Python Django序列化程序未显示子模型字段
在另一个序列化程序(外键关系)中使用模型序列化程序时,我的序列化程序没有从子模型返回字段,这是一个问题。我不是在寻找解决办法,而是在寻找它不起作用的原因 models.pyPython Django序列化程序未显示子模型字段,python,django,django-rest-framework,Python,Django,Django Rest Framework,在另一个序列化程序(外键关系)中使用模型序列化程序时,我的序列化程序没有从子模型返回字段,这是一个问题。我不是在寻找解决办法,而是在寻找它不起作用的原因 models.py class LinkedinAccount(models.Model): id = models.AutoField(primary_key=True) name = models.CharField(max_length=100, blank=True) date_created = models.
class LinkedinAccount(models.Model):
id = models.AutoField(primary_key=True)
name = models.CharField(max_length=100, blank=True)
date_created = models.DateTimeField(auto_now_add=True)
is_prospect = models.BooleanField(default=False)
class LinkedinProspectAccount(LinkedinAccount):
title = models.CharField(max_length=255, blank=True)
company = models.CharField(max_length=100, blank=True)
country = models.CharField(max_length=255, blank=True)
city = models.CharField(max_length=255, blank=True)
序列化程序.py
class LinkedinAccountSerializer(serializers.ModelSerializer):
class Meta:
model = user_account.models.LinkedinAccount
fields = ('id', 'name')
read_only_fields = ('date_created',)
class LinkedinProspectAccountSerializer(serializers.ModelSerializer):
class Meta:
model = user_account.models.LinkedinProspectAccount
fields = ('title', 'company', 'country', 'city')
read_only_fields = ('date_created',)
class ConversationSerializer(serializers.ModelSerializer):
linkedin_account = user_account.serializers.LinkedinAccountSerializer()
last_message = MessageSerializer()
prospect = user_account.serializers.LinkedinProspectAccountSerializer()
class Meta:
model = conversation.models.Conversation
fields = ('id', 'linkedin_account', 'prospect', 'conversation_id', 'archived',
'last_message')
lookup_field = None
read_only_fields = ('created_at', 'updated_at',)
我使用generics.ListCreateAPIView从正常GET请求中得到的结果是:
[OrderedDict([('id',1),('linkedin_账户],OrderedDict([('id',1),
('name','Test LinkedIn account')),('prospect',OrderedDict()),
('conversation_id','100'),('archived',False),('last_message',
无)])]
prospect对象没有字段,如果我在序列化程序中添加基本模型字段,它们将返回,但仍然没有子模型字段。单独使用LinkedinProspectAccountSerializer时,它可以正常工作。目前,我将此作为一种解决方法:
def get_prospect(self, obj):
prospect = user_account.models.LinkedinProspectAccount.objects.get(id=obj.prospect.id)
serializer = user_account.serializers.LinkedinProspectAccountSerializer(prospect)
return serializer.data
我认为您需要向LinkedinProspectAccount添加ForeignKey,如下所示:因为您的两个关系没有连接,所以它没有显示嵌套的关系/值。请试一试@AshutoshKS我已经通过LinkedinProspectAccount模型继承LinkedinAccount将它们关联起来,外键关系将是多余的。