package com.ycl.controller;
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import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
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import com.baomidou.mybatisplus.core.metadata.IPage;
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import com.baomidou.mybatisplus.extension.api.ApiController;
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import com.baomidou.mybatisplus.extension.api.R;
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import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
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import com.github.pagehelper.PageHelper;
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import com.github.pagehelper.PageInfo;
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import com.ycl.entity.NewsColumnInformation;
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import com.ycl.entity.NewsInformation;
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import com.ycl.service.NewsColumnInformationService;
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import com.ycl.service.NewsInformationService;
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import com.ycl.vo.depart.UmsDepartVO;
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import io.swagger.annotations.Api;
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import io.swagger.annotations.ApiOperation;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.web.bind.annotation.*;
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import javax.annotation.Resource;
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import java.io.Serializable;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.List;
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import java.util.stream.Collectors;
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import java.util.stream.Stream;
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/**
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* 栏目咨询中间表(NewsColumnInformation)表控制层
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*
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* @author makejava
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* @since 2022-11-17 11:38:27
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*/
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@RestController
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@RequestMapping("newsColumnInformation")
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@Api(tags = "栏目咨询中间表控制层")
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public class NewsColumnInformationController extends ApiController {
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/**
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* 服务对象
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*/
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@Resource
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private NewsColumnInformationService newsColumnInformationService;
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@Autowired
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private NewsInformationService newsInformationService;
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/**
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* 分页查询所有数据
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*
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* @param page 分页对象
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* @param newsColumnInformation 查询实体
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* @return 所有数据
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*/
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@GetMapping
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@ApiOperation(value = "查询所有数据")
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public R selectAll(Page<NewsColumnInformation> page, NewsColumnInformation newsColumnInformation) {
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return success(this.newsColumnInformationService.page(page, new QueryWrapper<>(newsColumnInformation)));
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}
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/**
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* 通过主键查询单条数据
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*
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* @param id 主键
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* @return 单条数据
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*/
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@GetMapping("{id}")
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@ApiOperation(value = "按id查询数据")
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public R selectOne(@PathVariable Serializable id) {
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return success(this.newsColumnInformationService.getById(id));
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}
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/**
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* 新增数据
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*
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* @param newsColumnInformation 实体对象
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* @return 新增结果
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*/
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@PostMapping
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@ApiOperation(value = "新增数据")
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public R insert(@RequestBody NewsColumnInformation newsColumnInformation) {
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return success(this.newsColumnInformationService.save(newsColumnInformation));
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}
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/**
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* 修改数据
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*
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* @param newsColumnInformation 实体对象
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* @return 修改结果
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*/
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@PutMapping
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@ApiOperation(value = "修改数据")
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public R update(@RequestBody NewsColumnInformation newsColumnInformation) {
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return success(this.newsColumnInformationService.updateById(newsColumnInformation));
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}
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/**
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* 删除数据
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*
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* @param idList 主键结合
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* @return 删除结果
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*/
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@DeleteMapping
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@ApiOperation(value = "删除数据")
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public R delete(@RequestParam("idList") List<Long> idList) {
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return success(this.newsColumnInformationService.removeByIds(idList));
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}
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/**
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* 通过栏目id查对应资讯
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*
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* @param id 栏目id
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* @return 资讯查询结果
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*/
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@GetMapping("column/{id}")
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@ApiOperation(value = "按栏目id查询讯息")
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public R selectInformationByColumnId(@PathVariable Serializable id ,@RequestParam(value = "pageNum", required = false,defaultValue = "1")Integer pageNum,@RequestParam(value = "pageSize", required = false,defaultValue = "10")Integer pageSize) {
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List<NewsColumnInformation> newsColumnInformationList = newsColumnInformationService.list(new QueryWrapper<NewsColumnInformation>().eq("column_id", id));
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List<NewsInformation> resultList=new ArrayList<>();
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IPage<NewsInformation> page = new Page<>(pageNum, pageSize);
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for (NewsColumnInformation newsColumnInformation:newsColumnInformationList){
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resultList.add(newsInformationService.selectInformationById(newsColumnInformation.getInformationId()));
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}
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page.setTotal(resultList.size());
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if (pageSize>resultList.size()){
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page.setRecords(resultList);
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}
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else {
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List<List<NewsInformation>> lists = split8(resultList, pageSize);
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page.setRecords(lists.get(pageNum-1));
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}
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return success(page);
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}
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public static <T> List<List<T>> split8(List<T> list,int splitSize){
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// 每份个数 splitSize
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if( null == list || list.isEmpty() ){ return Collections.emptyList(); }
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// 列表元素数，总份数
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int size = list.size(), cnt = (size + splitSize - 1 ) / splitSize;
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return Stream
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.iterate(0,i -> i+1 )
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.limit(cnt)
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.parallel()
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.map(i -> list.parallelStream().skip( i * splitSize ).limit(splitSize).collect(Collectors.toList()))
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.filter(a -> !a.isEmpty())
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.collect(Collectors.toList());
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}
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}
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