}

func TestPolymorphicHasOneAssociationForSlice(t *testing.T) {
	pets := []Pet{
		{Name: "hasone-1", Toy: Toy{Name: "toy-has-one"}},
		{Name: "hasone-2", Toy: Toy{}},
		{Name: "hasone-3", Toy: Toy{Name: "toy-has-one"}},
	}

	DB.Create(&pets)

	// Count
	AssertAssociationCount(t, pets, "Toy", 2, "")

	// Find
	var toys []Toy

## Parámetros opcionales { #optional-parameters }

De la misma manera, puedes declarar parámetros de query opcionales, estableciendo su valor por defecto en `None`:

{* ../../docs_src/query_params/tutorial002_py310.py hl[7] *}

En este caso, el parámetro de función `q` será opcional y será `None` por defecto.

/// check | Revisa

## Parâmetros opcionais { #optional-parameters }

Da mesma forma, você pode declarar parâmetros de consulta opcionais, definindo o valor padrão para `None`:

{* ../../docs_src/query_params/tutorial002_py310.py hl[7] *}

Nesse caso, o parâmetro da função `q` será opcional, e `None` será o padrão.

/// check | Verifique

OpenAPI şemasını tamamen kapatmak isterseniz `openapi_url=None` ayarlayabilirsiniz; bu, onu kullanan dokümantasyon arayüzlerini de devre dışı bırakır.

## Doküman URL'leri { #docs-urls }

Dahil gelen iki dokümantasyon arayüzünü yapılandırabilirsiniz:

* **Swagger UI**: `/docs` adresinden sunulur.
    * URL'sini `docs_url` parametresiyle ayarlayabilirsiniz.
    * `docs_url=None` ayarlayarak devre dışı bırakabilirsiniz.

	if hamsterToy.Name != hamster.PreferredToy.Name {
		t.Errorf("Should find has one polymorphic association")
	}

	hamsterToy = Toy{}
	DB.Model(&hamster).Association("OtherToy").Find(&hamsterToy)
	if hamsterToy.Name != hamster.OtherToy.Name {
		t.Errorf("Should find has one polymorphic association")
	}

	// Append
	DB.Model(&hamster).Association("PreferredToy").Append(&Toy{
		Name: "bike 2",

    assertTrue("Expected another permutation, but there was none.", permutations.hasNext());
    assertEquals(expectedPermutation, permutations.next());
  }

  private <T> void assertNoMorePermutations(Iterator<List<T>> permutations) {
    assertFalse("Expected no more permutations, but there was one.", permutations.hasNext());
    try {
      permutations.next();

// corresponding error value. NB When there is more than one error value that
// occurs maximum number of times, the error value returned depends on how
// golang's map orders keys. This doesn't affect correctness as long as quorum
// value is greater than or equal to simple majority, since none of the equally
// maximal values would occur quorum or more number of times.

    public Configuration getForbiddenAPIsConfiguration() {
        return getProject().getConfigurations().getByName("forbiddenApisCliJar");
    }

    @InputFile
    @PathSensitive(PathSensitivity.NONE)
    public File getSignatureFile() {
        return signatureFile;
    }

    public void setSignatureFile(File signatureFile) {
        this.signatureFile = signatureFile;
    }

    @Input

```
http://127.0.0.1:8000/items/?skip=20
```

查询参数的值就是：

* `skip=20`：在 URL 中设定的值
* `limit=10`：使用默认值

## 可选参数 { #optional-parameters }

同理，把默认值设为 `None` 即可声明可选的查询参数：

{* ../../docs_src/query_params/tutorial002_py310.py hl[7] *}

本例中，查询参数 `q` 是可选的，默认值为 `None`。

/// check | 检查

注意，**FastAPI** 可以识别出 `item_id` 是路径参数，`q` 不是路径参数，而是查询参数。

///

## 查询参数类型转换 { #query-parameter-type-conversion }

    )
    assert response.status_code == 200
    assert response.json() == {
        "item_id": 123,
        "name": "Foo",
        "price": 50.1,
        "description": None,
        "tax": None,
    }


def test_put_with_no_data(client: TestClient):
    response = client.put("/items/123", json={})
    assert response.status_code == 422
    assert response.json() == {
        "detail": [