src/main/java/com/yx/service/impl/LendListServiceImpl.java

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package com.yx.service.impl;

import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInfo;
import com.yx.dao.BookInfoMapper;
import com.yx.dao.LendListMapper;
import com.yx.po.BookInfo;
import com.yx.po.LendList;
import com.yx.service.LendListService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.Date;
import java.util.List;


@Service("lendListService")
public class LendListServiceImpl implements LendListService {

    @Autowired
    private LendListMapper lendListMapper;
    @Autowired
    private BookInfoMapper bookInfoMapper;


    @Override
    public PageInfo<LendList> queryLendListAll(LendList lendList, int page, int limit) {
        PageHelper.startPage(page,limit);
        List<LendList> list=lendListMapper.queryLendListAll(lendList);

        PageInfo pageInfo=new PageInfo(list);
        return pageInfo;
    }

    @Override
    public void addLendListSubmit(LendList lendList) {
        lendListMapper.insert(lendList);
    }


    @Override
    public void deleteLendListById(List<String> ids, List<String> bookIds) {

        //删除借阅记录
        for(String id:ids){
            lendListMapper.deleteByPrimaryKey(Integer.parseInt(id));
        }
        //更改图书标识，更新状态为未借出
        for(String bid:bookIds){
            //根据id查询图书记录信息
            BookInfo bookInfo=bookInfoMapper.selectByPrimaryKey(Integer.parseInt(bid));
            bookInfo.setStatus(0);//该为未借出
            bookInfoMapper.updateByPrimaryKey(bookInfo);
        }
    }

    @Override
    public void updateLendListSubmit(List<String> ids, List<String> bookIds) {
        for(String id:ids){
            //根据id查询借阅记录信息