From 9dd7b4e146d55099b995252fbc1ed46a3f48fb9e Mon Sep 17 00:00:00 2001
From: Cxx0822 <1556464090@qq.com>
Date: Wed, 23 Jul 2025 19:33:55 +0800
Subject: [PATCH] =?UTF-8?q?fix:=E4=BF=AE=E5=A4=8D=E6=9F=A5=E8=AF=A2?=
 =?UTF-8?q?=E4=B8=BAnull=E7=9A=84=E9=97=AE=E9=A2=98?=
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---
 src/main/resources/mapper/MomentMapper.xml | 24 +++++++++++-----------
 1 file changed, 12 insertions(+), 12 deletions(-)

diff --git a/src/main/resources/mapper/MomentMapper.xml b/src/main/resources/mapper/MomentMapper.xml
index 30e7c15..c3e9505 100644
--- a/src/main/resources/mapper/MomentMapper.xml
+++ b/src/main/resources/mapper/MomentMapper.xml
@@ -33,11 +33,11 @@
     </select>
 
     <select id="queryMomentComment" resultMap="commentResultMap">
-        SELECT a.id          AS id,
-               b.username    AS username,
-               b.avatar      AS avatar,
-               a.content     AS content,
-               a.create_time AS date
+        SELECT a.id                   AS id,
+               b.username             AS username,
+               COALESCE(b.avatar, '') AS avatar,
+               a.content              AS content,
+               a.create_time          AS date
         FROM comment_record AS a
                  LEFT JOIN user AS b ON a.create_by = b.id
         WHERE subject_id = #{id}
@@ -45,12 +45,12 @@
     </select>
 
     <select id="queryMomentList" resultMap="momentResultMap">
-        SELECT a.id          AS id,
-               b.id          AS userId,
-               b.username    AS username,
-               b.avatar      AS avatar,
-               a.content     AS content,
-               a.create_time AS date
+        SELECT a.id                   AS id,
+               b.id                   AS userId,
+               b.username             AS username,
+               COALESCE(b.avatar, '') AS avatar,
+               a.content              AS content,
+               a.create_time          AS date
         FROM moment AS a
                  LEFT JOIN user AS b ON a.create_by = b.id
         ORDER BY a.create_time DESC
@@ -60,7 +60,7 @@
         SELECT a.id          AS id,
                b.id          AS userId,
                b.username    AS username,
-               b.avatar      AS avatar,
+               COALESCE(b.avatar, '')      AS avatar,
                a.content     AS content,
                a.create_time AS date
         FROM moment AS a