摘要:纯代码为wordpress添加点赞功能;大挖亲测可用,并且已经应用到wp主题开发中;
纯代码为wordpress添加点赞功能;大挖亲测可用,并且已经应用到wp主题开发中;
wordpress的文章点赞方法很多,而且大多数都是依赖插件和第三方的附属功能。说起来也是挺麻烦的,原本只是想添加一个点赞最后还附带过来无用的第三方广告功能;所以挖主题分享出来一款非常简洁的纯代码实现wp主题点赞的功能。而且操作起来非常简单,有点基本的小伙伴都可以直接上手。而且运用cookies有效的解决了重复点赞bug;下面就是方法喽。
添加函数前注意要引用版本为1.10版以上的jQuery哦
首先需要在Functions.php文件中添加一个注册函:
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add_action(‘wp_ajax_nopriv_bigfa_like’, ‘bigfa_like’);
add_action(‘wp_ajax_bigfa_like’, ‘bigfa_like’);
function bigfa_like(){
global $wpdb,$post;
$id = $_POST[“um_id”];
$action = $_POST[“um_action”];
if ( $action == ‘ding’){
$bigfa_raters = get_post_meta($id,‘bigfa_ding’,true);
$expire = time() + 99999999;
$domain = ($_SERVER[‘HTTP_HOST’] != ‘localhost’) ? $_SERVER[‘HTTP_HOST’] : false; // make cookies work with localhost
setcookie(‘bigfa_ding_’.$id,$id,$expire,‘/’,$domain,false);
if (!$bigfa_raters || !is_numeric($bigfa_raters)) {
update_post_meta($id, ‘bigfa_ding’, 1);
}
else {
update_post_meta($id, ‘bigfa_ding’, ($bigfa_raters + 1));
}
echo get_post_meta($id,‘bigfa_ding’,true);
}
die;
}
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然后在页头或是页角位置添加一段JS代码:
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$(document).ready(function() {
$.fn.postLike = function() {
if ($(this).hasClass(‘done’)) {
return false;
} else {
$(this).addClass(‘done’);
var id = $(this).data(“id”),
action = $(this).data(‘action’),
rateHolder = $(this).children(‘.count’);
var ajax_data = {
action: “bigfa_like”,
um_id: id,
um_action: action
};
$.post(“./wp-admin/admin-ajax.php”, ajax_data,
function(data) {
$(rateHolder).html(data);
});
return false;
}
};
$(document).on(“click”, “.favorite”,
function() {
$(this).postLike();
});
});
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最后在文章页面添加下前台点赞的调用代码:
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<div class=“post-like”>
<a href=“javascript:;” data–action=“ding” data–id=“<?php the_ID(); ?>“ class=“favorite<?php if(isset($_COOKIE[‘bigfa_ding_’.$post->ID])) echo ‘ done’;?>“>大挖好帅 <span class=“count”>
<?php if( get_post_meta($post->ID,‘bigfa_ding’,true) ){
echo get_post_meta($post->ID,‘bigfa_ding’,true);
} else {
echo ‘0’;
}?></span>
</a>
</div>
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提供一小段的参考CSS样式方便大家操作
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.post–like{text–align:center;padding:10px}
.post–like a{ background–color:#21759B;border-radius: 3px;color: #FFFFFF;font-size: 12px;padding: 5px 10px;text-decoration: none;outline:none}
.post–like a.done, .post–like a:hover{background–color:#eee;color:#21759B;}
.post–like a.done{cursor:not–allowed}
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来源:http://www.wazhuti.com/497.html