ClassesDictMapper.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.ClassesDictMapper">
<!-- 通用查询映射结果 -->
<resultMap id="BaseResultMap" type="com.meishu.model.ClassesDictDO">
<id column="id" property="id" />
<result column="create_date" property="createDate" />
<result column="update_date" property="updateDate" />
<result column="school" property="school" />
<result column="grade" property="grade" />
<result column="classes" property="classes" />
<result column="session" property="session" />
<result column="subject_type" property="subjectType" />
<result column="class_name" property="className" />
<result column="semester" property="semester" />
<result column="status" property="status" />
</resultMap>
<!-- 通用查询结果列 -->
<sql id="Base_Column_List">
create_date,
update_date,
id, school, grade, classes, session, subject_type, class_name, semester, status
</sql>
<select id="getClasses" resultType="com.meishu.vo.classes.GetClassesVO">
SELECT
t.id,
t.class_name,
t.grade,
t3.cnt,
t.`session`,
t.`status`,
t.classes,
t.upgrade_date
FROM
classes_dict t
LEFT JOIN ( SELECT t2.classes_id, count( 1 ) AS cnt FROM classes_user_mapping t2 where t2.delete_date is null GROUP BY t2.classes_id ) t3 ON t.id = t3.classes_id
-- left join classes_dict t4 on t.class_dict_id = t4.id
WHERE
1=1
<if test="session != null and session !=''">
and t.SESSION = #{session}
</if>
<if test="className != null and className != ''">
and t.class_name like concat('%',#{className} ,'%')
</if>
<if test="grade != null and grade != ''">
and t.grade = #{grade}
</if>
<if test="status != null and status != ''">
and t.status = #{status}
</if>
order by t.grade_order,t.classes*1
</select>
<select id="getClassStudents" resultType="com.meishu.vo.classes.GetClassStudentsVO">
SELECT
t.id,
t2.id as userId,
t2.user_name,
t2.study_code,
t2.phone,
t3.grade,
t2.`session`,
t2.id_card,
t2.gender,
t2.email,
t2.user_status
FROM
classes_user_mapping t
LEFT JOIN user_role t2 ON t.user_id = t2.id
LEFT JOIN classes_dict t3 ON t.classes_id = t3.id
where t.classes_id = #{classId}
and t.delete_date is null
<if test="userName != null and userName != ''">
and user_name like concat('%',#{userName} ,'%')
</if>
</select>
<select id="queryNoClassStudents" resultType="com.meishu.model.UserRoleDO">
SELECT
*,
t.id as userId
FROM
user_role t
WHERE
t.id NOT IN (
SELECT
user_id
FROM
classes_user_mapping where delete_date is null)
<if test="userName != null and userName != ''">
and user_name like concat('%',#{userName} ,'%')
</if>
and t.delete_date is null
</select>
<select id="getClassesById" resultType="com.meishu.model.ClassesDictDO">
select
c.*
from classes_dict c
left join classes_user_mapping cum on cum.classes_id = c.id
where cum.user_id = #{studentId}
and c.delete_date is null
and cum.delete_date is null
</select>
<select id="getGradeClasses" parameterType="com.meishu.model.ClassesDictDO" resultType="com.meishu.model.ClassesDictDO">
SELECT
*
FROM
classes_dict t
WHERE
t.grade = #{grade}
AND t.STATUS = '在读'
and t.delete_date is null
order by t.classes*1
</select>
</mapper>