为 html 表中的每个元素实现星级评定，该表由用户输入生成-解网

问：

我正在尝试构建一个网站，它能够将网站上用户输入的任意事件动态存储在 html 表中。存储的每个事件都可以由星级评定系统进行评级，我已经用html，js和css实现了该系统。

问题是，我目前的系统只允许对其中一个元素进行评级。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，并且不允许我更改第二个元素的值。

我该如何解决这个问题？

这是我的代码（一些警报/评论是德语的，但真的不介意这些）

请不要，我还不想使用数据库或类似的东西。在这种情况下，我只是在玩！

$(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');
        }
    });
});

*{
    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;
}

<!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>

JavaScript HTML CSS 评级

答：

0赞 DerpyNerd 6/5/2023 #1

您的 javascript 代码中有两个问题。

每个事件都有一系列复选框，这些复选框在多个事件中具有相同的属性。id
每个事件都有一系列复选框，这些复选框在多个事件中具有相同的属性。name

这意味着每一行都有一个复选框，其中包含一个名为“star1”、“star2”、... 浏览器不知道您在哪个事件（复选框组）中单击了该事件。name

我将事件名称添加到每行的 ID 和属性中，它起作用了，因为现在浏览器可以区分每个事件的每组复选框。name

在字符串中，输入更改为：

<input type="radio" id="'+eventname+'5" name="'+eventname+'rate" value="5" />

现在看起来像这样：

        $(".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>'
        );

其余代码（CSS、HTML）都很好。以下是完整的工作代码：

$(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');
        }
    });
});

*{
    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;
}

<!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>

0赞 DerpyNerd 6/5/2023

这仅在没有重复名称的事件时才有效，当然:)实现数据库后，您可能希望从数据库切换到事件 ID。

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