style.css" rel="stylesheet" type="text/css">
<!-- Bootstrap 4 CDN -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.5.2/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.16.0/umd/popper.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.5.2/js/bootstrap.min.js"></script>
<script src="Script1.js"></script>
<!-- Fontawesome CDN Link -->
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.2.1/css/all.min.css" />
</head>
<header>
<a href="index.html">Überblick</a>
<a href="CreateEvent.html">Event erstellen</a>
</header>
<body>
<h1 class="headline" style="text-align: center;">Neues Event</h1>
<div class="container">
<div class="form-div">
<div class="row">
<div class="col-md-3">
<input type="text" class="form-control" id="eventname" placeholder="Eventname">
</div>
<div class="col-md-3">
<input type="datetime" class="form-control" id="eventdate" placeholder="Eventdatum">
</div>
<div class="col-md-3">
<input type="text" class="form-control" id="eventloc" placeholder="Eventort">
</div>
<div class="col-md-3">
<input type="text" class="form-control" id="eventauthor" placeholder="Eventautor">
</div>
<details>
<summary>英文:</summary>
I am trying to build a Website, which is able to dynamically store arbitrary events from user inputs on the website in a html table. Every event stored can be rated by a star rating system which i already implemented with html, js & css.
The problem is, my current system only allows to rate one of the elements. If I have two elements in my list and I try to rate the second one, it changes the value of the first element and doesn't allow me to change the value of the second one.
How can i fix this?
Here is my Code (Some Alerts/Comments are in German but just dont mind these really)
And please not i don't want to use a database or anything like this yet. I am just playing around in this case!
<!-- begin snippet: js hide: false console: true babel: false -->
<!-- language: lang-js -->
$(document).ready(function () {
function addData() {
var eventname = $("#eventname").val();
var eventdate = $("#eventdate").val();
var eventloc = $("#eventloc").val();
var eventauthor = $("#eventauthor").val();
var eventdesc = $("#eventdesc").val();
if (eventname.trim() === '' || eventdate.trim() === '' || eventloc.trim() === '' || eventauthor.trim() === '' || eventdesc.trim() === '') {
alert("Bitte f�llen Sie alle Felder aus");
return;
}
if (!isValidDate(eventdate)) {
alert("Datum muss folgendem Format entsprechen: dd.mm.yyyy ein");
return;
}
// Validierung und Hinzuf�gen zur Tabelle
$(".table tbody tr").last().after(
'<tr>' +
'<td><input type="checkbox" id="select-row"></td>' +
'<td>' + eventname + '</td>' +
'<td>' + eventdate + '</td>' +
'<td>' + eventloc + '</td>' +
'<td>' + eventdesc + '</td>' +
'<td>' + eventauthor + '</td>' +
'<td><button class="btn btn-link like-button">Gefällt mir</button></td>' +
'<td><div class="rate"><input type="radio" id="star5" name="rate" value="5" /><label for="star5" title="text">5 stars</label><input type="radio" id="star4" name="rate" value="4" /><label for="star4" title="text">4 stars</label><input type="radio" id="star3" name="rate" value="3" /><label for="star3" title="text">3 stars</label><input type="radio" id="star2" name="rate" value="2" /><label for="star2" title="text">2 stars</label><input type="radio" id="star1" name="rate" value="1" /><label for="star1" title="text">1 star</label></div></td>'
+ '</tr>'
);
function isValidDate(dateString) {
var regex = /^\d{2}\.\d{2}\.\d{4}$/;
return regex.test(dateString);
}
}
// Eventlistener f�r den Button
$('#addData').click(addData);
$('.table').on('click', '.like-button', function () {
$(this).toggleClass('liked');
