[英]How to serialize in Django Rest Framework with custom fields?
Let's say my model is: 假设我的模型是:
class Contact(models.Model):
email = models.CharField(max_length=50)
I want to have a serializer that receives multiple fields and then combine them to create an email. 我希望有一个接收多个字段的序列化器,然后将它们组合以创建电子邮件。 For example:
例如:
class ContactSerializer(serializers.Serializer):
first = serializers.CharField()
second = serializers.CharField()
third = serializers.CharField()
It would convert {"first": "user", "second": "example", "third": "org"} to a new Contact object with the email 'user@example.org'. 它将使用电子邮件“ user@example.org”将{“ first”:“ user”,“ second”:“ example”,“ third”:“ org”}转换为新的Contact对象。
What should I do? 我该怎么办?
You can override serializer's create
method: 您可以覆盖序列化程序的
create
方法:
class ContactSerializer(serializers.Serializer):
first = serializers.CharField()
second = serializers.CharField()
third = serializers.CharField()
def create(self, validated_data):
email = '{0}@{1}.{2}'.format(validated_data['first'], validated_data['second'], validated_data['third'])
instance = Contact.objects.create(email=email)
return instance
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