package xyz.fortern.dao;

import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.One;
import org.apache.ibatis.annotations.Param;
import org.apache.ibatis.annotations.Result;
import org.apache.ibatis.annotations.Results;
import org.apache.ibatis.annotations.Select;
import org.apache.ibatis.type.JdbcType;
import xyz.fortern.pojo.News;

import java.util.List;

@Mapper
public interface NewsMapper extends BaseMapper<News> {
	//1. 分页查询动态
	
	/**
	 * 分页查询动态
	 *
	 * @param offset 偏移量
	 * @param rows   查询数量
	 */
	@Select("select * from news limit #{offset}, #{rows}")
	@Results({
			@Result(column = "id", property = "id", jdbcType = JdbcType.INTEGER, id = true),
			@Result(column = "uid", property = "uid", jdbcType = JdbcType.INTEGER),
			@Result(column = "uid", property = "simpleUser", one = @One(select = "xyz.fortern.dao.UserMapper.selectSimpleInfoById")),
			@Result(column = "aid", property = "aid", jdbcType = JdbcType.INTEGER),
			@Result(column = "aid", property = "SimpleArticle", one = @One(select = "xyz.fortern.dao.ArticleMapper.selectSimpleInfoById")),
			@Result(column = "time", property = "time", jdbcType = JdbcType.DATE),
	})
	List<News> getNews(@Param("offset") int offset, @Param("rows") int rows);
}