[英]Star rating system save value on click only value save in database
我正在尝试制作星级评分系统,我有此代码,我想对其进行一些更改,在用户单击星星后,它会显示带有多少星星的警报并重置颜色,我想要的是用户点击后保留的颜色填充,并用星星下的 div 替换警报,这是我的代码:
JS:
$(function() {
$("div.star-rating > s, div.star-rating-rtl > s").on("click", function(e) {
// remove all active classes first, needed if user clicks multiple times
$(this).closest('div').find('.active').removeClass('active');
$(e.target).parentsUntil("div").addClass('active'); // all elements up from the clicked one excluding self
$(e.target).addClass('active'); // the element user has clicked on
var numStars = $(e.target).parentsUntil("div").length+1;
$('.show-result').text(numStars + (numStars == 1 ? " star" : " stars!"));
});
});
CSS:
.show-result {
margin: 10px;
padding: 10px;
color: green;
font-size: 20px;
}
.star-rating s:hover,
.star-rating s.active {
color: red;
}
.star-rating-rtl s:hover,
.star-rating-rtl s.active {
color: red;
}
.star-rating s,
.star-rating-rtl s {
color: black;
font-size: 50px;
cursor: default;
text-decoration: none;
line-height: 50px;
}
.star-rating {
padding: 2px;
}
.star-rating-rtl {
background: #555;
display: inline-block;
border: 2px solid #444;
}
.star-rating-rtl s {
color: yellow;
}
.star-rating s:hover:before,
.star-rating s.rated:before,
.star-rating s.active:before {
content: "\2605";
}
.star-rating s:before {
content: "\2606";
}
.star-rating-rtl s:hover:after,
.star-rating-rtl s.rated:after,
.star-rating-rtl s.active:after {
content: "\2605";
}
.star-rating-rtl s:after {
content: "\2606";
}
html
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="star-rating"><s><s><s><s><s></s></s></s></s></s></div>
<div class="show-result">No stars selected yet.</div>
这里的值可以显示但是如何在mysql中存储这个值。
要将星级评分存储在数据库中,您应该使用 Ajax。 下面的代码显示了使用 Jquery Ajax post 将值发布到服务器端脚本 (PHP)。
$(e.target).addClass('active'); // the element user has clicked on
var numStars = $(e.target).parentsUntil("div").length+1;
// modification starts here....
$.post( "saveRatings.php", { rating: numStars})// you may pass other necessary information
.done(function( data ) {
$('.show-result').text(numStars + (numStars == 1 ? " star" : " stars!"));
});
在您的saveRatings.php
文件中,
$ratings = $_POST['ratings'];
// You may need to pass more information to identify the user who gives the rating or the product that is being rated.
// Add your MySQL query to save the rating information to a database table
// return a success/failure response as needed.
您可能需要从数据库中获取评级并将其传递给 javascript 代码以在页面重新加载时保留评级。
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