Python 使用 JSONResponse 在 Django 1.7 中序列化 QuerySet？
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Use JSONResponse to serialize a QuerySet in Django 1.7?
提问by Cris_Towi
I saw that now in Django 1.7 I can use the http.JSONResponseobject to send JSON to a client. My View is:
我现在在 Django 1.7 中看到我可以使用该http.JSONResponse对象将 JSON 发送到客户端。我的观点是：
#Ajax
def get_chat(request):
usuario = request.GET.get('usuario_consultor', None)
usuario_chat = request.GET.get('usuario_chat', None)
mensajes = list(MensajeDirecto.objects.filter(Q(usuario_remitente = usuario, usuario_destinatario = usuario_chat) | Q(usuario_remitente = usuario_chat, usuario_destinatario = usuario)))
return JsonResponse(mensajes, safe=False)
But I get the next error:
但我收到下一个错误：
<MensajeDirecto: Towi CrisTowi> is not JSON serializable`
<MensajeDirecto: Towi CrisTowi> 不是 JSON 可序列化的`
Do you know how to serialize a QuerySet to send it back in JSON form?
您知道如何序列化 QuerySet 以将其以 JSON 形式发回吗？
采纳答案by micrypt
from django.core import serializers
from django.http import JsonResponse
def get_chat(request):
usuario = request.GET.get('usuario_consultor', None)
usuario_chat = request.GET.get('usuario_chat', None)
mensajes = MensajeDirecto.objects.filter(Q(usuario_remitente = usuario, usuario_destinatario = usuario_chat) | Q(usuario_remitente = usuario_chat, usuario_destinatario = usuario))
return JsonResponse(serializers.serialize('json', mensajes), safe=False)
Ref: https://docs.djangoproject.com/en/dev/ref/request-response/#jsonresponse-objectshttps://docs.djangoproject.com/en/1.7/topics/serialization/
参考：https: //docs.djangoproject.com/en/dev/ref/request-response/#jsonresponse-objects https://docs.djangoproject.com/en/1.7/topics/serialization/
回答by Daniel van Flymen
You shouldn't re-serialize with JsonResponse. You'll get a correctly formatted JSON response with:
您不应该使用JsonResponse. 您将获得格式正确的 JSON 响应：
from django.core import serializers
from django.http import HttpResponse
def my_view(request):
my_model = MyModel.objects.all()
response = serializers.serialize("json", my_model)
return HttpResponse(response, content_type='application/json')
If you use a JsonResponse, it will coerce the already serialized JSON to a string, which is probably not what you want.
如果您使用 a JsonResponse，它会将已经序列化的 JSON 强制转换为字符串，这可能不是您想要的。
Note: Works with Django 1.10
注意：适用于 Django 1.10