if ($(this).hasClass('liked')) {
$(this).text('Gefällt mir nichtmehr');
$(this).closest('tr').addClass('liked-event');
} else {
$(this).text('Gefällt mir');
$(this).closest('tr').removeClass('liked-event');
}
});
});
<!-- language: lang-css -->
*{
margin: 0;
padding: 0;
}
.rate {
float: left;
height: 46px;
padding: 0 10px;
}
.rate:not(:checked) > input {
position:absolute;
top:-9999px;
}
.rate:not(:checked) > label {
float:right;
width:1em;
overflow:hidden;
white-space:nowrap;
cursor:pointer;
font-size:30px;
color:#ccc;
}
.rate:not(:checked) > label:before {
content: '★ ';
}
.rate > input:checked ~ label {
color: #ffc700;
}
.rate:not(:checked) > label:hover,
.rate:not(:checked) > label:hover ~ label {
color: #deb217;
}
.rate > input:checked + label:hover,
.rate > input:checked + label:hover ~ label,
.rate > input:checked ~ label:hover,
.rate > input:checked ~ label:hover ~ label,
.rate > label:hover ~ input:checked ~ label {
color: #c59b08;
}
<!-- language: lang-html -->
<!DOCTYPE html>
<head>
<meta charset="utf-8" />
<title>Eventüberblick</title>
<link href="style.css" rel="stylesheet" type="text/css">
<!-- Bootstrap 4 CDN -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.5.2/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.16.0/umd/popper.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.5.2/js/bootstrap.min.js"></script>
<script src="Script1.js"></script>
<!-- Fontawesome CDN Link -->
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.2.1/css/all.min.css" />
</head>
<header>
<a href="index.html">Überblick</a>
<a href="CreateEvent.html">Event erstellen</a>
</header>
<body>
<h1 class="headline" style="text-align: center;">Neues Event</h1>
<div class="container">
<div class="form-div">
<div class="row">
<div class="col-md-3">
<input type = "text" class="form-control" id="eventname" placeholder="Eventname">
</div>
<div class="col-md-3">
<input type = "datetime" class="form-control" id="eventdate" placeholder="Eventdatum">
</div>
<div class="col-md-3">
<input type = "text" class="form-control" id="eventloc" placeholder="Eventort">
</div>
<div class="col-md-3">
<input type = "text" class="form-control" id="eventauthor" placeholder="Eventautor">
</div>
<div class="col-md-3">
<input type = "text" class="form-control" id="eventdesc" placeholder="Eventbeschreibung">
</div>
<div class="col-md-3" style="text-align: right;">
<button class="btn btn-primary" id="addData">Hinzufügen</button>
</div>
</div>
</div>
<h2 class="headline" style="text-align: center;">Eventliste</h2>
<div class="container">
<table class="table">
<thead>
<tr>
<th>All<input type="checkbox" id="select-all"></th>
<th>Eventname</th>
<th>Eventdatum</th>
<th>Eventort</th>
<th>Eventbeschreibung</th>
<th>Eventautor</th>
</tr>
</thead>
<tbody>
<tr>
</tr>
</tbody>
</table>
</div>
</div>
<script></script>
</body>
<!-- end snippet -->
</details>
# 答案1
**得分**: 0
以下是您 JavaScript 代码中的问题：
1. 每个事件都有一系列具有相同 `id` 属性的复选框，跨多个事件具有相同的 `name` 属性。
2. 每个事件都有一系列具有相同 `name` 属性的复选框，跨多个事件具有相同的 `id` 属性。
这意味着每一行都有一个名为 "star1"、"star2" 等的 `name` 属性的复选框。浏览器无法知道您点击了哪个事件（一组复选框）。
我已经将事件名称添加到每一行的 ID 和 `name` 属性中，现在它可以正常工作，因为浏览器现在可以区分每个事件的复选框组。
在您的字符串中，一个输入更改为：
```html
<input type="radio" id="'+eventname+'5" name="'+eventname+'rate" value="5" />
现在看起来是这样的：
$(".table tbody tr").last().after(
'<tr>' +
'<td><input type="checkbox" id="select-row"></td>' +
'<td>' + eventname + '</td>' +
'<td>' + eventdate + '</td>' +
'<td>' + eventloc + '</td>' +
'<td>' + eventdesc + '</td>' +
'<td>' + eventauthor + '</td>' +
'<td><button class="btn btn-link like-button">Gefällt mir</button></td>' +
