220 lines
6.4 KiB
PHP
220 lines
6.4 KiB
PHP
<?php
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// +----------------------------------------------------------------------
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// | likeadmin快速开发前后端分离管理后台（PHP版）
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// +----------------------------------------------------------------------
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// | 欢迎阅读学习系统程序代码，建议反馈是我们前进的动力
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// | 开源版本可自由商用，可去除界面版权logo
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// | gitee下载：https://gitee.com/likeshop_gitee/likeadmin
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// | github下载：https://github.com/likeshop-github/likeadmin
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// | 访问官网：https://www.likeadmin.cn
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// | likeadmin团队 版权所有 拥有最终解释权
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// +----------------------------------------------------------------------
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// | author: likeadminTeam
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// +----------------------------------------------------------------------
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namespace app\common\lists;
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use app\common\enum\ExportEnum;
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use app\common\service\JsonService;
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use app\common\validate\ListsValidate;
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use app\Request;
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use think\facade\Config;
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/**
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* 数据列表基类
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* Class BaseDataLists
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* @package app\common\lists
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*/
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abstract class BaseDataLists implements ListsInterface
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{
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use ListsSearchTrait;
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use ListsSortTrait;
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use ListsExcelTrait;
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public Request $request; //请求对象
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public int $pageNo; //页码
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public int $pageSize; //每页数量
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public int $limitOffset; //limit查询offset值
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public int $limitLength; //limit查询数量
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public int $pageSizeMax;
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public int $pageType = 0; //默认类型：0-一般分页；1-不分页，获取最大所有数据
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protected string $orderBy;
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protected string $field;
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protected $startTime;
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protected $endTime;
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protected $start;
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protected $end;
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protected array $params;
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protected $sortOrder = [];
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public string $export;
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public function __construct()
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{
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//参数验证
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(new ListsValidate())->get()->goCheck();
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//请求参数设置
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$this->request = request();
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$this->params = $this->request->param();
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//分页初始化
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$this->initPage();
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//搜索初始化
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$this->initSearch();
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//排序初始化
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$this->initSort();
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//导出初始化
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$this->initExport();
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}
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/**
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* @notes 分页参数初始化
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* @author 令狐冲
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* @date 2021/7/30 23:55
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*/
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private function initPage()
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{
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$this->pageSizeMax = Config::get('project.lists.page_size_max');
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$this->pageSize = Config::get('project.lists.page_size');
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$this->pageType = $this->request->get('page_type', 1);
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if ($this->pageType == 1) {
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//分页
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$this->pageNo = $this->request->get('page_no', 1) ?: 1;
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$this->pageSize = $this->request->get('page_size', $this->pageSize) ?: $this->pageSize;
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} else {
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//不分页
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$this->pageNo = 1;//强制到第一页
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$this->pageSize = $this->pageSizeMax;// 直接取最大记录数
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}
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//limit查询参数设置
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$this->limitOffset = ($this->pageNo - 1) * $this->pageSize;
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$this->limitLength = $this->pageSize;
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}
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/**
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* @notes 初始化搜索
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* @return array
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* @author 令狐冲
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* @date 2021/7/31 00:00
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*/
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private function initSearch()
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{
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if (!($this instanceof ListsSearchInterface)) {
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return [];
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}
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$startTime = $this->request->get('start_time');
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if ($startTime) {
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$this->startTime = strtotime($startTime);
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}
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$endTime = $this->request->get('end_time');
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if ($endTime) {
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$this->endTime = strtotime($endTime);
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}
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$this->start = $this->request->get('start');
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$this->end = $this->request->get('end');
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return $this->searchWhere = $this->createWhere($this->setSearch());
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}
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/**
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* @notes 初始化排序
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* @return array|string[]
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* @author 令狐冲
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* @date 2021/7/31 00:03
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*/
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private function initSort()
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{
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if (!($this instanceof ListsSortInterface)) {
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return [];
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}
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$this->field = $this->request->get('field', '');
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$this->orderBy = $this->request->get('order_by', '');
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return $this->sortOrder = $this->createOrder($this->setSortFields(), $this->setDefaultOrder());
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}
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/**
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* @notes 导出初始化
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* @return false|\think\response\Json
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* @author 令狐冲
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* @date 2021/7/31 01:15
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*/
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private function initExport()
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{
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$this->export = $this->request->get('export', '');
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//不做导出操作
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if ($this->export != ExportEnum::INFO && $this->export != ExportEnum::EXPORT) {
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return false;
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}
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//导出操作，但是没有实现导出接口
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if (!($this instanceof ListsExcelInterface)) {
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return JsonService::throw('该列表不支持导出');
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}
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$this->fileName = $this->request->get('file_name', '') ?: $this->setFileName();
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//不导出文件，不初始化一下参数
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if ($this->export != ExportEnum::EXPORT) {
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return false;
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}
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//导出文件名设置
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$this->fileName .= '-' . date('Y-m-d-His') . '.xlsx';
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//导出文件准备
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if ($this->export == ExportEnum::EXPORT) {
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//指定导出范围（例：第2页到，第5页的数据）
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if ($this->pageType == 1) {
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$this->pageStart = $this->request->get('page_start', $this->pageStart);
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$this->pageEnd = $this->request->get('page_end', $this->pageEnd);
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//改变查询数量参数（例：第2页到，第5页的数据，查询->page(2,(5-2+1)*25)
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$this->limitOffset = ($this->pageStart - 1) * $this->pageSize;
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$this->limitLength = ($this->pageEnd - $this->pageStart + 1) * $this->pageSize;
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}
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$count = $this->count();
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//判断导出范围是否有数据
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if ($count == 0 || ceil($count / $this->pageSize) < $this->pageStart) {
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$msg = $this->pageType ? '第' . $this->pageStart . '页到第' . $this->pageEnd . '页没有数据，无法导出' : '没有数据,无法导出';
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return JsonService::throw($msg);
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}
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}
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}
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/**
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* @notes 不需要分页，可以调用此方法，无需查询第二次
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* @return int
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* @author 令狐冲
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* @date 2021/7/6 00:34
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*/
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public function defaultCount(): int
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{
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return count($this->lists());
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}
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} |