src/main/java/com/example/g8backend/mapper/PostMapper.java

package com.example.g8backend.mapper;

import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import com.example.g8backend.entity.Post;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Param;

import java.util.List;

@Mapper
public interface PostMapper extends BaseMapper<Post> {
    List<Post> getPostsByUserId(@Param("userId") Long userId);
}