}
	}

	DB.Model(&products).Update("Name", "product-name")

	// will set all product's price to last product's price + 10
	for idx, value := range []int64{410, 410, 410} {
		if products[idx].Price != value {
			t.Errorf("invalid price for product #%v, expects: %v, got %v", idx, value, products[idx].Price)
		}
	}

	products2 := []Product3{
		{Name: "Product-1", Price: 100},

    {!> ../../../docs_src/body_nested_models/tutorial005_py310.py!}
    ```

=== "Python 3.9+"

    ```Python hl_lines="4  10"
    {!> ../../../docs_src/body_nested_models/tutorial005_py39.py!}
    ```

=== "Python 3.8+"

    ```Python hl_lines="4  10"
    {!> ../../../docs_src/body_nested_models/tutorial005.py!}
    ```

    {!> ../../../docs_src/body_nested_models/tutorial005_py310.py!}
    ```

=== "Python 3.9+"

    ```Python hl_lines="4  10"
    {!> ../../../docs_src/body_nested_models/tutorial005_py39.py!}
    ```

=== "Python 3.8+"

    ```Python hl_lines="4  10"
    {!> ../../../docs_src/body_nested_models/tutorial005.py!}
    ```

                </mxCell>
                <mxCell id="6" value="" style="rounded=0;whiteSpace=wrap;html=1;fontStyle=1;strokeWidth=4;fillColor=#dae8fc;strokeColor=#6c8ebf;" parent="1" vertex="1">
                    <mxGeometry x="1110" y="410" width="190" height="500" as="geometry"/>
                </mxCell>

=== "Python 3.10+"

    ```Python hl_lines="2  8-11"
    {!> ../../../docs_src/schema_extra_example/tutorial002_py310.py!}
    ```

=== "Python 3.8+"

    ```Python hl_lines="4  10-13"
    {!> ../../../docs_src/schema_extra_example/tutorial002.py!}
    ```

!!! warning
    请记住，传递的那些额外参数不会添加任何验证，只会添加注释，用于文档的目的。

## `Body` 额外参数

你可以通过传递额外信息给 `Field` 同样的方式操作`Path`, `Query`, `Body`等。

    {!> ../../../docs_src/body_nested_models/tutorial005_py310.py!}
    ```

=== "Python 3.9+"

    ```Python hl_lines="4  10"
    {!> ../../../docs_src/body_nested_models/tutorial005_py39.py!}
    ```

=== "Python 3.8+"

    ```Python hl_lines="4  10"
    {!> ../../../docs_src/body_nested_models/tutorial005.py!}
    ```

Por exemplo, no modelo `Image` nós temos um campo `url`, nós podemos declara-lo como um `HttpUrl` do Pydantic invés de como uma `str`:

```Python hl_lines="4  10"
{!../../../docs_src/body_nested_models/tutorial005.py!}
```

A string será verificada para se tornar uma URL válida e documentada no esquema JSON/1OpenAPI como tal.

## Atributos como listas de submodelos

                </mxCell>
                <mxCell id="4" value="" style="rounded=0;whiteSpace=wrap;html=1;fontStyle=1;strokeWidth=4;" parent="1" vertex="1">
                    <mxGeometry x="540" y="430" width="440" height="410" as="geometry"/>
                </mxCell>

    {!> ../../../docs_src/body_nested_models/tutorial005_py310.py!}
    ```

=== "Python 3.9+"

    ```Python hl_lines="4  10"
    {!> ../../../docs_src/body_nested_models/tutorial005_py39.py!}
    ```

=== "Python 3.8+"

    ```Python hl_lines="4  10"
    {!> ../../../docs_src/body_nested_models/tutorial005.py!}
    ```

该字符串将被检查是否为有效的 URL，并在 JSON Schema / OpenAPI 文档中进行记录。

예를 들어 `Image` 모델 안에 `url` 필드를 `str` 대신 Pydantic의 `HttpUrl`로 선언할 수 있습니다:

```Python hl_lines="4  10"
{!../../../docs_src/body_nested_models/tutorial005.py!}
```

이 문자열이 유효한 URL인지 검사하고 JSON 스키마/OpenAPI로 문서화 됩니다.

## 서브모델 리스트를 갖는 어트리뷰트

`list`, `set` 등의 서브타입으로 Pydantic 모델을 사용할 수도 있습니다: