From 3f9698bb470a8a6b6499c79a5f98c9ba3cfafab4 Mon Sep 17 00:00:00 2001
From: Xyfacai <xyfacai@gmail.com>
Date: Wed, 10 Sep 2025 15:29:07 +0800
Subject: [PATCH] =?UTF-8?q?feat:=20dalle=20=E8=87=AA=E5=AE=9A=E4=B9=89?=
 =?UTF-8?q?=E5=AD=97=E6=AE=B5=E9=80=8F=E4=BC=A0?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 dto/openai_image.go | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/dto/openai_image.go b/dto/openai_image.go
index 9e838688e..bc888dc71 100644
--- a/dto/openai_image.go
+++ b/dto/openai_image.go
@@ -59,6 +59,29 @@ func (i *ImageRequest) UnmarshalJSON(data []byte) error {
 	return nil
 }
 
+// 序列化时需要重新把字段平铺
+func (r ImageRequest) MarshalJSON() ([]byte, error) {
+	// 将已定义字段转为 map
+	type Alias ImageRequest
+	alias := Alias(r)
+	base, err := json.Marshal(alias)
+	if err != nil {
+		return nil, err
+	}
+
+	var baseMap map[string]json.RawMessage
+	if err := json.Unmarshal(base, &baseMap); err != nil {
+		return nil, err
+	}
+
+	// 合并 ExtraFields
+	for k, v := range r.Extra {
+		baseMap[k] = v
+	}
+
+	return json.Marshal(baseMap)
+}
+
 func GetJSONFieldNames(t reflect.Type) map[string]struct{} {
 	fields := make(map[string]struct{})
 	for i := 0; i < t.NumField(); i++ {