php 重写分页器 CLinkPager的实例
发布:smiling 来源: PHP粉丝网 添加日期:2021-08-17 10:38:04 浏览: 评论:0
这篇文章主要介绍了php 重写分页器 CLinkPager的实例的相关资料,希望通过本文能帮助到大家,让大家实现这样的功能,需要的朋友可以参考下
1、自定义的分页器类放在哪里?
有两个位置可以放,
第一种是放在 protected/extensions 中,在使用是import进来,或在config文件中import进来;
第二种是放在 protected/components 中,作为组件存在,不需要import
2、用派生方式是最好的
class MyPager extends CLinkPager
入口函数是:public function run() ,当显示分页器时run()被调用,里面的输出就会显示在相应位置;
其他的完全自定义,如果你不知道上一页、下一页、首页、尾页、总页数、当前页码等信息,可以参考CLinkPager的源码,yii/frameworks/web/widgets/pagers/CLinkPager.php
- <?php
- class MyPager extends CLinkPager
- {
- const CSS_FIRST_PAGE='first';
- const CSS_LAST_PAGE='last';
- const CSS_PREVIOUS_PAGE='previous';
- const CSS_NEXT_PAGE='next';
- const CSS_INTERNAL_PAGE='page';
- const CSS_HIDDEN_PAGE='hidden';
- const CSS_SELECTED_PAGE='selected';
- /**
- * @var string the CSS class for the first page button. Defaults to 'first'.
- * @since 1.1.11
- */
- public $firstPageCssClass=self::CSS_FIRST_PAGE;
- /**
- * @var string the CSS class for the last page button. Defaults to 'last'.
- * @since 1.1.11
- */
- public $lastPageCssClass=self::CSS_LAST_PAGE;
- /**
- * @var string the CSS class for the previous page button. Defaults to 'previous'.
- * @since 1.1.11
- */
- public $previousPageCssClass=self::CSS_PREVIOUS_PAGE;
- /**
- * @var string the CSS class for the next page button. Defaults to 'next'.
- * @since 1.1.11
- */
- public $nextPageCssClass=self::CSS_NEXT_PAGE;
- /**
- * @var string the CSS class for the internal page buttons. Defaults to 'page'.
- * @since 1.1.11
- */
- public $internalPageCssClass=self::CSS_INTERNAL_PAGE;
- /**
- * @var string the CSS class for the hidden page buttons. Defaults to 'hidden'.
- * @since 1.1.11
- */
- public $hiddenPageCssClass=self::CSS_HIDDEN_PAGE;
- /**
- * @var string the CSS class for the selected page buttons. Defaults to 'selected'.
- * @since 1.1.11
- */
- public $selectedPageCssClass=self::CSS_SELECTED_PAGE;
- /**
- * @var integer maximum number of page buttons that can be displayed. Defaults to 10.
- */
- public $maxButtonCount=10;
- /**
- * @var string the text label for the next page button. Defaults to 'Next >'.
- */
- public $nextPageLabel;
- /**
- * @var string the text label for the previous page button. Defaults to '< Previous'.
- */
- public $prevPageLabel;
- /**
- * @var string the text label for the first page button. Defaults to '<< First'.
- */
- public $firstPageLabel;
- /**
- * @var string the text label for the last page button. Defaults to 'Last >>'.
- */
- public $lastPageLabel;
- /**
- * @var string the text shown before page buttons. Defaults to 'Go to page: '.
- */
- public $header;
- /**
- * @var string the text shown after page buttons.
- */
- public $footer='';
- /**
- * @var mixed the CSS file used for the widget. Defaults to null, meaning
- * using the default CSS file included together with the widget.
- * If false, no CSS file will be used. Otherwise, the specified CSS file
- * will be included when using this widget.
- */
- public $cssFile;
- /**
- * @var array HTML attributes for the pager container tag.
- */
- public $htmlOptions=array();
- /**
- * Initializes the pager by setting some default property values.
