package com.peanut.modules.book.dao;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.github.yulichang.base.MPJBaseMapper;
import com.peanut.modules.book.entity.BookEntity;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Param;
import org.apache.ibatis.annotations.Select;

import java.util.List;

/**
 * 图书表
 * 
 * @author yl
 * @email yl328572838@163.com
 * @date 2022-08-04 15:36:59
 */
@Mapper
public interface BookDao extends MPJBaseMapper<BookEntity> {

    List<BookEntity> queryBookInOther(String publisherName,String authorName);


    @Select("select t.* from book t left join user_ebook_buy t1 on t.id = t1.book_id ${ew.customSqlSegment} limit #{start},#{limit}")
    List<BookEntity> queryUserListenBooksNobuy(@Param("ew") QueryWrapper<BookEntity> wrapper,@Param("start") int start,@Param("limit") int limit);

    @Select("select count(*) as sum from book t left join user_ebook_buy t1 on t.id = t1.book_id ${ew.customSqlSegment}")
    Integer queryUserListenBooksNobuyCount(@Param("ew") QueryWrapper<BookEntity> wrapper);
}