wordpress实现文章点赞功能
- 2019-01-19 19:58:48
- 8,442 次阅读
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最近,想在自己改版的网站上增加一个点赞功能,以此来丰富网站的内容。于是在网上查询该功能如何实现,一开始找了一个源码,在本地测试,不管怎么弄,点赞的按钮就是不起作用。我想程序哪里是不是出现了问题,查看了好多博客都是发表的相同的代码程序,既然人家用的好好的,为啥我的不起作用呢?经过一番折腾,弄了好久还是不行,我想第二天放到服务器空间里起作用吗,结果真的管用了。给大家分享一下代码,如下:
第一步:将下面的代码放到主题的functions里面
add_action('wp_ajax_nopriv_favorite_praise', 'favorite_praise'); add_action('wp_ajax_favorite_praise', 'favorite_praise'); function favorite_praise(){ global $wpdb,$post; $id = $_POST["um_id"]; $action = $_POST["um_action"]; if ( $action == 'ding'){ $specs_raters = get_post_meta($id,'favorite_praise',true); $expire = time() + 99999999; $domain = ($_SERVER['HTTP_HOST'] != 'localhost') ? $_SERVER['HTTP_HOST'] : false; // make cookies work with localhost setcookie('favorite_praise_'.$id,$id,$expire,'/',$domain,false); if (!$specs_raters || !is_numeric($specs_raters)) { update_post_meta($id, 'favorite_praise', 1); } else { update_post_meta($id, 'favorite_praise', ($specs_raters + 1)); } echo get_post_meta($id,'favorite_praise',true); } die; }
第二步:新建一个js文件,将代码放进去,在底部引用
$.fn.postLike = function() { if ($(this).hasClass('done')) { alert('您已赞过本博客'); return false; } else { $(this).addClass('done'); var id = $(this).data("id"), action = $(this).data('action'), rateHolder = $(this).children('.count'); var ajax_data = { action: "favorite_praise", um_id: id, um_action: action }; $.post("/wp-admin/admin-ajax.php", ajax_data, function(data) { $(rateHolder).html(data); }); return false; } }; $(document).on("click", ".favoritePraise", function() { $(this).postLike(); }); });
第三步:将按钮放到文章内容页合适的位置
<div class="post-like"> <a href="javascript:;" data-action="ding" data-id="<?php the_ID(); ?>" class="favoritePraise <?php if(isset($_COOKIE['favorite_praise_'.$post->ID])) echo 'done';?>">喜欢 <span class="count"> <?php if( get_post_meta($post->ID,'favorite_praise',true) ){ echo get_post_meta($post->ID,'favorite_praise',true); } else { echo '0'; }?></span> </a> </div>
第四步:将样式放到css样式表里面
.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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