'<td><div class="rate"><input type="radio" id="'+eventname+'5" name="'+eventname+'rate" value="5" /><label for="'+eventname+'5" title="text">5 stars</label><input type="radio" id="'+eventname+'4" name="'+eventname+'rate" value="4" /><label for="'+eventname+'4" title="text">4 stars</label><input type="radio" id="'+eventname+'3" name="'+eventname+'rate" value="3" /><label for="'+eventname+'3" title="text">3 stars</label><input type="radio" id="'+eventname+'2" name="'+eventname+'rate" value="2" /><label for="'+eventname+'2" title="text">2 stars</label><input type="radio" id="'+eventname+'1" name="'+eventname+'rate" value="1" /><label for="'+eventname+'1" title="text">1 star</label></div></td>' +
'</tr>'
);
您的其余代码（CSS、HTML）都没有问题。这是整个可工作的代码：
<!-- begin snippet: js hide: false console: true babel: null -->
<!-- language: lang-js -->
$(document).ready(function () {
function addData() {
var eventname = $("#eventname").val();
var eventdate = $("#eventdate").val();
var eventloc = $("#eventloc").val();
var eventauthor = $("#eventauthor").val();
var eventdesc = $("#eventdesc").val();
if (eventname.trim() === '' || eventdate.trim() === '' || eventloc.trim() === '' || eventauthor.trim() === '' || eventdesc.trim() === '') {
alert("Bitte füllen Sie alle Felder aus");
return;
}
if (!isValidDate(eventdate)) {
alert("Datum muss folgendem Format entsprechen: dd.mm.yyyy ein");
return;
}
// Validierung und Hinzufügen zur Tabelle
$(".table tbody tr").last().after(
'<tr>' +
'<td><input type="checkbox" id="select-row"></td>' +
'<td>' + eventname + '</td>' +
'<td>' + eventdate + '</td>' +
'<td>' + eventloc + '</td>' +
'<td>' + eventdesc + '</td>' +
'<td>' + eventauthor + '</td>' +
'<td><button class="btn btn-link like-button">Gefällt mir</button></td>' +
'<td><div class="rate"><input type="radio" id="'+eventname+'5" name="'+eventname+'rate" value="5" /><label for="'+eventname+'5" title="text">5 stars</label><input type="radio" id="'+eventname+'4" name="'+eventname+'rate" value="4" /><label for="'+eventname+'4" title="text">4 stars</label><input type="radio" id="'+eventname+'3" name="'+eventname+'rate" value="3" /><label for="'+eventname+'3" title="text">3 stars</label><input type="radio" id="'+eventname+'2" name="'+eventname+'rate" value="2" /><label for="'+eventname+'2" title="text">2 stars</label><input type="radio" id="'+eventname+'1" name="'+eventname+'rate" value="1" /><label for="'+eventname+'1" title="text">1 star</label></div></td>' +
'</tr>'
);
function isValidDate(dateString) {
var regex = /^\d{2}\.\d{2}\.\d{4}$/;
return regex.test(dateString);
}
}
// Eventlistener für den Button
$('#addData').click(addData);
$('.table').on('click', '.like-button', function () {
$(this).toggleClass('liked');
if ($(this).hasClass('liked')) {
$(this).text('Gefällt mir nicht mehr');
$(this).closest('tr').addClass('liked-event');
} else {
$(this).text('Gefällt mir');
$(this).closest('tr').removeClass('liked-event');
}
});
});
<!-- language: lang-css -->
*{
margin: 0;
padding: 0;
}
.rate {
float: left;
height: 46px;
padding: 0 10px;
}
.rate:not(:checked) > input {
position:absolute;
top:-9999px;
}
.rate:not(:checked) > label {
float:right;
width:1em;
overflow:hidden;
white-space:nowrap;
cursor:pointer;
font-size:30px;
color:#ccc;
}
.rate:not(:checked) > label:before {
content: '★ ';
}
.rate > input:checked ~ label {
color: #ffc700;
}
.rate:not(:checked) > label:hover,
.rate:not(:checked) > label:hover ~ label {
color: #deb217;
}
.rate > input:checked + label:hover,
.rate > input:checked + label:hover ~ label,
.rate > input:checked ~ label:hover,
.rate > input:checked ~ label:hover ~ label,
.rate > label:hover ~ input:checked ~ label {
color: #c59b
<details>
<summary>英文:</summary>
You have two issues in your javascript code.
