石头的日志

zf的分页类感觉还不是很好，于是找了个，记录一下。

将下面的代码存成PageClass.php，存放在zend目录下。

<?php
class PageClass
{
private $_navigationItemCount = 10;                //导航栏显示导航总页数
private $_pageSize = null;                        //每页项目数
private $_align = “right”;                        //导航栏显示位置
private $_itemCount = null;                        //总项目数
private $_pageCount = null;                        //总页数
private $_currentPage = null;                    //当前页
private $_front = null;                            //前端控制器
private $_PageParaName = “page”;                //页面参数名称

private $_firstPageString = “|<<”;                //导航栏中第一页显示的字符
private $_nextPageString = “>>”;                //导航栏中前一页显示的字符
private $_previousPageString = “<<”;            //导航栏中后一页显示的字符
private $_lastPageString = “>>|”;                //导航栏中最后一页显示的字符
private $_splitString = ” | “;
//页数字间的间隔符 /

public function __construct($itemCount, $pageSize)
{
if(!is_numeric($itemCount) || (!is_numeric($pageSize)))
throw new Exception(“Pagination Error:not Number”);
$this->_itemCount = $itemCount;
$this->_pageSize = $pageSize;
$this->_front = Zend_Controller_Front::getInstance();

$this->_pageCount = ceil($itemCount/$pageSize);            //总页数
$page = $this->_front->getRequest()->getParam($this->_PageParaName);
if(empty($page) || (!is_numeric($page)))    //为空或不是数字，设置当前页为1
{
$this->_currentPage = 1;
}
else
{
if($page < 1)
$page = 1;
if($page > $this->_pageCount)
$page = $this->_pageCount;
$this->_currentPage = $page;
}
}

/**
* 返回当前页
* @param int 当前页
*/
public function getCurrentPage()
{
return $this->_currentPage;
}

/**
* 返回导航栏目
* @return string 导航html
*/
public function getNavigation()
{
$navigation = ‘<div style=”text-align:’.$this->_align.’”>’;

$pageCote = ceil($this->_currentPage / ($this->_navigationItemCount – 1)) – 1;    //当前页处于第几栏分页
$pageCoteCount = ceil($this->_pageCount / ($this->_navigationItemCount – 1));    //总分页栏
$pageStart = $pageCote * ($this->_navigationItemCount -1) + 1;                    //分页栏中起始页
$pageEnd = $pageStart + $this->_navigationItemCount – 1;                        //分页栏中终止页
if($this->_pageCount < $pageEnd)
{
$pageEnd = $this->_pageCount;
}
$navigation .= “Total:{$this->_itemCount} records　{$this->_pageCount} pages\n”;
if($pageCote > 0)                                //首页导航
{
$navigation .= ‘<a href=”‘.$this->createHref(1).”\”>$this->_firstPageString</a> “;
}
if($this->_currentPage != 1)                    //上一页导航
{
$navigation .= ‘<a href=”‘.$this->createHref($this->_currentPage-1);
$navigation .= “\”>$this->_previousPageString</a> “;
}
while ($pageStart <= $pageEnd)                    //构造数字导航区
{
if($pageStart == $this->_currentPage)
{
$navigation .= “<strong>$pageStart</strong>”.$this->_splitString;
}
else
{
$navigation .= ‘<a href=”‘.$this->createHref($pageStart).”\”>$pageStart</a>”.$this->_splitString;
}
$pageStart++;
}
if($this->_currentPage != $this->_pageCount)    //下一页导航
{
$navigation .= ‘ <a href=”‘.$this->createHref($this->_currentPage+1).”\”>$this->_nextPageString</a> “;
}
if($pageCote < $pageCoteCount-1)                //未页导航
{
$navigation .= ‘<a href=”‘.$this->createHref($this->_pageCount).”\”>$this->_lastPageString</a> “;
}
//添加直接导航框
//$navigation .= ‘<input type=”text” size=”3″ onkeydown=”if(event.keyCode==13){window.location=\’ ‘;
//$navigation .= $this->createHref().’\'+this.value;return false;}” />’;
$navigation .= ‘  <select onchange=”window.location=\’ ‘.$this->createHref().’\'+this.options[this.selectedIndex].value;”>’;
for ($i=1;$i<=$this->_pageCount;$i++){
if ($this->getCurrentPage()==$i){
$selected = “selected”;
}
else {
$selected = “”;
}
$navigation .= ‘<option value=’.$i.’ ‘.$selected.’>’.$i.’</option>’;
}
$navigation .= ‘</select>’;
//2008年8月27号补充输入非正确页码后出现的错误——end
$navigation .= “</div>”;
return $navigation;
}

