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package com.example.mapper;
import com.example.entity.Grade;
import org.apache.ibatis.annotations.Delete;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Select;
import org.apache.ibatis.annotations.Update;
import java.util.List;
public interface GradeMapper {
@Insert("insert into grade (course_id,student_id,score,comment,feedback) " +
"values (#{courseId},#{studentId},#{score},#{comment},#{feedback})")
void insert(Grade grade);
List<Grade> selectAll(Grade grade); //关联查询
@Update("update grade set score = #{score}, comment =#{comment}, feedback =#{feedback} where id = #{id}")
void update(Grade grade);
@Select("select * from grade where student_id = #{studentId} and course_id =#{courseId}")
Grade selectByCondition(Grade grade);
@Delete("delete from grade where id = #{id}")
void deleteById(Integer id);
}