From 50063f9f9ecef9550fc85af1201471c9622263a0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E9=BB=84=E6=B5=B7?= <10402852@qq.com>
Date: Wed, 31 May 2023 12:43:38 +0800
Subject: [PATCH] 'commit'

---
 src/main/java/com/dsideal/FengHuang/Exam/Model/ExamModel.java | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/main/java/com/dsideal/FengHuang/Exam/Model/ExamModel.java b/src/main/java/com/dsideal/FengHuang/Exam/Model/ExamModel.java
index 13f1b14..6ebc20f 100644
--- a/src/main/java/com/dsideal/FengHuang/Exam/Model/ExamModel.java
+++ b/src/main/java/com/dsideal/FengHuang/Exam/Model/ExamModel.java
@@ -247,7 +247,8 @@ public class ExamModel {
      * 功能：查看自己答卷的整体情况,哪个题目答了，哪个题目没有答
      */
     public List<Record> getPersonAllInfo(String person_id) {
-        String sql = "select *,COALESCE(reply,'0') as flag from t_exam_record where person_id=? order by order_id";
+        //如果是空值，返回0，否则返回1
+        String sql = "select *,if(reply is null,0,1) as flag from t_exam_record where person_id=? order by order_id";
         return Db.find(sql, person_id);
     }