- */
- public function init()
- {
- if($this->nextPageLabel===null)
- $this->nextPageLabel=Yii::t('yii','Next >');
- if($this->prevPageLabel===null)
- $this->prevPageLabel=Yii::t('yii','< Previous');
- //if($this->firstPageLabel===null)
- // $this->firstPageLabel=Yii::t('yii','<< First');
- //if($this->lastPageLabel===null)
- // $this->lastPageLabel=Yii::t('yii','Last >>');
- if($this->header===null)
- $this->header=Yii::t('yii','Go to page: ');
- if(!isset($this->htmlOptions['id']))
- $this->htmlOptions['id']=$this->getId();
- if(!isset($this->htmlOptions['class']))
- $this->htmlOptions['class']='yiiPager';
- }
- /**
- * Executes the widget.
- * This overrides the parent implementation by displaying the generated page buttons.
- */
- public function run()
- {
- $this->registerClientScript();
- $buttons=$this->createPageButtons();
- if(emptyempty($buttons))
- return;
- echo $this->header;
- // echo CHtml::tag('ul',$this->htmlOptions,implode("\n",$buttons));
- echo implode("\n",$buttons);
- echo $this->footer;
- }
- /**
- * Creates the page buttons.
- * @return array a list of page buttons (in HTML code).
- */
- protected function createPageButtons()
- {
- if(($pageCount=$this->getPageCount())<=1)
- return array();
- list($beginPage,$endPage,$ellipsis)=$this->getPageRange();
- $currentPage=$this->getCurrentPage(false); // currentPage is calculated in getPageRange()
- $buttons=array();
- // first page
- //$buttons[]=$this->createPageButton($this->firstPageLabel,0,$this->firstPageCssClass,$currentPage<=0,false);
- // prev page
- if(($page=$currentPage-1)<0)
- $page=0;
- if($currentPage == 0){
- $buttons[] = "<span style='background:#a3a3a3'><上一頁</span>";
- }else{
- $buttons[]=$this->createPageButton($this->prevPageLabel,$page,$this->previousPageCssClass,$currentPage<=0,false);
- }
- // internal pages start
- // first
- $buttons[]=$this->createPageButton(1,0,$this->internalPageCssClass,false,$i==$currentPage);
- //middle
- if($ellipsis == 'both'){
- $buttons[] = "<span style='background:#a3a3a3'>...</span>";
- }
- for($i=$beginPage;$i<=$endPage;++$i){
- if($ellipsis == 'left' && $i == $beginPage){
- $buttons[] = "<span style='background:#a3a3a3'>...</span>";
- }
- $buttons[]=$this->createPageButton($i+1,$i,$this->internalPageCssClass,false,$i==$currentPage);
- if($ellipsis == 'right' && $i == $endPage){
- $buttons[] = "<span style='background:#a3a3a3'>...</span>";
- }
- }
- if($ellipsis == 'both'){
- $buttons[] = "<span style='background:#a3a3a3'>...</span>";
- }
- // last
- $buttons[]=$this->createPageButton($pageCount,$pageCount - 1,$this->internalPageCssClass,false,$i==$currentPage);
- // internal pages end
- // next page
- if(($page=$currentPage+1)>=$pageCount-1)
- $page=$pageCount-1;
- if($currentPage == ($pageCount-1)){
- $buttons[] = "<span style='background:#a3a3a3'>下一頁></span>";
- }else{
- $buttons[]=$this->createPageButton($this->nextPageLabel,$page,$this->nextPageCssClass,$currentPage>=$pageCount-1,false);
- }
- // last page
- //$buttons[]=$this->createPageButton($this->lastPageLabel,$pageCount-1,$this->lastPageCssClass,$currentPage>=$pageCount-1,false);
- return $buttons;
- }
- /**
- * Creates a page button.
- * You may override this method to customize the page buttons.
- * @param string $label the text label for the button
- * @param integer $page the page number
- * @param string $class the CSS class for the page button.