1. Each event had a series of checkboxes with the same `id` attribute across multiple events.
2. Each event had a series of checkboxes with the same `name` attribute across multiple events.
This means that each row had a checkbox with a `name` attribute called "star1", "star2", ...
The browser doesn't know in which event (group of checkboxes) you clicked.
I added the event name to the ID and the `name` attribute of each row and it works, because now the browser can make a distinction between each group of checkboxes per event.
In your string, an input is changed to:
<input type="radio" id="'+eventname+'5" name="'+eventname+'rate" value="5" />
And now looks like this:
$(".table tbody tr").last().after(
'<tr>' +
'<td><input type="checkbox" id="select-row"></td>' +
'<td>' + eventname + '</td>' +
'<td>' + eventdate + '</td>' +
'<td>' + eventloc + '</td>' +
'<td>' + eventdesc + '</td>' +
'<td>' + eventauthor + '</td>' +
'<td><button class="btn btn-link like-button">Gefällt mir</button></td>' +
'<td><div class="rate"><input type="radio" id="'+eventname+'5" name="'+eventname+'rate" value="5" /><label for="'+eventname+'5" title="text">5 stars</label><input type="radio" id="'+eventname+'4" name="'+eventname+'rate" value="4" /><label for="'+eventname+'4" title="text">4 stars</label><input type="radio" id="'+eventname+'3" name="'+eventname+'rate" value="3" /><label for="'+eventname+'3" title="text">3 stars</label><input type="radio" id="'+eventname+'2" name="'+eventname+'rate" value="2" /><label for="'+eventname+'2" title="text">2 stars</label><input type="radio" id="'+eventname+'1" name="'+eventname+'rate" value="1" /><label for="'+eventname+'1" title="text">1 star</label></div></td>'
+ '</tr>'
);
The rest of your code (CSS, HTML) is fine. Here's the entire working code:
<!-- begin snippet: js hide: false console: true babel: null -->
<!-- language: lang-js -->
$(document).ready(function () {
function addData() {
var eventname = $("#eventname").val();
var eventdate = $("#eventdate").val();
var eventloc = $("#eventloc").val();
var eventauthor = $("#eventauthor").val();
var eventdesc = $("#eventdesc").val();
if (eventname.trim() === '' || eventdate.trim() === '' || eventloc.trim() === '' || eventauthor.trim() === '' || eventdesc.trim() === '') {
alert("Bitte f�llen Sie alle Felder aus");
return;
}
if (!isValidDate(eventdate)) {
alert("Datum muss folgendem Format entsprechen: dd.mm.yyyy ein");
return;
}
// Validierung und Hinzuf�gen zur Tabelle
$(".table tbody tr").last().after(
'<tr>' +
'<td><input type="checkbox" id="select-row"></td>' +
'<td>' + eventname + '</td>' +
'<td>' + eventdate + '</td>' +
'<td>' + eventloc + '</td>' +
'<td>' + eventdesc + '</td>' +
'<td>' + eventauthor + '</td>' +
'<td><button class="btn btn-link like-button">Gefällt mir</button></td>' +
'<td><div class="rate"><input type="radio" id="'+eventname+'5" name="'+eventname+'rate" value="5" /><label for="'+eventname+'5" title="text">5 stars</label><input type="radio" id="'+eventname+'4" name="'+eventname+'rate" value="4" /><label for="'+eventname+'4" title="text">4 stars</label><input type="radio" id="'+eventname+'3" name="'+eventname+'rate" value="3" /><label for="'+eventname+'3" title="text">3 stars</label><input type="radio" id="'+eventname+'2" name="'+eventname+'rate" value="2" /><label for="'+eventname+'2" title="text">2 stars</label><input type="radio" id="'+eventname+'1" name="'+eventname+'rate" value="1" /><label for="'+eventname+'1" title="text">1 star</label></div></td>'
