diff --git a/zhctproject/store/application/p/logic/SportExperience.php b/private/tmp/cdx-store-sport-archive-20261010/source/application/p/logic/SportExperience.php
index 6b593ba..1b3905d 100644
--- a/zhctproject/store/application/p/logic/SportExperience.php
+++ b/private/tmp/cdx-store-sport-archive-20261010/source/application/p/logic/SportExperience.php
@@ -29,7 +29,7 @@ class SportExperience
     public function add($params, $createBy) {
         try {
             $params['uuid'] = guid();
-            $params['create_by'] = $createBy;
+            $params['create_by'] = self::normalizeCreateBy($createBy, ltrim((string)\think\Config::get('database.type'), '\\') === \app\cores\database\Dm::class);
             $params['create_time'] = date("Y-m-d H:i:s");
             $res = $this->model->add($params);
             if(!$res) {
@@ -41,6 +41,12 @@ class SportExperience
         return ['code' => 0, 'message' => '新建成功', 'data' => []];
     }
 
+    /** Preserve this legacy VARCHAR(32) field's observed non-strict MySQL truncation. */
+    private static function normalizeCreateBy(string $value, bool $isDm): string
+    {
+        return $isDm ? mb_substr($value, 0, 32, 'UTF-8') : $value;
+    }
+
     /**
      * 电子档案--运动经历列表
      * @author 李鑫
@@ -112,4 +118,4 @@ class SportExperience
         }
         return ['code' => 0, 'message' => '删除成功', 'data' => []];
     }
-}
\ No newline at end of file
+}