[英]How to serialize in Django Rest Framework with custom fields?
假设我的模型是:
class Contact(models.Model):
email = models.CharField(max_length=50)
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。 例如:
class ContactSerializer(serializers.Serializer):
first = serializers.CharField()
second = serializers.CharField()
third = serializers.CharField()
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。
我该怎么办?
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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