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; ?>
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