各个div的jquery函数

Question

我认为这可以通过该.prev()功能实现,但由于某种原因它无法正常工作.

我正在为博客上的帖子创建拇指向上/向下按钮.我正在尝试根据用户投票显示消息.无论是向上还是向下,但只要我投票1个特定帖子,就会显示所有帖子的消息.

这是我的代码.我删除了prev()尝试以使其更具可读性.该脚本工作正常ajax明智.

$(document).ready(function() {
    $(".vote_button").click(function(e) { //the UP or DOWN vote button
    var vote_status = $(this).attr('class').split(' ')[1]; //gets second class name following vote_button
    var vote_post_id = $(this).attr("id"); //the post ID
    var dataString = 'post_id=' + vote_post_id + '&vote_status=' + vote_status;

    $.ajax({
        type: "POST",
        url: "url/add_vote.php",
        data: dataString,
        cache: false,
        success: function(html) {
            if (vote_status == 1) 
         {
                $('.msg_box').fadeIn(200);
                $('.msg_box').text('You voted UP!');
            }
            if (vote_status == 2) 
         {
                $('.msg_box').fadeIn(200);
                $('.msg_box').text('You voted DOWN!');
            }
        }
    });
    return false;
});
});

示例HTML

<div class="vote_button 1" id="18">UP</div>
<div class="vote_button 2" id="77">DOWN</div>
<div class="msg_box"></div>

<div class="vote_button 1" id="43">UP</div>
<div class="vote_button 2" id="15">DOWN</div>
<div class="msg_box"></div>


<div class="vote_button 1" id="11">UP</div>
<div class="vote_button 2" id="78">DOWN</div>
<div class="msg_box"></div>

编辑:提供没有Ajax的jsfiddle部分 http://jsfiddle.net/XJeXw/

Answer 1

您需要保存对click处理程序内部按钮的引用(例如,var me = $(this);),然后me.nextAll('.msg_box:first')在AJAX处理程序内部使用.

编辑:示例:

var me = $(this);   //The this will be different inside the AJAX callback

$.ajax({
    type: "POST",
    url: "url/add_vote.php",
    data: dataString,
    cache: false,
    success: function(html) {
        me.nextAll('.msg_box:first')
            .text(vote_status == 1 ? 'You voted UP!' : 'You voted DOWN!')
            .fadeIn(200);
    }
});