+ '</tr>'
);
function isValidDate(dateString) {
var regex = /^\d{2}\.\d{2}\.\d{4}$/;
return regex.test(dateString);
}
}
// Eventlistener f�r den Button
$('#addData').click(addData);
$('.table').on('click', '.like-button', function () {
$(this).toggleClass('liked');
if ($(this).hasClass('liked')) {
$(this).text('Gefällt mir nichtmehr');
$(this).closest('tr').addClass('liked-event');
} else {
$(this).text('Gefällt mir');
$(this).closest('tr').removeClass('liked-event');
}
});
});
<!-- language: lang-css -->
*{
margin: 0;
padding: 0;
}
.rate {
float: left;
height: 46px;
padding: 0 10px;
}
.rate:not(:checked) > input {
position:absolute;
top:-9999px;
}
.rate:not(:checked) > label {
float:right;
width:1em;
overflow:hidden;
white-space:nowrap;
cursor:pointer;
font-size:30px;
color:#ccc;
}
.rate:not(:checked) > label:before {
content: '★ ';
}
.rate > input:checked ~ label {
color: #ffc700;
}
.rate:not(:checked) > label:hover,
.rate:not(:checked) > label:hover ~ label {
color: #deb217;
}
.rate > input:checked + label:hover,
.rate > input:checked + label:hover ~ label,
.rate > input:checked ~ label:hover,
.rate > input:checked ~ label:hover ~ label,
.rate > label:hover ~ input:checked ~ label {
color: #c59b08;
}
<!-- language: lang-html -->
<!DOCTYPE html>
<head>
<meta charset="utf-8" />
<title>Eventüberblick</title>
<link href="style.css" rel="stylesheet" type="text/css">
<!-- Bootstrap 4 CDN -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.5.2/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.16.0/umd/popper.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.5.2/js/bootstrap.min.js"></script>
<script src="Script1.js"></script>
<!-- Fontawesome CDN Link -->
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.2.1/css/all.min.css" />
</head>
<header>
<a href="index.html">Überblick</a>
<a href="CreateEvent.html">Event erstellen</a>
</header>
<body>
<h1 class="headline" style="text-align: center;">Neues Event</h1>
<div class="container">
<div class="form-div">
<div class="row">
<div class="col-md-3">
<input type = "text" class="form-control" id="eventname" placeholder="Eventname">
</div>
<div class="col-md-3">
<input type = "datetime" class="form-control" id="eventdate" placeholder="Eventdatum">
</div>
<div class="col-md-3">
<input type = "text" class="form-control" id="eventloc" placeholder="Eventort">
</div>
<div class="col-md-3">
<input type = "text" class="form-control" id="eventauthor" placeholder="Eventautor">
</div>
<div class="col-md-3">
<input type = "text" class="form-control" id="eventdesc" placeholder="Eventbeschreibung">
</div>
<div class="col-md-3" style="text-align: right;">
<button class="btn btn-primary" id="addData">Hinzufügen</button>
</div>
</div>
</div>
<h2 class="headline" style="text-align: center;">Eventliste</h2>
<div class="container">
<table class="table">
<thead>
<tr>
<th>All<input type="checkbox" id="select-all"></th>
<th>Eventname</th>
<th>Eventdatum</th>
<th>Eventort</th>
<th>Eventbeschreibung</th>
<th>Eventautor</th>
</tr>
</thead>
<tbody>
<tr>
</tr>
</tbody>
</table>
</div>
</div>
<script></script>
</body>
<!-- end snippet -->
</details>
通过集体智慧和协作来改善编程学习和解决问题的方式。致力于成为全球开发者共同参与的知识库，让每个人都能够通过互相帮助和分享经验来进步。
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