icvpServer/src/main/java/com/ymwk/icvp/signature/service/impl/PictureServiceImpl.java

package com.ymwk.icvp.signature.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.ymwk.icvp.component.PageResult;
import com.ymwk.icvp.component.ResponseDTO;
import com.ymwk.icvp.component.SmartPageUtil;
import com.ymwk.icvp.signature.entity.Picture;
import com.ymwk.icvp.signature.mapper.PictureMapper;
import com.ymwk.icvp.signature.model.PictureListRequest;
import com.ymwk.icvp.signature.service.PictureService;
import jakarta.annotation.Resource;
import org.springframework.stereotype.Service;

import java.util.List;
import java.util.Optional;

@Service
public class PictureServiceImpl implements PictureService {
    @Resource
    private PictureMapper pictureMapper;

    @Override
    public ResponseDTO<PageResult<Picture>> getPictureList(PictureListRequest pictureListRequest) {

        LambdaQueryWrapper<Picture> wrapper = new LambdaQueryWrapper<>();
        wrapper.like(pictureListRequest.getName() != null, Picture::getName, pictureListRequest.getName());


        Page<Picture> page = new Page<>(pictureListRequest.getPageNum(),pictureListRequest.getPageSize());
        List<Picture> examRecordList = pictureMapper.selectList(page,wrapper);

        PageResult<Picture> pageResult = SmartPageUtil.convert2PageResult(page, examRecordList);


        return ResponseDTO.ok(pageResult);
    }

    @Override
    public ResponseDTO<String> deletePicture(Integer id) {
        Optional<Picture> pictureOptional = Optional.ofNullable(pictureMapper.selectById(id));
        if (pictureOptional.isPresent()) {
            pictureMapper.deleteById(id);
            return ResponseDTO.ok("删除成功");
        } else {
            return ResponseDTO.error(100001,"图片不存在");
        }
    }

}