pode ser utilizada como uma dependência do **FastAPI**.

Na realidade, o FastAPI utiliza esses dois decoradores internamente.

///

## Uma dependência de banco de dados com `yield` { #a-database-dependency-with-yield }

Por exemplo, você poderia utilizar isso para criar uma sessão do banco de dados, e fechá-la após terminar.

{* ../../docs_src/query_params_str_validations/tutorial015_an_py310.py hl[5,16:19,24] *}

/// info | Дополнительная информация

///

例如，以下自訂驗證器會檢查項目 ID 是否以 `isbn-` 開頭（<abbr title="International Standard Book Number - 國際標準書號">ISBN</abbr> 書籍編號），或以 `imdb-` 開頭（<abbr title="Internet Movie Database - 互聯網電影資料庫: 含有電影資訊的網站">IMDB</abbr> 電影 URL 的 ID）：

{* ../../docs_src/query_params_str_validations/tutorial015_an_py310.py hl[5,16:19,24] *}

/// info | 說明

這需搭配 Pydantic 2 或以上版本。😎

///

///

Örneğin bu custom validator, bir item ID’sinin <abbr title="International Standard Book Number - Uluslararası Standart Kitap Numarası">ISBN</abbr> kitap numarası için `isbn-` ile veya <abbr title="Internet Movie Database - İnternet Film Veritabanı: filmler hakkında bilgi içeren bir web sitesi">IMDB</abbr> film URL ID’si için `imdb-` ile başladığını kontrol eder:

{* ../../docs_src/query_params_str_validations/tutorial015_an_py310.py hl[5,16:19,24] *}

package tests_test

import (
	"context"
	"database/sql"
	"fmt"
	"math/rand"
	"reflect"
	"strconv"
	"strings"
	"testing"
	"time"

	"github.com/stretchr/testify/assert"
	"gorm.io/driver/gaussdb"
	"gorm.io/driver/postgres"

	"gorm.io/gorm"
	"gorm.io/gorm/clause"
	"gorm.io/gorm/migrator"
	"gorm.io/gorm/schema"
	"gorm.io/gorm/utils"
	. "gorm.io/gorm/utils/tests"
)

func TestMigrate(t *testing.T) {

	}

	if age != 10 {
		t.Errorf("Scan with Row, age expects: %v, got %v", user2.Age, age)
	}

	table := "gorm.users"
	if DB.Dialector.Name() != "mysql" || isTiDB() {
		table = "users" // other databases doesn't support select with `database.table`
	}

	DB.Table(table).Where(map[string]interface{}{"name": user2.Name}).Update("age", 20)

	row = DB.Table(table+" as u").Where("u.name = ?", user2.Name).Select("age").Row()

{* ../../docs_src/query_params_str_validations/tutorial015_an_py310.py hl[5,16:19,24] *}

/// info | Info

{* ../../docs_src/query_params_str_validations/tutorial015_an_py310.py hl[5,16:19,24] *}

/// info | Informação

{* ../../docs_src/query_params_str_validations/tutorial015_an_py310.py hl[5,16:19,24] *}

/// info | Información

{* ../../docs_src/query_params_str_validations/tutorial015_an_py310.py hl[5,16:19,24] *}

/// info