PHP中模板分页的处理

dn001 2009-05-12 01:03:34

);
} else {
$page = 1;
}
if ($page==1) {
$startNum = 0;
} else {
$startNum = ($page-1) * PAGE_SIZE;
}
//生成分页链接字符串
if ($page==1 && $pageCount>1) {
$pageStr = "上一页 | <a href=/Type.php?tid=".$TypeID."&page=".($page+1).">下一页</a>";
} elseif ($page==$pageCount && $pageCount>1) {
$pageStr = "<a href=/Type.php?tid=".$TypeID."&page=".($page-1).">上一页</a> | 下一页";
} elseif ($page>1 && $page<=$pageCount) {
$pageStr = "<a href=/Type.php?tid=".$TypeID."&page=".($page-1).">上一页</a> |
<a href=/Type.php?tid=".$TypeID."&page=".($page+1).">下一页</a>";
} else {
$pageStr = "上一页 | 下一页";
}

//按照页数获取当前记录
$allBook = $Type->getBookFromType($TypeID, $start=$startNum, $offset=PAGE_SIZE);

//Smarty变量赋值
$tpl->assign('BookTotal', $BookTotal);
$tpl->assign('allBook', $allBook);
$tpl->assign('pageStr', $pageStr);

$tpl->display('Type.html');

unset($Type);

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为了更清晰的认识，下面简单的描述一下类库中的基本内容：（代码不完整）

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<?php
/**
* 文件：Type.class.php
* 功能：Type处理类
* www.mypchelp.cn
* 作者：heiyeluren
**/

class Type
{
var $mDsn;
var $mTableName;
var $hPearDB;

//构造函数
function Type()
{
//...
}

//获得pear DB类的句柄方法
function _getDBClass($fetchMode = DB_FETCHMODE_ASSOC)
{
if(!is_object($this->hPearDB)){
$this->hPearDB = DB::connect($this->mDsn);
$this->hPearDB->query("set names 'utf8'");
$this->hPearDB->setFetchMode($fetchMode);
if(DB::IsError($this->hPearDB)){
return false;
}
}
return $this->hPearDB;
}

//获取书籍总数
function getBookTotal($TypeId)
{
$db = $this->_getDBClass();
$sql = "SELECT COUNT(*) AS total FROM ...";
$rs = $db->getOne($sql);
if (DB::isError($rs))
return $rs->getMessage();
else
return $rs;
}

//获取所有书籍
function getBookFromType($TypeId, $start, $offset)
{
$db = $this->_getDBClass();
$sql = "SELECT * FROM ... LIMIT $start,$offset";
$rs = $db->getAll($sql);
if (DB::isError($rs))
return $rs->getMessage();
else
return $rs;
}

}
?>

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最后再让我们看一下这个Type.html模板是如何处理的：

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{* 插入头部文件 *}
{include file="Cendar/head.html"}
<div id="side">
<ul>
<li>书籍总数：{$BookTotal}</li>
</ul>
</div>
<div id="Book">
<h2 class="cata">书籍具体内容</h2>
<ul>
{section name=Book loop=$allBook}
<li><a href="show_Book.php?tid={$allBook[Book].id}">{$allBook[Book].title}</a></li>
{sectionelse}
<li class="warning">目前没有书籍</li>
{/section}
</ul>
</div>
{* 分页字符串显示 *}
<div align="right">
{"GBK"|iconv:"utf-8":$pageStr}
</div>
{* 插入底部文件 *}
{include file="Cendar/foot.html"}
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