Typecho文章置顶的实现方法

在index.php中插入以下代码

<?php  
$sticky = $this->options->sticky;
$db = Typecho_Db::get();
$pageSize = $this->options->pageSize;
if ($sticky && !empty(trim($sticky))) {
    $sticky_cids = array_filter(explode('|', $sticky));
    if (!empty($sticky_cids)) {
        $sticky_html = " <span class='sticky--post'><svg xmlns='http://www.w3.org/2000/svg' width='16px' height='16px' fill='none' viewBox='0 0 24 24' class='bk'>
<path fill='#242424' fill-rule='evenodd' d='M12.333 16.993a7.4 7.4 0 0 1-1.686-.12 7.25 7.25 0 1 1 8.047-4.334v.001a7.2 7.2 0 0 1-.632 1.188 7.26 7.26 0 0 1-4.708 3.146l-.07.013q-.466.083-.951.105m.356.979a8.4 8.4 0 0 1-1.377 0l-2.075 5.7a.375.375 0 0 1-.625.13l-2.465-2.604-3.563.41a.375.375 0 0 1-.395-.501l2.645-7.267a8.25 8.25 0 1 1 14.333 0l2.645 7.267a.375.375 0 0 1-.396.5l-3.562-.41-2.465 2.604a.375.375 0 0 1-.625-.13zm5.786-3.109a8.25 8.25 0 0 1-4.775 2.962l1.658 4.554 1.77-1.87.344-.362.496.057 2.558.294zm-12.95 0L3.476 20.5l2.557-.295.497-.057.344.363 1.77 1.87 1.658-4.555a8.25 8.25 0 0 1-4.775-2.961' clip-rule='evenodd'></path>
</svg>
置顶 </span> ";
        
        // 保存原始对象状态
        $originalRows = $this->row;
        $originalStack = $this->stack;
        $originalLength = $this->length;
        $totalOriginal = $this->getTotal();
        
        // 重置当前对象状态
        $this->row = [];
        $this->stack = [];
        $this->length = 0;
        
        // 关键修改:不再减少总文章数
        // 保持原始总数,这样分页逻辑不会受影响
        // $this->setTotal(max($totalOriginal - $stickyCount, 0));
        
        if (isset($this->currentPage) && $this->currentPage == 1) {
            // 查询置顶文章
            $selectSticky = $this->select()->where('type = ?', 'post');
            foreach ($sticky_cids as $i => $cid) {
                if ($i == 0) 
                    $selectSticky->where('cid = ?', $cid);
                else 
                    $selectSticky->orWhere('cid = ?', $cid);
            }
            $stickyPosts = $db->fetchAll($selectSticky);
            
            // 添加置顶文章到结果集
            foreach ($stickyPosts as &$stickyPost) {
                $stickyPost['isSticky'] = true;
                $stickyPost['stickyHtml'] = $sticky_html;
                $this->push($stickyPost);
            }
            
            // 计算当前页应显示的普通文章数量
            $standardPageSize = $pageSize - count($stickyPosts);
            
            // 确保第一页不会显示太多文章
            if ($standardPageSize <= 0) {
                $standardPageSize = 0; // 如果置顶文章已经填满或超过一页,则不显示普通文章
            }
        } else {
            // 非第一页显示正常数量的文章
            $standardPageSize = $pageSize;
        }
        
        // 查询普通文章
        if ($this->currentPage == 1) {
            // 第一页需要排除置顶文章并限制数量
            $selectNormal = $this->select()
                ->where('type = ?', 'post')
                ->where('status = ?', 'publish')
                ->where('created < ?', time());
                
            // 排除所有置顶文章
            foreach ($sticky_cids as $cid) {
                $selectNormal->where('table.contents.cid != ?', $cid);
            }
            
            $selectNormal->order('created', Typecho_Db::SORT_DESC)
                ->limit($standardPageSize)
                ->offset(0);
        } else {
            // 非第一页的查询
            // 计算正确的偏移量:(当前页码-1) * 每页数量 - 置顶文章数
            // 这样可以确保不会漏掉文章
            $offset = ($this->currentPage - 1) * $pageSize - count($sticky_cids);
            $offset = max($offset, 0); // 确保偏移量不为负
            
            $selectNormal = $this->select()
                ->where('type = ?', 'post')
                ->where('status = ?', 'publish')
                ->where('created < ?', time());
                
            // 排除所有置顶文章
            foreach ($sticky_cids as $cid) {
                $selectNormal->where('table.contents.cid != ?', $cid);
            }
            
            $selectNormal->order('created', Typecho_Db::SORT_DESC)
                ->limit($pageSize)
                ->offset($offset);
        }
    } else {
        // 没有有效的置顶文章ID,正常查询
        $selectNormal = $this->select()
            ->where('type = ?', 'post')
            ->where('status = ?', 'publish')
            ->where('created < ?', time())
            ->order('created', Typecho_Db::SORT_DESC)
            ->page(isset($this->currentPage) ? $this->currentPage : 1, $pageSize);
    }
} else {
    // 没有设置置顶文章,正常查询
    $selectNormal = $this->select()
        ->where('type = ?', 'post')
        ->where('status = ?', 'publish')
        ->where('created < ?', time())
        ->order('created', Typecho_Db::SORT_DESC)
        ->page(isset($this->currentPage) ? $this->currentPage : 1, $pageSize);
}

// 添加私有文章查询条件
if ($this->user->hasLogin()) {
    $uid = $this->user->uid;
    if ($uid) {
        $selectNormal->orWhere('authorId = ? AND status = ?', $uid, 'private');
    }
}

// 获取普通文章
$normalPosts = $db->fetchAll($selectNormal);

// 如果没有置顶文章或在前面的代码中没有重置对象状态,则在这里重置
if (empty($sticky) || empty(trim($sticky)) || empty($sticky_cids)) {
    $this->row = [];
    $this->stack = [];
    $this->length = 0;
}

// 将普通文章添加到结果集
foreach ($normalPosts as $normalPost) {
    $this->push($normalPost);
}
?>

在主题的functions.php文件中查找

function themeConfig($form) {

在下面插入

    $sticky = new Typecho_Widget_Helper_Form_Element_Text('sticky', NULL, NULL, _t('置顶文章cid'), _t('多篇文章以`|`符号隔开'), _t('会在首页展示置顶文章。'));
    $form->addInput($sticky);

在文章列表中合适的地方插入,一般是<?php $this->title() ?>的前后位置

<?php if (isset($this->isSticky) && $this->isSticky): ?>
<?php echo $this->stickyHtml; ?>
<?php endif; ?>

浪子

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