From b04d728249e1dbc6ce5ab1beb33835a92583feeb Mon Sep 17 00:00:00 2001
From: JyQAQ <45193678+jyqwq@users.noreply.github.com>
Date: Tue, 28 Jul 2026 15:50:15 +0800
Subject: [PATCH] =?UTF-8?q?fix(@vben-core/form-ui):=20=E5=85=BC=E5=AE=B9?=
 =?UTF-8?q?=20zod=20v4=20=E7=9A=84=20ZodArray=EF=BC=8C=E9=81=BF=E5=85=8D?=
 =?UTF-8?q?=E8=AF=AF=E7=94=A8=20unwrap()=20=E4=B8=A2=E5=A4=B1=E6=95=B0?=
 =?UTF-8?q?=E7=BB=84=E5=A4=96=E5=A3=B3=E5=AF=BC=E8=87=B4=E6=95=B0=E7=BB=84?=
 =?UTF-8?q?=E6=A0=A1=E9=AA=8C=E5=A4=B1=E8=B4=A5=20(#8207)?=
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---
 packages/@core/ui-kit/form-ui/src/form-render/helper.ts | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/packages/@core/ui-kit/form-ui/src/form-render/helper.ts b/packages/@core/ui-kit/form-ui/src/form-render/helper.ts
index bf904f78..926f09ea 100644
--- a/packages/@core/ui-kit/form-ui/src/form-render/helper.ts
+++ b/packages/@core/ui-kit/form-ui/src/form-render/helper.ts
@@ -22,6 +22,15 @@ export function getBaseRules(schema?: null | string | ZodType): null | ZodType {
     return getBaseRules(rawSchema.in as ZodType);
   }
 
+  // In zod v4, ZodArray also has an unwrap() that returns its element type
+  // (not an outer wrapper). We must not unwrap it, otherwise z.array(T) loses
+  // its array shell and array values fail validation.
+  const defType = (rawSchema as unknown as { _zod?: { def: { type: string } } })
+    ._zod?.def?.type;
+  if (defType === 'array') {
+    return rawSchema;
+  }
+
   const unwrappedSchema = (rawSchema as UnwrappableZodType).unwrap?.();
   if (unwrappedSchema && unwrappedSchema !== rawSchema) {
     return getBaseRules(unwrappedSchema);