iHotel_student_houtai/src/main/java/com/template/controller/BuildingController.java

package com.template.controller;


import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.core.toolkit.ObjectUtils;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.template.api.BuildingControllerAPI;
import com.template.model.pojo.Building;
import com.template.model.pojo.HouseNumber;
import com.template.model.result.CommonResult;
import com.template.model.vo.BuildingBarVo;
import com.template.services.BuildingService;
import com.template.services.HouseNumberService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RestController;

import java.util.ArrayList;
import java.util.List;
import java.util.stream.Collectors;

/**
 * <p>
 * 前端控制器
 * </p>
 *
 * @author ceshi
 * @since 2024-08-08
 */
@RestController
public class BuildingController implements BuildingControllerAPI {

    @Autowired
    BuildingService buildingService;

    @Autowired
    HouseNumberService houseNumberService;

    @Override
    public CommonResult save(Building building) {
        String building1 = building.getBuilding();
        String element = building.getElement();
        if (ObjectUtils.isEmpty(building1) || ObjectUtils.isEmpty(element)) {
            return CommonResult.fail("楼栋和单元不能为空");
        }

        LambdaQueryWrapper<Building> wrapper = new LambdaQueryWrapper<>();
        wrapper.eq(Building::getBuilding, building1)
                .eq(Building::getElement, element);
        Building one = buildingService.getOne(wrapper);
        if (ObjectUtils.isNotEmpty(one)) {
            return CommonResult.fail("已存在");
        }

        buildingService.save(building);

        return CommonResult.ok();
    }

    @Override
    public CommonResult getPage(int page, int size, String keyWord) {

        IPage<Building> buildingPage = new Page<>(page, size);
        LambdaQueryWrapper<Building> wrapper = new LambdaQueryWrapper<>();
        wrapper.like(ObjectUtils.isNotEmpty(keyWord), Building::getBuilding, keyWord)
                .or()
                .like(ObjectUtils.isNotEmpty(keyWord),Building::getElement,keyWord);
        wrapper.orderByAsc(Building::getBuilding)
                .orderByAsc(Building::getElement);
        IPage<Building> page1 = buildingService.page(buildingPage, wrapper);

        return CommonResult.ok(page1);
    }

    @Override
    public CommonResult update(Building building) {
        String building1 = building.getBuilding();
        String element = building.getElement();
        if (ObjectUtils.isEmpty(building1) || ObjectUtils.isEmpty(element)) {
            return CommonResult.fail("楼栋和单元不能为空");
        }

        LambdaQueryWrapper<Building> wrapper = new LambdaQueryWrapper<>();
        wrapper.eq(Building::getBuilding, building1)
                .eq(Building::getElement, element);
        Building one = buildingService.getOne(wrapper);
        if (ObjectUtils.isNotEmpty(one)) {
            return CommonResult.fail("已存在该楼栋和单元");
        }
        buildingService.updateById(building);

        return CommonResult.ok();
    }

    @Override
    public CommonResult delete(Integer buildingId) {
        LambdaQueryWrapper<HouseNumber> wrapper=new LambdaQueryWrapper<>();
        wrapper.eq(HouseNumber::getBuildingId,buildingId);
        List<HouseNumber> list = houseNumberService.list(wrapper);

        if (ObjectUtils.isNotEmpty(list)) {
            return CommonResult.fail("该楼栋下还存在房间");
        }

        buildingService.removeById(buildingId);

        return CommonResult.ok();
    }

    @Override
    public CommonResult displayBar() {

        List<String> buildings = buildingService.group();

        List<Building> list = buildingService.list(new LambdaQueryWrapper<>());

        ArrayList<BuildingBarVo> vos = new ArrayList<>();
        for (int i = 0; i < buildings.size(); i++) {
            String b = buildings.get(i);

            BuildingBarVo vo = new BuildingBarVo();
            vo.setId(1000000+i);
            vo.setElement(b);

            List<Building> ownerClasses = list.stream().filter(e -> e.getBuilding().equals(b)).collect(Collectors.toList());
            if (ownerClasses != null && ownerClasses.size() > 0) {
                vo.setBuildings(ownerClasses);
            }
            vos.add(vo);
        }

        return CommonResult.ok(vos);
    }
}