package com.nova.sankuai.service.impl;
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import com.baomidou.mybatisplus.core.metadata.IPage;
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import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
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import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
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import com.nova.sankuai.domain.entity.HotCity;
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import com.nova.sankuai.infra.config.CommonException;
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import com.nova.sankuai.infra.mapper.HotCityMapper;
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import com.nova.sankuai.infra.utils.PageRequest;
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import com.nova.sankuai.service.IHotCityService;
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import lombok.AllArgsConstructor;
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import org.springframework.stereotype.Service;
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import org.springframework.transaction.annotation.Transactional;
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import java.util.List;
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/**
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* @author weikangdi
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* @create 2021/11/3
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*/
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@Service
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@AllArgsConstructor
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public class HotCityServiceImpl extends ServiceImpl<HotCityMapper, HotCity> implements IHotCityService {
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private final HotCityMapper hotCityMapper;
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@Override
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@Transactional(rollbackFor = Exception.class)
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public void saveHotCity(HotCity hotCity) {
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HotCity city = lambdaQuery().eq(HotCity::getCityId, hotCity.getCityId()).one();
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if (city != null && !city.getId().equals(hotCity.getId())) {
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throw new CommonException("该城市已经被设置为热门城市");
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}
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saveOrUpdate(hotCity);
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}
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@Override
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public List<HotCity> getHotCities() {
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List<HotCity> hotCities = hotCityMapper.getHotCities();
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return hotCities;
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}
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@Override
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public IPage<HotCity> pageHotCities(PageRequest pageRequest) {
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Page<HotCity> page = new Page<>(pageRequest.getPageNo(), pageRequest.getPageSize());
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IPage<HotCity> result = hotCityMapper.pageModel(page);
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return result;
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}
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@Override
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public void invalidHotCity(Long id, Integer status) {
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HotCity hotCity = getById(id);
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if (hotCity == null) {
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throw new CommonException("该热门城市不存在");
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}
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hotCity.setEnableFlag(status);
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updateById(hotCity);
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}
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}
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