From b661bcf7e065092c876e052bad0bfaecb9dc0c17 Mon Sep 17 00:00:00 2001
From: luohairen <3399054449@qq.com>
Date: 星期二, 12 十一月 2024 21:21:06 +0800
Subject: [PATCH] 优化错题查询
---
src/main/resources/mapper/ClassesUserMapper.xml | 24 ++++++++++++++++++------
1 files changed, 18 insertions(+), 6 deletions(-)
diff --git a/src/main/resources/mapper/ClassesUserMapper.xml b/src/main/resources/mapper/ClassesUserMapper.xml
index 10be910..5f713e9 100644
--- a/src/main/resources/mapper/ClassesUserMapper.xml
+++ b/src/main/resources/mapper/ClassesUserMapper.xml
@@ -53,11 +53,12 @@
TU.birth_day,
TU.status
FROM t_classes_user TCU
- LEFT JOIN t_user TU ON TU.id = TCU.user_id and TU.deleted = 0
- WHERE TCU.deleted = 0 AND TCU.classes_id = #{query.classesId} AND TCU.teacher = 0
- <if test="query.studentName != null and query.studentName != ''">AND TU.real_name like concat('%',
- #{query.studentName}, '%')
- </if>
+ INNER JOIN t_user TU ON TU.id = TCU.user_id and TU.deleted = 0 AND TCU.classes_id = #{query.classesId} AND TCU.deleted = 0 AND TCU.teacher = 0
+ <where>
+ <if test="query.studentName != null and query.studentName != ''">AND TU.real_name like concat('%',
+ #{query.studentName}, '%')
+ </if>
+ </where>
order by TU.id desc
</select>
@@ -83,7 +84,7 @@
<select id="getClassesByUserId1" resultType="com.ycl.jxkg.domain.vo.ClassesVO">
select distinct tc.id, tc.class_name
from t_classes_user tcu inner join t_classes tc ON tcu.classes_id = tc.id
- and tcu.user_id = #{userId} and tcu.teacher = 0
+ and tcu.user_id = #{userId} and tcu.teacher = 0 and tcu.deleted = 0
</select>
<select id="getClassesNameByUserId" resultType="java.lang.String">
@@ -99,4 +100,15 @@
FROM t_user tu
INNER JOIN t_classes_user tcu ON tu.id = tcu.user_id AND tcu.classes_id = #{id} AND tcu.deleted = 0 AND tcu.teacher = 1 AND tu.deleted = 0
</select>
+
+ <select id="getTeachersByClassesIds" resultType="string">
+ SELECT
+ DISTINCT tu.real_name
+ FROM t_user tu
+ INNER JOIN t_classes_user tcu ON tu.id = tcu.user_id AND tcu.deleted = 0 AND tcu.teacher = 1 AND tu.deleted = 0
+ WHERE
+ tcu.classes_id in <foreach collection="classesIds" open="(" separator="," close=")" item="classesId">
+ #{classesId}
+ </foreach>
+ </select>
</mapper>
--
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