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