package com.whyc.service;
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import com.baomidou.mybatisplus.core.conditions.update.UpdateWrapper;
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import com.baomidou.mybatisplus.core.toolkit.Wrappers;
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import com.whyc.mapper.StationPowerRelationMapper;
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import com.whyc.pojo.db_batt.StationPowerRelation;
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import org.springframework.stereotype.Service;
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import javax.annotation.Resource;
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@Service
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public class StationPowerRelationService {
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@Resource
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private StationPowerRelationMapper mapper;
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public void add(int stationId, int powerId) {
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StationPowerRelation relation = new StationPowerRelation();
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relation.setStationId(stationId);
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relation.setPowerId(powerId);
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//获取最大num
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//int num = mapper.getMaxNum();
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//relation.setNum(num+1);
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mapper.insert(relation);
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}
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public void deleteByPowerId(int powerId) {
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UpdateWrapper<StationPowerRelation> update = Wrappers.update();
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update.eq("pinf_id",powerId);
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mapper.delete(update);
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}
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}
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