From f93d002c2809065d227ffd8010bc29dd579b171f Mon Sep 17 00:00:00 2001
From: RUNZE LU <36724300+lurunze1226@users.noreply.github.com>
Date: Wed, 17 Aug 2022 17:05:31 +0800
Subject: [PATCH] =?UTF-8?q?fix:=20Form=E5=BC=80=E5=90=AFtrimValues?=
 =?UTF-8?q?=E6=97=B6=E4=BC=9A=E5=B0=86File=E5=AD=97=E6=AE=B5=E9=94=99?=
 =?UTF-8?q?=E8=AF=AF=E8=BD=AC=E6=8D=A2=E9=97=AE=E9=A2=98=20(#5162)?=
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---
 packages/amis-core/src/utils/helper.ts | 24 +++++++++++++++++++++++-
 1 file changed, 23 insertions(+), 1 deletion(-)

diff --git a/packages/amis-core/src/utils/helper.ts b/packages/amis-core/src/utils/helper.ts
index ad18af94a..a42069cd4 100644
--- a/packages/amis-core/src/utils/helper.ts
+++ b/packages/amis-core/src/utils/helper.ts
@@ -1350,10 +1350,32 @@ export function chainEvents(props: any, schema: any) {
   return ret;
 }
 
-export function mapObject(value: any, fn: Function): any {
+export function mapObject(
+  value: any,
+  fn: Function,
+  skipFn?: (value: any) => boolean
+): any {
+  // 如果value值满足skipFn条件则不做map操作
+  skipFn =
+    skipFn && typeof skipFn === 'function'
+      ? skipFn
+      : (value: any): boolean => {
+          // File类型处理之后会变成plain object
+          if (value instanceof File) {
+            return true;
+          }
+
+          return false;
+        };
+
+  if (!!skipFn(value)) {
+    return value;
+  }
+
   if (Array.isArray(value)) {
     return value.map(item => mapObject(item, fn));
   }
+
   if (isObject(value)) {
     let tmpValue = {...value};
     Object.keys(tmpValue).forEach(key => {