Django rest 框架发送一个带单引号的字符串而不是带双引号的 JSON答案

【问题标题】：Django rest framework sending a string with single quotes back instead of JSON with double quotesDjango rest 框架发送一个带单引号的字符串而不是带双引号的 JSON
【发布时间】：2015-08-05 02:31:23
【问题描述】：

我通过 POST 将 JSON 发送到视图。我得到的响应只是 JSON 的一部分，其余的已经从双引号变成了单引号。

我的问题是如何确保我将所有这些都作为 JSON 发送回来？作为对我的问题的额外奖励，我不知道将哪些字段发送给承租人。

POST 看起来像：

{"leasee":
{"profession":{"permanentMakeup":true,"esthetician":true,"hairStylist":true},
"compare":{"uniqueVsChic":"56"},
"name":"dfasdfasdf",
"contact":{"text":true,"facebook":true}}}

但是 GET 给了我：

{"leasee":
"{'compare': {'uniqueVsChic': '56'}, 
'profession': {'hairStylist':True, 
'esthetician': True, 
'permanentMakeup': True}, 
'name':'dfasdfasdf', 
'contact':{'facebook': True,'text': True}}",
"created_at":"2015-05-22T23:27:13.598686Z",
"updated_at":"2015-05-22T23:27:13.609893Z"}

我的意见.py：

from rest_framework import viewsets
from sitepages.models import SalonSubmission, StylistSubmission
from sitepages.serializers import SalonSerializer, StylistSerializer
from django.db.models.signals import post_save
from django.core.mail import send_mail
from django.dispatch import receiver


class SalonViewSet(viewsets.ModelViewSet):
    queryset = SalonSubmission.objects.order_by('-created_at')
    serializer_class = SalonSerializer

    def perform_create(self, serializer):
        instance = serializer.save()
        post_save.send(sender=self.__class__, name=instance.business_name, phone=instance.phone)
        return super(SalonViewSet, self).perform_create(serializer)


class StylistViewSet(viewsets.ModelViewSet):
    queryset = StylistSubmission.objects.order_by('-created_at')
    serializer_class = StylistSerializer

    def perform_create(self, serializer):
        instance = serializer.save()
        post_save.send(sender=self.__class__, stylist=instance.leasee)
        return super(StylistViewSet, self).perform_create(serializer)


@receiver(post_save, sender=SalonViewSet)
def send_email(sender, **kwargs):
    send_mail(kwargs['name'], kwargs['phone'], 'from@example.com',
              ['to@example.com'], fail_silently=False)


@receiver(post_save, sender=StylistViewSet)
def send_email(sender, **kwargs):
    send_mail('aName', kwargs['stylist'], 'from@example.com',
              ['to@example.com'], fail_silently=False)

我的 serializers.py：

from rest_framework import serializers
from sitepages.models import SalonSubmission, StylistSubmission


class SalonSerializer(serializers.ModelSerializer):
    class Meta:
        model = SalonSubmission

        fields = ('business_name', 'phone', 'created_at', 'updated_at')
        read_only_fields = ('created_at', 'updated_at')


class StylistSerializer(serializers.ModelSerializer):
    class Meta:
        model = StylistSubmission
        fields = (
            'leasee',
            'created_at',
            'updated_at'
        )
        read_only_fields = ('created_at', 'updated_at')

我的models.py：

从 django.db 导入模型

class SalonSubmission(models.Model):
    business_name = models.CharField(max_length=250)
    phone = models.CharField(max_length=250)

    created_at = models.DateTimeField(auto_now_add=True)
    updated_at = models.DateTimeField(auto_now=True)


class StylistSubmission(models.Model):
    leasee = models.CharField(max_length=2000)
    file = models.FileField(upload_to="/media/")

    created_at = models.DateTimeField(auto_now_add=True)
    updated_at = models.DateTimeField(auto_now=True)

【问题讨论】：

标签： django python-3.x django-rest-framework

【解决方案1】：

看来leasee = models.CharField(max_length=2000) 是一个字符域。所以 Django 只是简单地返回存储在这个字段中的字符串。它也没有存储有效的 JSON 字符串，因为 JSON 只允许双引号。

{'compare': {'uniqueVsChic': '56'}, 
'profession': {'hairStylist':True, 
'esthetician': True, 
'permanentMakeup': True}, 
'name':'dfasdfasdf', 
'contact':{'facebook': True,'text': True}}

看起来像字符串化的dict。因此，您可以尝试在序列化程序中将leasee 解析为dict。

【讨论】：