<?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.ClassGroupRelationDao">

    <resultMap type="com.ym.mec.biz.dal.entity.ClassGroupRelation" id="ClassGroupRelation">
        <result column="id_" property="id"/>
        <result column="class_group_id_" property="classGroupId"/>
        <result column="sub_class_group_id_" property="subClassGroupId"/>
        <result column="create_time_" property="createTime"/>
    </resultMap>

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

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

    <!-- 向数据库增加一条记录 -->
    <insert id="insert" parameterType="com.ym.mec.biz.dal.entity.ClassGroupRelation" useGeneratedKeys="true"
            keyColumn="id" keyProperty="id">
        <!--
        <selectKey resultClass="int" keyProperty="id" >
        SELECT SEQ_WSDEFINITION_ID.nextval AS ID FROM DUAL
        </selectKey>
        -->
        INSERT INTO class_group_relation (id_,class_group_id_,sub_class_group_id_,create_time_)
        VALUES(#{id},#{classGroupId},#{subClassGroupId},now())
    </insert>

    <!-- 根据主键查询一条记录 -->
    <update id="update" parameterType="com.ym.mec.biz.dal.entity.ClassGroupRelation">
        UPDATE class_group_relation
        <set>
            <if test="subClassGroupId != null">
                sub_class_group_id_ = #{subClassGroupId},
            </if>
            <if test="classGroupId != null">
                class_group_id_ = #{classGroupId},
            </if>
        </set>
        WHERE id_ = #{id}
    </update>

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

    <!-- 分页查询 -->
    <select id="queryPage" resultMap="ClassGroupRelation" parameterType="map">
        SELECT * FROM class_group_relation 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_relation
    </select>

    <!-- 班级关系批量插入 -->
    <insert id="classGroupRelationsInsert" parameterType="java.util.List">
        INSERT INTO class_group_relation (class_group_id_,sub_class_group_id_,create_time_) VALUES
        <foreach collection="classGroupRelationList" item="item" index="index" separator=",">
            (#{item.classGroupId},#{item.subClassGroupId},now())
        </foreach>
    </insert>
</mapper>
