亲测:thinkphp5中按条件分页

时间:2022-10-27 16:28:01

在thinkphp5中,实现

亲测:thinkphp5中按条件分页

首先,在

亲测:thinkphp5中按条件分页

中,将内容替换为:

<?php

namespace think\paginator\driver;

use think\Paginator;

class Bootstrap extends Paginator
{

    /*
     * 上一页按钮
     * @param string $text
     * @return string
     */
    protected function getPreviousButton($text = "上一页")
    {

        if ($this->currentPage() <= 1) {
            return $this->getDisabledTextWrapper($text);
        }

        $url = $this->url(
            $this->currentPage() - 1
        );

        return $this->getPageLinkWrapper($url, $text);
    }

    /**
     * 下一页按钮
     * @param string $text
     * @return string
     */
    protected function getNextButton($text = '下一页')
    {
        if (!$this->hasMore) {
            return $this->getDisabledTextWrapper($text);
        }

        $url = $this->url($this->currentPage() + 1);

        return $this->getPageLinkWrapper($url, $text);
    }

     /**
     * 首页按钮
     * @param string $text
     * @return string
     */
    protected function getFirstButton($text = '首页')
    {
        $nowPage = $this->rollPage;//计算分页临时变量
        //当  总页数大于定义的页数时  且  当前页数大于前几页时  显示首页
        if ($this->lastPage > $this->showPage && $this->currentPage > $nowPage) {
            
            $url = $this->url(1);
            
            return $this->getPageLinkWrapper($url, $text);
        }
    }

    /**
     * 末页按钮
     * @param string $text
     * @return string
     */
    protected function getLastButton($text = '末页')
    {
        $nowPage = $this->rollPage;//计算分页临时变量
        
        //当  总页数大于定义的页数时  且  当前页数小于最后的几页时  显示末页
        if ($this->lastPage > $this->showPage && $this->currentPage < ($this->lastPage - $nowPage)) {
            
            $url = $this->url($this->lastPage);
            
            return $this->getPageLinkWrapper($url, $text);
        }
    }

    /**
     * 页码按钮
     * @return string
     */
    protected function getLinks()
    {
        if ($this->simple)
            return '';

        $block = [
            'first'  => null,
            'slider' => null,
            'last'   => null
        ];

        $side   = 3;
        $window = $side * 2;

        if ($this->lastPage < $window + 6) {
            $block['first'] = $this->getUrlRange(1, $this->lastPage);
        } elseif ($this->currentPage <= $window) {
            $block['first'] = $this->getUrlRange(1, $window + 2);
            $block['last']  = $this->getUrlRange($this->lastPage - 1, $this->lastPage);
        } elseif ($this->currentPage > ($this->lastPage - $window)) {
            $block['first'] = $this->getUrlRange(1, 2);
            $block['last']  = $this->getUrlRange($this->lastPage - ($window + 2), $this->lastPage);
        } else {
            $block['first']  = $this->getUrlRange(1, 2);
            $block['slider'] = $this->getUrlRange($this->currentPage - $side, $this->currentPage + $side);
            $block['last']   = $this->getUrlRange($this->lastPage - 1, $this->lastPage);
        }

        $html = '';

        if (is_array($block['first'])) {
            $html .= $this->getUrlLinks($block['first']);
        }

        if (is_array($block['slider'])) {
            $html .= $this->getDots();
            $html .= $this->getUrlLinks($block['slider']);
        }

        if (is_array($block['last'])) {
            $html .= $this->getDots();
            $html .= $this->getUrlLinks($block['last']);
        }

        return $html;
    }

    /**
     * 渲染分页html
     * @return mixed
     */
    public function render()
    {
        if ($this->hasPages()) {
            if ($this->simple) {
                return sprintf(
                    '<ul class="pager">%s %s</ul>',
                    $this->getPreviousButton(),
                    $this->getNextButton()
                );
            } else {
                return sprintf(
                    '<ul class="pagination">%s %s %s</ul>',
                    $this->getPreviousButton(),
                    $this->getLinks(),
                    $this->getNextButton()
                );
            }
        }
    }

    /**
     * 生成一个可点击的按钮
     *
     * @param  string $url
     * @param  int    $page
     * @return string
     */
    protected function getAvailablePageWrapper($url, $page)
    {
        return '<li><a href="' . htmlentities($url) . '">' . $page . '</a></li>';
    }

    /**
     * 生成一个禁用的按钮
     *
     * @param  string $text
     * @return string
     */
    protected function getDisabledTextWrapper($text)
    {
        return '<li class="disabled"><span>' . $text . '</span></li>';
    }

    /**
     * 生成一个激活的按钮
     *
     * @param  string $text
     * @return string
     */
    protected function getActivePageWrapper($text)
    {
        return '<li class="active"><span>' . $text . '</span></li>';
    }

    /**
     * 生成省略号按钮
     *
     * @return string
     */
    protected function getDots()
    {
        return $this->getDisabledTextWrapper('...');
    }

    /**
     * 批量生成页码按钮.
     *
     * @param  array $urls
     * @return string
     */
    protected function getUrlLinks(array $urls)
    {
        $html = '';

        foreach ($urls as $page => $url) {
            $html .= $this->getPageLinkWrapper($url, $page);
        }

        return $html;
    }

    /**
     * 生成普通页码按钮
     *
     * @param  string $url
     * @param  int    $page
     * @return string
     */
    protected function getPageLinkWrapper($url, $page)
    {
        if ($page == $this->currentPage()) {
            return $this->getActivePageWrapper($page);
        }

        return $this->getAvailablePageWrapper($url, $page);
    }
}

而在控制器中,假设不使用model

$data = Db::table('表名')->alias('a')->join('表名2 b ','a.字段= t.字段') -> where($where) ->order('排序')->paginate(2);   
$this -> assign('data',$data);//数据
$this->assign("page",$data->render());  //分页

注意,page不能如下,这样只会生成上一页和下一页,而不会生成其他2,3,4等页面

 
$page = $data->render();
$this->assign("page",$page);  //分页

最后,在前端展示:

{$page}

样式为:

<style>
/*分页样式*/  
.pagination{text-align:center;margin-top:20px;margin-bottom: 20px;}  
.pagination li{margin:0px 10px; border:1px solid #e6e6e6;padding: 3px 8px;display: inline-block;}  
.pagination .active{background-color: #46A3FF;color: #fff;}  
.pagination .disabled{color:#aaa;} 
</style>