因此,我在 django 中使用序列化器,并想在响应中更改字段名称,当我意识到我的更改没有被计算在内时,我做了一些挖掘,发现我的 validated_data 与我的数据不同。
我的目标是将 python 对象提供给序列化程序,该序列化程序的字段与我要返回的名称不同,因此我在我的字段中使用了“source=”参数。
请注意,更改 python 对象字段的名称不是一个选项。
这是 python 对象:
class Flow(object):
"""Just a regular python object"""
def __init__(self, name=None, flow_uid=None, data_type=None, parent=None, container=None):
"""This has more fields than the serializer is waiting"""
self._parent = None
self._container = None
self.name = name
self.data_type = data_type
self.flow_uid = flow_uid
以及以下序列化器(我使用的是嵌套表示)
serializers.py
from rest_framework.fields import CharField, IntegerField, ListField, JSONField
from rest_framework.serializers import Serializer
class OutputSerializer(Serializer):
uid = CharField(max_length=36)
name = CharField(max_length=100)
description = CharField(max_length=100)
class FlowSerializer(Serializer):
uid = CharField(source='flow_uid', max_length=36) # I want 'uid' in my response not 'flow_uid'
name = CharField(max_length=100)
data_type = CharField(max_length=100)
class Meta:
fields = '___all___'
def to_representation(self, instance):
instance = super(FlowSerializer, self).to_representation(instance)
#Here instance = OrderedDict([('uid', 'uid_value'), ('name', 'name_value'), ('data_type', 'data_value')])
return instance
class FlowOutputSerializer(OutputSerializer):
columns = FlowSerializer(many=True)
viewsets.py
class AddTransformationViewSet(ViewSet):
"""Handle available "actions" for BrickModel operations"""
def list(self, request, parent_lookup_analyses: str):
"""The method I call for this test"""
flow1 = Flow(name="name1", flow_uid='flow_uid_value1', data_type='str')
flow2 = Flow(name="name2", flow_uid='flow_uid_value2', data_type='str')
flow1_ser = FlowSerializer(flow1)
flow2_ser = FlowSerializer(flow2)
LEATH
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