mec/mec-web/src/main/resources/config/mybatis/ClassGroupMapper.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.web.dal.dao.ClassGroupDao">
    <resultMap type="com.ym.mec.web.dal.entity.ClassGroup" id="ClassGroup">
        <result column="id_" property="id"/>
        <result column="music_group_id_" property="musicGroupId"/>
        <result column="subject_id_" property="subjectId"/>
        <result column="name_" property="name"/>
        <result column="student_num_" property="studentNum"/>
        <result column="assistant_teacher_id_" property="assistantTeacherId"/>
        <result column="main_teacher_id_" property="mainTeacherId"/>
        <result column="create_time_" property="createTime"/>
        <result column="update_time_" property="updateTime"/>
        <result column="type_" property="type" typeHandler="com.ym.mec.common.dal.CustomEnumTypeHandler"/>
        <result column="teacher_salary_" property="teacherSalary"/>
    </resultMap>


    <insert id="insert" parameterType="com.ym.mec.web.dal.entity.ClassGroup" useGeneratedKeys="true" keyColumn="id"
            keyProperty="id">
        INSERT INTO class_group
        <trim prefix="(" suffix=")" suffixOverrides=",">
            <if test="id!=null">id_,</if>
            <if test="musicGroupId!=null">music_group_id_,</if>
            <if test="subjectId!=null">subject_id_,</if>
            <if test="name!=null">name_,</if>
            <if test="studentNum!=null">student_num_,</if>
            <if test="assistantTeacherId!=null">assistant_teacher_id_,</if>
            <if test="mainTeacherId!=null">main_teacher_id_,</if>
            <if test="createTime!=null">create_time_,</if>
            <if test="updateTime!=null">update_time_,</if>
            <if test="type!=null">type_,</if>
            <if test="teacherSalary!=null">teacher_salary_</if>
        </trim>
        VALUES
        <trim prefix="(" suffix=")" suffixOverrides=",">
            <if test="id!=null">#{id},</if>
            <if test="musicGroupId!=null">#{musicGroupId},</if>
            <if test="subjectId!=null">#{subjectId},</if>
            <if test="name!=null">#{name},</if>
            <if test="studentNum!=null">#{studentNum},</if>
            <if test="assistantTeacherId!=null">#{assistantTeacherId},</if>
            <if test="mainTeacherId!=null">#{mainTeacherId},</if>
            <if test="createTime!=null">#{createTime},</if>
            <if test="updateTime!=null">#{updateTime},</if>
            <if test="type!=null">#{type},</if>
            <if test="teacherSalary!=null">#{teacherSalary}</if>
        </trim>
    </insert>

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

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

    <!-- 根据主键查询一条记录 -->
    <update id="update" parameterType="com.ym.mec.web.dal.entity.ClassGroup">
        UPDATE class_group
        <set>
            <if test="mainTeacherId != null">
                main_teacher_id_ = #{mainTeacherId},
            </if>
            <if test="subjectId != null">
                subject_id_ = #{subjectId},
            </if>
            <if test="studentNum != null">
                student_num_ = #{studentNum},
            </if>
            <if test="updateTime != null">
                update_time_ = #{updateTime},
            </if>
            <if test="assistantTeacherId != null">
                assistant_teacher_id_ = #{assistantTeacherId},
            </if>
            <if test="teacherSalary != null">
                teacher_salary_ = #{teacherSalary},
            </if>
            <if test="musicGroupId != null">
                music_group_id_ = #{musicGroupId},
            </if>
            <if test="type != null">
                type_ = #{type,typeHandler=com.ym.mec.common.dal.CustomEnumTypeHandler},
            </if>
            <if test="name != null">
                name_ = #{name},
            </if>
        </set>
        WHERE id_ = #{id}
    </update>

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

    <!-- 分页查询 -->
    <select id="queryPage" resultMap="ClassGroup" parameterType="map">
        SELECT * FROM class_group ORDER BY id_
        <include refid="global.limit"/>
    </select>

    <!-- 查询当前表的总记录数 -->
    <select id="queryCount" resultType="int">
		SELECT COUNT(*) FROM class_group
	</select>

    <!-- 查询根据主教助教查询班级信息 -->
    <select id="findClassGroup4Teacher" resultMap="ClassGroup">
        SELECT
        c.*,
        m.*
        FROM
        class_group c,
        music_group m
        WHERE
        c.main_teacher_id_ = #{teacherId}
        OR
        c.assistant_teacher_id_ = #{teacherId}
    </select>
</mapper>