/**
* 取得导航栏显示导航总页数
*
* @return int 导航栏显示导航总页数
*/
public function getNavigationItemCount()
{
return $this->_navigationItemCount;
}

/**
* 设置导航栏显示导航总页数
*
* @param int $navigationCount:导航栏显示导航总页数
*/
public function setNavigationItemCoun($navigationCount)
{
if(is_numeric($navigationCount))
{
$this->_navigationItemCount = $navigationCount;
}
}

/**
* 设置首页显示字符
* @param string $firstPageString 首页显示字符
*/
public function setFirstPageString($firstPageString)
{
$this->_firstPageString = $firstPageString;
}

/**
* 设置上一页导航显示字符
* @param string $previousPageString:上一页显示字符
*/
public function setPreviousPageString($previousPageString)
{
$this->_previousPageString = $previousPageString;
}

/**
* 设置下一页导航显示字符
* @param string $nextPageString:下一页显示字符
*/
public function setNextPageString($nextPageString)
{
$this->_nextPageString = $nextPageString;
}

/**
* 设置未页导航显示字符
* @param string $nextPageString:未页显示字符
*/
public function setLastPageString($lastPageString)
{
$this->_lastPageString = $lastPageString;
}

/**
* 设置导航字符显示位置
* @param string $align:导航位置
*/
public function setAlign($align)
{
$align = strtolower($align);
if($align == “center”)
{
$this->_align = “center”;
}elseif($align == “right”)
{
$this->_align = “right”;
}else
{
$this->_align = “left”;
}
}
/**
* 设置页面参数名称
* @param string $pageParamName:页面参数名称
*/
public function setPageParamName($pageParamName)
{
$this->_PageParaName = $pageParamName;
}

/**
* 获取页面参数名称
* @return string 页面参数名称
*/
public function getPageParamName()
{
return $this->_PageParaName;
}

/**
* 生成导航链接地址
* @param int $targetPage:导航页
* @return string 链接目标地址
*/
private function createHref($targetPage = null)
{
$params = $this->_front->getRequest()->getParams();
$module = $params["module"];
$controller = $params["controller"];
$action = $params["action"];

$targetUrl = $this->_front->getBaseUrl().”/$module/$controller/$action”;
foreach ($params as $key => $value)
{
if($key != “controller” && $key != “module” && $key != “action” && $key != $this->_PageParaName)
{
$targetUrl .= “/$key/$value”;
}
}
if(isset($targetPage))                //指定目标页
$targetUrl .= “/$this->_PageParaName/$targetPage”;
else
$targetUrl .= “/$this->_PageParaName/”;
return $targetUrl;
}
}
?>

在IndexController的indexAction中，这样实现就可以了。

public function indexAction()
{
$this->view->title = ‘View List’;
$record = new AdRecord();
$rows = $record->fetchAll()->count();
$rowsPerPage = 5;
$curPage = 1;
if($this->_request->getParam(‘page’)){
$curPage = $this->_request->getParam(‘page’);
}
$order = “id asc”;
$this->view->record = $record->fetchAll($where = null, $order,$rowsPerPage,($curPage-1)*$rowsPerPage);
$Pager = new PageClass($rows,$rowsPerPage);
$this->view->pagebar = $Pager->getNavigation();
}