# 空字符串判断

jiaosong

2023-11-06 fa8b08c15506a292dba208a13bb65bed9723d933

 server/services/src/main/java/com/doumee/service/business/impl/MemberRidesServiceImpl.java

@@ -177,10 +177,12 @@
    public MemberRides findJoinById(String id) {

        MPJLambdaWrapper<MemberRides> queryWrapper = new MPJLambdaWrapper<>();
        queryWrapper.leftJoin(BaseParam.class,BaseParam::getId,MemberRides::getParamId);
        queryWrapper.leftJoin(BaseParam.class,BaseParam::getId,MemberRides::getParamId)
                    .leftJoin(Member.class,Member::getId,MemberRides::getMemberId);
        queryWrapper.eq(MemberRides::getId, id);
        queryWrapper.selectAll(MemberRides.class);
        queryWrapper.selectAs(BaseParam::getName,MemberRidesDTO::getBikeType) ;
        queryWrapper.selectAs(Member::getOpenid,MemberRides::getMemberOpenid);
        queryWrapper.last("limit 1");

        return memberRidesJoinMapper.selectJoinOne(MemberRides.class, queryWrapper);