Django custon Benutzermodell/Serializer

Question

Ich habe einen Farmer Modell, das im Grunde ist die Erweiterung der Benutzer I first_name & last_name von Benutzer in meinem Farmer und möchte verwenden möchten serialisieren sie auch.

Meine models.py sieht wie folgt aus:

class Farmer(models.Model): 

    #Field for refering the default user 
    user = models.OneToOneField(User, on_delete=models.CASCADE, primary_key=True) 

    def __str__(self):    # __unicode__ on Python 2 
    return "%s the farmer" % self.user.username 

Meine serializers.py sieht wie folgt aus:

class UserSerializer(serializers.ModelSerializer): 
first_name = serializers.CharField(required=True) 
last_name = serializers.CharField(required=True) 
class Meta: 
    model = User 
    fields = ('first_name', 'last_name') 


class FarmerSerializer(serializers.ModelSerializer): 
user = UserSerializer() 
... 
... 
class Meta: 
    model = Farmer 
    fields = ('user','birth_date', 'email', 'phone_number') 

Für welche ich JSON erhalten wie folgt:

{ "user" : {"first_name": "Jannes", "letzter_name": "Stubbi"}, "birth_date": "2016-04-13", "email": "test@test.com", "phone_num ber ": "+4912345678" }]

ich lieber wollen Daten, wie sie:

{" first_name ": "Jannes"," last_name ": "Stubbi"," birth_date „: "2016.04.13", "E-Mail": "test@test.com", "phone_number": "4912345678" }

Mein views.py

class JSONResponse(HttpResponse): 
    """ 
    An HttpResponse that renders its content into JSON. 
    """ 
    def __init__(self, data, **kwargs): 
    content = JSONRenderer().render(data) 
    kwargs['content_type'] = 'application/json' 
    super(JSONResponse, self).__init__(content, **kwargs) 


#view to get the details of all the farmers 
@api_view(('GET',)) 
def get_all_farmers_details(request): 

#Fetch all the farmers from database 
results = Farmer.objects.all() 
#Serialize the obtained results 
serializer = FarmerSerializer(results, many=True) 
return Response(serializer.data) 

Wie kann ich Dies erreichen?

Answer 1

Sie können serializer.data vom view zurück ändern:

@api_view(('GET',)) 
def get_all_farmers_details(request): 

    #Fetch all the farmers from database 
    results = Farmer.objects.all() 
    #Serialize the obtained results 
    serializer = FarmerSerializer(results, many=True) 

    userDict = serializer.data.pop("user", None) 
    if userDict is not None: 
     serializer.data['first_name'] = userDict['first_name'] 
     serializer.data['last_name'] = userDict['last_name'] 

    return Response(serializer.data) 

Answer 2

sein kann Sie so etwas wie dies versuchen.

class FarmerSerializer(serializers.ModelSerializer): 
    first_name = serializers.CharField(source='user.first_name') 
    last_name = serializers.CharField(source='user.last_name') 
    .. 
    .. 
    class Meta: 
     model = Farmer 
     fields = ('first_name', 'last_name', 'phone_number', 'email') 

Der Trick besteht darin, das 'source' Attribut zu verwenden.