129 lines
6.3 KiB
PHP
129 lines
6.3 KiB
PHP
<?php
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namespace app\common\helpers;
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/**
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* Created by PhpStorm.
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* Author:
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* Date: 2017/2/27
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* Time: 下午1:11
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*/
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class PaginationHelper
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{
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/**
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* 获取分页导航HTML
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* @param int $total 总记录数
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* @param int $pageIndex 当前页码
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* @param int $pageSize 每页显示条数
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* @param string $url 要生成的 url 格式，页码占位符请使用 *，如果未写占位符，系统将自动生成
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* @param array $context
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* @return string
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*/
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public static function show($total, $pageIndex, $pageSize = 15, $url = '', $context = []) {
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!$context && $context = ['before' => 5, 'after' => 4, 'ajaxcallback' => '', 'callbackfuncname' => ''];
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$pdata = [
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'tcount' => 0,
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'tpage' => 0,
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'cindex' => 0,
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'findex' => 0,
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'pindex' => 0,
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'nindex' => 0,
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'lindex' => 0,
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'options' => ''
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];
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$context['isajax'] = false;
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if (isset($context['ajaxcallback']) && $context['ajaxcallback']) {
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$context['isajax'] = true;
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}
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$callbackfunc = '';
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if (isset($context['callbackfuncname']) && $context['callbackfuncname']) {
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$callbackfunc = $context['callbackfuncname'];
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}
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$pdata['tcount'] = $total;
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$pdata['tpage'] = (empty($pageSize) || $pageSize < 0) ? 1 : ceil($total / $pageSize);
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if ($pdata['tpage'] <= 1) {
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return '';
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}
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$cindex = $pageIndex;
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$cindex = min($cindex, $pdata['tpage']);
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$cindex = max($cindex, 1);
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$pdata['cindex'] = $cindex;
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$pdata['findex'] = 1;
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$pdata['pindex'] = $cindex > 1 ? $cindex - 1 : 1;
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$pdata['nindex'] = $cindex < $pdata['tpage'] ? $cindex + 1 : $pdata['tpage'];
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$pdata['lindex'] = $pdata['tpage'];
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if ($context['isajax'] === true) {
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if (empty($url)) {
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$url = \YunShop::app()->script_name . '?' . http_build_query($_REQUEST);
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}
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$pdata['faa'] = 'href="javascript:;" page="' . $pdata['findex'] . '" '. ($callbackfunc ? 'onclick="'.$callbackfunc.'(\'' . $url . '\', \'' . $pdata['findex'] . '\', this);return false;"' : '');
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$pdata['paa'] = 'href="javascript:;" page="' . $pdata['pindex'] . '" '. ($callbackfunc ? 'onclick="'.$callbackfunc.'(\'' . $url . '\', \'' . $pdata['pindex'] . '\', this);return false;"' : '');
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$pdata['naa'] = 'href="javascript:;" page="' . $pdata['nindex'] . '" '. ($callbackfunc ? 'onclick="'.$callbackfunc.'(\'' . $url . '\', \'' . $pdata['nindex'] . '\', this);return false;"' : '');
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$pdata['laa'] = 'href="javascript:;" page="' . $pdata['lindex'] . '" '. ($callbackfunc ? 'onclick="'.$callbackfunc.'(\'' . $url . '\', \'' . $pdata['lindex'] . '\', this);return false;"' : '');
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} else {
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if ($url) {
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$pdata['faa'] = 'href="?' . str_replace('*', $pdata['findex'], $url) . '"';
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$pdata['paa'] = 'href="?' . str_replace('*', $pdata['pindex'], $url) . '"';
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$pdata['naa'] = 'href="?' . str_replace('*', $pdata['nindex'], $url) . '"';
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$pdata['laa'] = 'href="?' . str_replace('*', $pdata['lindex'], $url) . '"';
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} else {
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$_REQUEST['page'] = $pdata['findex'];
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$pdata['faa'] = 'href="' . \YunShop::app()->script_name . '?' . http_build_query($_REQUEST) . '"';
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$_REQUEST['page'] = $pdata['pindex'];
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$pdata['paa'] = 'href="' . \YunShop::app()->script_name . '?' . http_build_query($_REQUEST) . '"';
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$_REQUEST['page'] = $pdata['nindex'];
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$pdata['naa'] = 'href="' . \YunShop::app()->script_name . '?' . http_build_query($_REQUEST) . '"';
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$_REQUEST['page'] = $pdata['lindex'];
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$pdata['laa'] = 'href="' . \YunShop::app()->script_name . '?' . http_build_query($_REQUEST) . '"';
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}
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}
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$html = '<div><ul class="pagination pagination-centered">';
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if ($pdata['cindex'] > 1) {
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$html .= "<li><a {$pdata['faa']} class=\"pager-nav\">首页</a></li>";
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$html .= "<li><a {$pdata['paa']} class=\"pager-nav\">«上一页</a></li>";
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}
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//页码算法：前5后4，不足10位补齐
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if (!$context['before'] && $context['before'] != 0) {
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$context['before'] = 5;
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}
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if (!$context['after'] && $context['after'] != 0) {
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$context['after'] = 4;
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}
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if ($context['after'] != 0 && $context['before'] != 0) {
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$range = array();
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$range['start'] = max(1, $pdata['cindex'] - $context['before']);
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$range['end'] = min($pdata['tpage'], $pdata['cindex'] + $context['after']);
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if ($range['end'] - $range['start'] < $context['before'] + $context['after']) {
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$range['end'] = min($pdata['tpage'], $range['start'] + $context['before'] + $context['after']);
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$range['start'] = max(1, $range['end'] - $context['before'] - $context['after']);
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}
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for ($i = $range['start']; $i <= $range['end']; $i++) {
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if (true === $context['isajax']) {
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$aa = 'href="javascript:;" page="' . $i . '" '. ($callbackfunc ? 'onclick="'.$callbackfunc.'(\'' . $url . '\', \'' . $i . '\', this);return false;"' : '');
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} else {
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if ($url) {
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$aa = 'href="?' . str_replace('*', $i, $url) . '"';
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} else {
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$_REQUEST['page'] = $i;
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$aa = 'href="?' . http_build_query($_REQUEST) . '"';
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}
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}
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$html .= ($i == $pdata['cindex'] ? '<li class="active"><a href="javascript:;">' . $i . '</a></li>' : "<li><a {$aa}>" . $i . '</a></li>');
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}
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}
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if ($pdata['cindex'] < $pdata['tpage']) {
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$html .= "<li><a {$pdata['naa']} class=\"pager-nav\">下一页»</a></li>";
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$html .= "<li><a {$pdata['laa']} class=\"pager-nav\">尾页</a></li>";
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}
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$html .= "<li><input type='text' id='jump' style='width: 25px; height: 25px;'></li>";
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$html .= "<li><a onclick =getkey(this,{$pdata['tpage']}) class=\"pager-nav\" style='float: right;' >跳转</a></li>";
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$html .= '</ul></div>';
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return $html;
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}
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} |