python - Django RF 错误详细信息 : This field is required with APIClient

Question

我正在尝试使用来自发布请求的序列化程序创建对象，但在尝试将对象列表传递给嵌套序列化程序时出现错误。在以 JSON 格式传递 ('id', 'name', 'description') 数据时，bars 列表没有得到正确解析并返回以下错误:

{'bars' : [ErrorDetail(string='This field is required.', code='required')]}}

那些是序列化程序:

class BarsSerializer(serializers.ModelSerializer):
    
    class Meta:
        model = Bar
        fields = ('name', 'foo')


class FooSerializer(serializers.ModelSerializer):

    bars = BarsSerializer(many=True)
    
    class Meta:
        model = Foo
        fields = ('id', 'author' 'name', 'description', 'bars')

    def create(self, validated_data):
        validated_data['author'] = self.context['request'].user
        # Foo object manager is tested and works
        return Foo.objects.create(**validated_data)

这是我的请求负载:

{
    'name': "A Foo",
    'description': "A happy foo running in the woods of Central Park",
    'bars':  [
        {name : 'a'},
        {name : 'b'},
        {name : 'c'},
    ]
}

这些是模型

class Bar(models.Model):
    
    name = models.CharField(
        max_length=255,
        default=""
    )


    foo = models.ForeignKey(
        Foo,
        related_name='foos',
        on_delete=models.CASCADE
    )

class Foo(models.Model):
    
    name = models.CharField(
            max_length=255
        )

    description = models.CharField(
            max_length=1023,
            default=""
        )

    author = models.ForeignKey(CommonUser, on_delete=models.SET_NULL, null=True)

更新

问题仅在使用 Django python manage.py test 进行测试时出现，而在使用本地服务器使用 postman 测试请求时则不存在

data = {
    "name": "A Foo",
    "description": "A happy foo running in the woods of Central Park",
    "bars":  [
        {name : "a"},
        {name : "b"},
        {name : "c"},
    ]
}

res = self.client_one.post(reverse('foo-list'), data)

注意 Foo 和 Bar 都是我真实模型的简化模型，以减少给定问题的信息量

Answer 1

在使用 APIClient rest_framework.test.APIClient 测试模型并使用更复杂的数据和嵌套序列化程序发出 post 请求时，格式必须明确设置为 json因此

def test_a_feature(self):
    self.client = APIClient()

    payload = {
        "name": "A Foo",
        "description": "A happy foo running in the woods of Central Park",
        "bars":  [
            {name : "a"},
            {name : "b"},
            {name : "c"},
        ]
    }

    self.client.post(reverse('foo-list'), payload, format='json')