将具有多部分/表单数据的HTML/axios对象列表发布到DRF多部分解析器 [英] Post LIST OF OBJECTS from HTML/axios with multipart/form-data to DRF multipart parser

问题描述

这是我的序列化器:

class ParentSerializer(serializers.ModelSerializer):
    children = ChildSerializer(many=True)  # reverse FK relation

ParentSerializer 还有一个图像字段，因此请求必须是多部分/表单数据，才能在单个请求中同时支持图像和数据.

ParentSerializer also has an image field, so the request has to be multipart/form-data to support both image and data in a single request.

以下代码/测试工作正常:

The following code/test works fine:

test_data = QueryDict('', mutable=True)
dictionary = {
    'name': ['test'],
    'children[0]': [{'key1': 'val1', 'key2': 'val2'}]
}
test_data.update(MultiValueDict(dictionary))

test_serializer = self.get_serializer(data=test_data)
test_serializer.is_valid(raise_exception=True)
test_instance = test_serializer.save()

...因为我是手动创建 children 列表.

...because I'm manually creating the children list.

问题是我无法通过axios/HTML表单执行相同的操作.正在发送的数据将转换为字符串.

The problem is I'm not able to do the same through axios/HTML form. The data being sent is converted to string.

我有什么选择?我想发送子对象列表以及其他数据.

What are my options? I want to send list of child objects along with other data.

DRF v3.9 & Django v2.2 .

推荐答案

您的字段必须以以下格式命名: children [0] key1 ， children [0] key2 ， children [1] key1 ， children [1] key2

Your fields must be named in the following form children[0]key1, children[0]key2, children[1]key1, children[1]key2

请注意，在] 和键名之间没有点..

Note that there is no dot . between the ] and the key name

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