# OpenAPI `models`

OpenAPI Pydantic models used to generate and validate the generated OpenAPI.

Sebastián Ramírez <******@****.***> 1766006759 -0800

	Active    bool
}

type Account struct {
	gorm.Model
	UserID sql.NullInt64
	Number string
}

type Pet struct {
	gorm.Model
	UserID *uint
	Name   string
	Toy    Toy `gorm:"polymorphic:Owner;"`
}

type Toy struct {
	gorm.Model
	Name      string
	OwnerID   string
	OwnerType string
}

type Tools struct {
	gorm.Model
	Name     string
	CustomID string
	Type     string
}

# Extra Models { #extra-models }

Continuing with the previous example, it will be common to have more than one related model.

This is especially the case for user models, because:

* The **input model** needs to be able to have a password.
* The **output model** should not have a password.
* The **database model** would probably need to have a hashed password.

/// danger

Sebastián Ramírez <******@****.***> 1766840096 -0800

$ pip install python-multipart
```

///

/// note | Hinweis

Dies wird seit FastAPI Version `0.113.0` unterstützt. 🤓

///

## Pydantic-Modelle für Formulare { #pydantic-models-for-forms }

Sie müssen nur ein **Pydantic-Modell** mit den Feldern deklarieren, die Sie als **Formularfelder** erhalten möchten, und dann den Parameter als `Form` deklarieren:

{* ../../docs_src/request_form_models/tutorial001_an_py39.py hl[9:11,15] *}

///

## Mehrere Modelle { #multiple-models }

Hier ist eine allgemeine Idee, wie die Modelle mit ihren Passwortfeldern aussehen könnten und an welchen Stellen sie verwendet werden:

{* ../../docs_src/extra_models/tutorial001_py310.py hl[7,9,14,20,22,27:28,31:33,38:39] *}

### Über `**user_in.model_dump()` { #about-user-in-model-dump }

#### Pydantics `.model_dump()` { #pydantics-model-dump }

# Дополнительные модели { #extra-models }

В продолжение прошлого примера будет уже обычным делом иметь несколько связанных между собой моделей.

Это особенно применимо в случае моделей пользователя, потому что:

* **Модель для ввода** должна иметь возможность содержать пароль.
* **Модель для вывода** не должна содержать пароль.
* **Модель для базы данных**, возможно, должна содержать хэшированный пароль.

/// danger | Внимание

# Cookie Parameter Models { #cookie-parameter-models }

If you have a group of **cookies** that are related, you can create a **Pydantic model** to declare them. 🍪

This would allow you to **re-use the model** in **multiple places** and also to declare validations and metadata for all the parameters at once. 😎

/// note

This is supported since FastAPI version `0.115.0`. 🤓

///

/// tip

# Modelos Adicionais { #extra-models }

Continuando com o exemplo anterior, será comum ter mais de um modelo relacionado.

Isso é especialmente o caso para modelos de usuários, porque:

* O **modelo de entrada** precisa ser capaz de ter uma senha.
* O **modelo de saída** não deve ter uma senha.
* O **modelo de banco de dados** provavelmente precisaria ter uma senha com hash.

/// danger | Cuidado