From 29b4b0592230e81d2c6933279848d4333787c60d Mon Sep 17 00:00:00 2001
From: zengh <123456>
Date: Thu, 29 Jul 2021 11:27:18 +0800
Subject: [PATCH] 排序问题修复

---
 src/main/java/org/springblade/modules/exam/mapper/ExamPaperMapper.xml |   41 +++++++++++++++++++++++++++++++++++------
 1 files changed, 35 insertions(+), 6 deletions(-)

diff --git a/src/main/java/org/springblade/modules/exam/mapper/ExamPaperMapper.xml b/src/main/java/org/springblade/modules/exam/mapper/ExamPaperMapper.xml
index 614c318..afb4988 100644
--- a/src/main/java/org/springblade/modules/exam/mapper/ExamPaperMapper.xml
+++ b/src/main/java/org/springblade/modules/exam/mapper/ExamPaperMapper.xml
@@ -5,9 +5,11 @@
     <resultMap id="PagerSubject" type="org.springblade.modules.exam.vo.ExamPaperSubjectVO"
                autoMapping="true">
         <id property="id" column="id"/>
-        <collection property="examExaminationSubjects" javaType="java.util.List" ofType="org.springblade.modules.exam.entity.ExamExaminationSubject" autoMapping="true">
+        <collection property="examExaminationSubjects" javaType="java.util.List"
+                    ofType="org.springblade.modules.exam.entity.ExamExaminationSubject" autoMapping="true">
             <id property="id" column="tid"/>
-            <association property="examSubjectChoices" javaType="org.springblade.modules.exam.entity.ExamSubjectChoices" resultMap="brakesResult" autoMapping="true">
+            <association property="examSubjectChoices" javaType="org.springblade.modules.exam.entity.ExamSubjectChoices"
+                         resultMap="brakesResult" autoMapping="true">
             </association>
         </collection>
     </resultMap>
@@ -15,9 +17,11 @@
     <resultMap id="PagerSubjectAnswer" type="org.springblade.modules.exam.vo.ExamPaperSubjectVO"
                autoMapping="true">
         <id property="id" column="id"/>
-        <collection property="examExaminationSubjects" javaType="java.util.List" ofType="org.springblade.modules.exam.entity.ExamExaminationSubject" autoMapping="true">
+        <collection property="examExaminationSubjects" javaType="java.util.List"
+                    ofType="org.springblade.modules.exam.entity.ExamExaminationSubject" autoMapping="true">
             <id property="id" column="tid"/>
-            <association property="examSubjectChoices" javaType="org.springblade.modules.exam.entity.ExamSubjectChoices" autoMapping="true">
+            <association property="examSubjectChoices" javaType="org.springblade.modules.exam.entity.ExamSubjectChoices"
+                         autoMapping="true">
                 <id property="id" column="sid"/>
             </association>
         </collection>
@@ -29,6 +33,24 @@
         <id property="subjectName" column="subject_name"/>
         <id property="choicesType" column="choices_type"/>
         <id property="score" column="score"/>
+        <id property="analysis" column="analysis"/>
+        <id property="level" column="level"/>
+        <id property="creator" column="creator"/>
+        <id property="createDate" column="create_date"/>
+        <id property="modifier" column="modifier"/>
+        <id property="modifyDate" column="modify_date"/>
+        <id property="delFlag" column="del_flag"/>
+        <id property="applicationCode" column="application_code"/>
+        <id property="tenantCode" column="tenant_code"/>
+    </resultMap>
+
+    <resultMap id="RandomResult" type="org.springblade.modules.exam.vo.ExamSubjectChoicesVO">
+        <id property="id" column="id"/>
+        <id property="categoryId" column="category_id"/>
+        <id property="subjectName" column="subject_name"/>
+        <id property="choicesType" column="choices_type"/>
+        <id property="score" column="score"/>
+        <id property="answer" column=""/>
         <id property="analysis" column="analysis"/>
         <id property="level" column="level"/>
         <id property="creator" column="creator"/>
@@ -52,8 +74,15 @@
         WHERE
         1 = 1
         <if test="paper.id !=null">
-        and sj.id = #{paper.id}
+            and sj.id = #{paper.id}
         </if>
+    </select>
+
+    <select id="queryRandomSubject" resultMap="RandomResult" >
+        SELECT * FROM ( SELECT * FROM exam_subject_choices WHERE choices_type = 0 ORDER BY RAND( ) LIMIT 50 ) a UNION ALL
+        SELECT * FROM ( SELECT * FROM exam_subject_choices WHERE choices_type = 1 ORDER BY RAND( ) LIMIT 20 ) b UNION ALL
+        SELECT * FROM ( SELECT * FROM exam_subject_choices WHERE choices_type = 2 ORDER BY RAND( ) LIMIT 20 ) c UNION ALL
+        SELECT * FROM ( SELECT * FROM exam_subject_choices WHERE choices_type = 3 ORDER BY RAND( ) LIMIT 5 ) d
     </select>
 
     <select id="selectExamPaperPage" resultType="org.springblade.modules.exam.vo.ExamPaperVO">
@@ -81,7 +110,7 @@
         WHERE
         1 = 1
         <if test="paper.id !=null">
-        and sj.id = #{paper.id}
+            and sj.id = #{paper.id}
         </if>
     </select>
 

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