Django REST框架：从字符串创建JSON片段 [英] Django REST framework: create JSON fragments from string

问题描述

我想用JSON将JSON片段存储在模型的TextField中：

I want to store JSON fragments in TextField of my model with JSON:

class A(models.Model):
    name = models.CharField(max_length=200)
    people = models.TextField()

我有序列化器类：

class ASerializer(serializers.HyperlinkedModelSerializer):
    class Meta:
        model = A
        fields = ('name', 'people')

如何我告诉Django REST Framework将人字符串像JSON一样对待，而不是像字符串一样。例如。当人们是[{ name： A， surname： B}]我想在Django REST框架生成的JSON中使用

How can I told Django REST Framework to treat people string like JSON, not like string. E.g. when people is [ {"name":"A", "surname":"B"}] I want have in JSON generated by Django REST framework

"people" : [ {"name":"A", "surname":"B"}]

而不是

"people" : "[ {\"name\":\"A\", \"surname\":\"B\"}]"

---

编辑：我更改了ASerializer类，并使用了django-jsonfield中的JSONField，并且一切正常。下面的新代码，transform_people方法用于序列化，validate_people用于反序列化：

---

I change ASerializer class and used JSONField from django-jsonfield and everything works. New code below, transform_people method serves to serialization and validate_people to deserialization:

class ASerializer(serializers.ModelSerializer):
    def transform_people(self, obj, value):
        if obj is None:
            return obj
        else:
            return obj.people

    def validate_people(self, attrs, source):
        return attrs

    class Meta:
        model = A

推荐答案

将您的响应转换为json对象

Convert your response to json object

import json
## In this case lets say
response = [{"name":"A", "surname":"B"}]
data = json.dumps(response)
print data

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