Question

有没有办法从模型两个字段创建序列化器而不是模型可写字段？这是我的序列化器

using System.Globalization;

// ...

yourDate.ToString(new CultureInfo("es-ES")); // Convert the date to a normal date string with Spain's Spanish culture

我想将firts_name和last_name连接到全名

Answer 1

您可以将serializers.CharField()与write_only属性一起使用；

class UserProfileSerializer(serializers.ModelSerializer):
    full_name = serializers.CharField(max_length=225, write_only=True,
                                      required=False, allow_null=True)
    class Meta:
        model = users.models.User
        fields = (
            'phone_number',
            'email',
            'city',
            'full_name'
        )

然后您将能够发送json数据；

{
    "phone_number": "123456789",
    "email": "foo@bar.com",
    "city": "Foo",
    "full_name": "My Full Name"
}

并用于通过serializer.is_valid()方法获得该值；

full_name = serializer.validated_data.get('full_name', '')
# full_name --> My Full Name

Answer 2

您可以使用SerializerMethodField从名字 + 姓氏构建全名：

from rest_framework import serializers

class UserProfileSerializer(serializers.ModelSerializer):
    full_name = serializers.SerializerMethodField()
    class Meta:
        model = users.models.User
        fields = (
            'phone_number',
            'email',
            'city',
            'full_name'
        )

    def get_full_name(self, instance):
        return "{} {}".format(instance.first_name, instance.last_name)

DRF创建可写而不是模型字段

2 个答案: