mec/mec-biz/src/main/resources/config/mybatis/StudentCourseHomeworkReplyMapper.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<!--
这个文件是自动生成的。
不要修改此文件。所有改动将在下次重新自动生成时丢失。
-->
<mapper namespace="com.ym.mec.biz.dal.dao.StudentCourseHomeworkReplyDao">

    <resultMap type="com.ym.mec.biz.dal.entity.StudentCourseHomeworkReply" id="StudentCourseHomeworkReply">
        <result column="id_" property="id"/>
        <result column="student_course_homework_id_" property="studentCourseHomeworkId"/>
        <result column="user_id_" property="userId"/>
        <result column="content_" property="content"/>
        <result column="create_time_" property="createTime"/>
        <result column="parent_id_" property="parentId"/>
    </resultMap>

    <resultMap id="studentCourseHomeworkComment" type="com.ym.mec.biz.dal.dto.StudentCourseHomeworkCommentDto">
        <result property="replyId" column="comment_id_"></result>
        <result property="userId" column="comment_user_id_"></result>
        <result property="userName" column="comment_user_name_"></result>
        <result property="avatar" column="avatar_"/>
        <result property="isTeacher" column="is_teacher_"/>
        <result property="content" column="comment_content_"></result>
        <result property="createTime" column="comment_time"></result>
    </resultMap>

    <!-- 根据主键查询一条记录 -->
    <select id="get" resultMap="StudentCourseHomeworkReply">
		SELECT * FROM student_course_homework_reply WHERE id_ = #{id} 
	</select>

    <!-- 全查询 -->
    <select id="findAll" resultMap="StudentCourseHomeworkReply">
		SELECT * FROM student_course_homework_reply ORDER BY id_
	</select>

    <!-- 向数据库增加一条记录 -->
    <insert id="insert" parameterType="com.ym.mec.biz.dal.entity.StudentCourseHomeworkReply" useGeneratedKeys="true"
            keyColumn="id" keyProperty="id">
        INSERT INTO student_course_homework_reply
        (id_,student_course_homework_id_,user_id_,content_,create_time_,parent_id_)
        VALUES(#{id},#{studentCourseHomeworkId},#{userId},#{content},now(),#{parentId})
    </insert>

    <!-- 根据主键查询一条记录 -->
    <update id="update" parameterType="com.ym.mec.biz.dal.entity.StudentCourseHomeworkReply">
        UPDATE student_course_homework_reply
        <set>
            <if test="parentId != null">
                parent_id_ = #{parentId},
            </if>
            <if test="studentCourseHomeworkId != null">
                student_course_homework_id_ = #{studentCourseHomeworkId},
            </if>
            <if test="userId != null">
                user_id_ = #{userId},
            </if>
            <if test="content != null">
                content_ = #{content},
            </if>
        </set>
        WHERE id_ = #{id}
    </update>

    <!-- 根据主键删除一条记录 -->
    <delete id="delete">
		DELETE FROM student_course_homework_reply WHERE id_ = #{id} 
	</delete>

    <delete id="batchDeleteReplys">
      delete from student_course_homework_reply where id_ IN
      <foreach collection="list" item="id" open="(" close=")" separator=",">
          #{id}
      </foreach>
    </delete>

    <sql id="queryCondition">
        <where>
            <if test="parentID!=null">
                AND schr.parent_id_ = #{parentID}
            </if>
            <if test="parentID==null">
               AND schr.parent_id_ IS NULL
            </if>
            <if test="studentCourseHomeworkId != null">
               AND schr.student_course_homework_id_=#{studentCourseHomeworkId}
            </if>
        </where>
    </sql>

    <!-- 分页查询 -->
    <select id="queryPage" resultMap="studentCourseHomeworkComment" parameterType="map">
        SELECT
            schr.id_ comment_id_,
            schr.user_id_ comment_user_id_,
            suc.username_ comment_user_name_,
            suc.avatar_,
            IF(suc.user_type_!='STUDENT',1,0) is_teacher_,
            schr.content_ comment_content_,
            schr.create_time_ comment_time
        FROM
        student_course_homework_reply schr
        LEFT JOIN sys_user suc ON schr.user_id_=suc.id_
        <include refid="queryCondition"/>
        <include refid="global.limit"/>
    </select>

    <!-- 查询当前表的总记录数 -->
    <select id="queryCount" resultType="int">
		SELECT COUNT(*) FROM student_course_homework_reply schr
		<include refid="queryCondition"/>
	</select>
    <select id="findAllReplyByStudentCourseHomeworkID" resultMap="StudentCourseHomeworkReply">
        select id_,IF(parent_id_ IS NULL,0,parent_id_) parent_id_ from student_course_homework_reply where student_course_homework_id_=#{studentCourseHomeworkID}
    </select>
</mapper>