SubjectTreeMapper.xml
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<?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">
<mapper namespace="com.meishu.mapper.SubjectTreeMapper">
<!-- 通用查询映射结果 -->
<resultMap id="BaseResultMap" type="com.meishu.model.SubjectTreeDO">
<id column="id" property="id" />
<result column="create_date" property="createTime" />
<result column="update_date" property="updateTime" />
<result column="delete_date" property="deleteTime" />
<result column="subject_id" property="subjectId" />
<result column="chapter_id" property="chapterId" />
<result column="tree_name" property="treeName" />
</resultMap>
<!-- 通用查询结果列 -->
<sql id="Base_Column_List">
create_date,
update_date,
delete_date,
id, subject_id, chapter, tree_name, children
</sql>
<update id="updateSubjectTree" parameterType="com.meishu.model.SubjectTreeDO">
UPDATE knowledge_tree
SET
<trim suffixOverrides=",">
parent_id = #{parentId},
update_date = now(),
<if test="treeName !=null and treeName !=''">
node_name = #{treeName},
</if>
<if test="treeOrder!=null">
chapter_order = #{treeOrder},
</if>
</trim>
where id = #{id}
</update>
</mapper>