- * @param boolean $hidden whether this page button is visible
- * @param boolean $selected whether this page button is selected
- * @return string the generated button
- */
- protected function createPageButton($label,$page,$class,$hidden,$selected)
- {
- if($hidden || $selected)
- $class.=' '.($hidden ? $this->hiddenPageCssClass : $this->selectedPageCssClass);
- if ($selected) {
- $result = "<span>" . ++$page . "</span>";
- } else {
- $result = CHtml::link($label,$this->createPageUrl($page));
- }
- return $result;
- }
- /**
- * @return array the begin and end pages that need to be displayed.
- */
- protected function getPageRange()
- {
- $currentPage=$this->getCurrentPage();
- $pageCount=$this->getPageCount();
- /*$beginPage=max(0, $currentPage-(int)($this->maxButtonCount/2));
- if(($endPage=$beginPage+$this->maxButtonCount-1)>=$pageCount)
- {
- $endPage=$pageCount-1;
- $beginPage=max(0,$endPage-$this->maxButtonCount+1);
- }*/
- if($pageCount > $this->maxButtonCount){
- if($currentPage > 4 && $currentPage < ($pageCount - 4)){
- // print_r('a');
- $beginPage = $currentPage - 2;
- $endPage = $currentPage + 2;
- $ellipsis = 'both';
- }else{
- $beginPage=max(1, $currentPage-(int)($this->maxButtonCount/2));
- if($beginPage == 1){
- $ellipsis = 'right';
- }else{
- $ellipsis = 'left';
- }
- if(($endPage=$beginPage+$this->maxButtonCount-1)>=$pageCount)
- {
- // print_r('b');
- $endPage=$pageCount-2;
- $beginPage=max(1,$endPage-$this->maxButtonCount+1);
- }elseif(($endPage=$beginPage+$this->maxButtonCount-1)>=$pageCount-2){
- // print_r('c');
- $endPage=$pageCount-2;
- }
- }
- }else{
- $beginPage=max(1, $currentPage-(int)($this->maxButtonCount/2));
- if(($endPage=$beginPage+$this->maxButtonCount-1)>=$pageCount)
- {
- $endPage=$pageCount-2;
- $beginPage=max(1,$endPage-$this->maxButtonCount+1);
- }
- }
- return array($beginPage,$endPage, $ellipsis);
- }
- /**
- * Registers the needed client scripts (mainly CSS file).
- */
- public function registerClientScript()
- {
- if($this->cssFile!==false)
- self::registerCssFile($this->cssFile);
- }
- /**
- * Registers the needed CSS file.
- * @param string $url the CSS URL. If null, a default CSS URL will be used.
- */
- public static function registerCssFile($url=null)
- {
- if($url===null)
- $url=CHtml::asset(Yii::getPathOfAlias('system.web.widgets.pagers.pager').'.css');
- Yii::app()->getClientScript()->registerCssFile($url);
- }
- }
3、调用方式
在View里的相应widget,定义pager的class为自定义的分页器类名即可,参考:
- $this->widget('zii.widgets.CListView', array(
- 'dataProvider'=>$dataProvider,
- 'itemView'=>'_view_t',
- 'pager'=>array(
- 'class'=>'MyPager',
- )
- ));
Tags: php分页器 CLinkPager
- 上一篇:完美的php分页类
- 下一篇:php实现网页上一页下一页翻页过程详解
推荐文章
热门文章
最新评论文章
- 写给考虑创业的年轻程序员(10)
- PHP新手上路(一)(7)
- 惹恼程序员的十件事(5)
- PHP邮件发送例子,已测试成功(5)
- 致初学者:PHP比ASP优秀的七个理由(4)
- PHP会被淘汰吗?(4)
- PHP新手上路(四)(4)
- 如何去学习PHP?(2)
- 简单入门级php分页代码(2)
- php中邮箱email 电话等格式的验证(2)