typecho点赞实现代码分享

//请求接口
function themeInit($archive)
{
if($archive->request->isPost() && $archive->request->likeup && $archive->request->do_action){
likeup($archive->request->likeup,$archive->request->do_action);
exit;
}
}
//点赞函数
function likeup($ccid,$kg) {
 $cid = $ccid;
 $db = Typecho_Db::get();
    $prefix = $db->getPrefix();
    if (!array_key_exists('likes', $db->fetchRow($db->select()->from('table.contents')))) {
        $db->query('ALTER TABLE `' . $prefix . 'contents` ADD `likes` INT(10) DEFAULT 0;');
        return;
    }
 $row = $db->fetchRow($db->select('likes')->from('table.contents')->where('cid = ?', $cid));
$num=$row['likes'];

if($kg=="do"){
 $db->query($db->update('table.contents')->rows(array('likes' => (int)$row['likes']+1))->where('cid = ?', $cid));
$num=$num+1;
setcookie("like_".$cid, $cid, time()+31536000);
}
if($kg=="undo"){
 $db->query($db->update('table.contents')->rows(array('likes' => (int)$row['likes']-1))->where('cid = ?', $cid));
$num=$num-1;
setcookie("like_".$cid, "");
}
echo $num;
}

likeup：文章id
do_action：do或者undo