Django-Rest-Framework:如何使用request.user为登录用户发布到foreignkey字段

Question

我正在使用Django rest Framework来使api被Android应用程序使用.我有一个活动模型和地点:

  class Event(models.Model):
     user=models.ForeignKey(User,related_name="%(class)s")
     title=models.CharField(max_length=256)
     venue=models.ForeignKey(Venue,related_name="%(class)s_venue")
     description=models.CharField(max_length=256)
     time=models.DateTimeField(max_length=256)
     event_pic=models.ImageField(upload_to="photos/event_pic/%Y/%m/%d",null=True,blank=True)

     album=models.ForeignKey(Album,null=True,blank=True,related_name="%(class)s_album")
     photo=models.ForeignKey(Photo,null=True,blank=True,related_name="%(class)s_photo")

     likes=GenericRelation(Like,null=True,blank=True)
     comments=GenericRelation(Comments,null=True,blank=True)

这是我的场地模型.

class Venue(models.Model):
     name=models.CharField(max_length=256)
     longitude=models.FloatField(null=True,blank=True)
     latitude=models.FloatField(null=True,blank=True)

     def __unicode__(self):
         return self.name

我想使用request.user和使用name的场地字段发布到用户字段.是否可以这样做,如果是这样,我该怎么做.以下是序列化程序和视图.

class WeddingList(generics.ListCreateAPIView):    

     queryset=Wedding.objects.all()
     serializer_class=WeddingSerializer


class WeddingDetail(generics.RetrieveUpdateDestroyAPIView):
     queryset=Wedding.objects.all()
     serializer_class=WeddingSerializer





class VenueList(generics.ListCreateAPIView):
     queryset=Venue.objects.all()
     serializer_class=VenueSerializer

class VenueDetail(generics.RetrieveUpdateDestroyAPIView):
     queryset=Venue.objects.all()
     serializer_class=VenueSerializer

class VenueSerializer(serializers.ModelSerializer):
      class Meta:
           model=Venue
           fields=('name')

class WeddingSerializer(serializers.ModelSerializer):


      class Meta:
           model = Wedding
           excludes=('id',)

Answer 1

从Django REST Framework 3开始,pre_save钩子不再可用了.相反,覆盖perform_create:

def perform_create(self, serializer):
    serializer.save(user=self.request.user, ...)

Answer 2

在您的视图中添加以下代码：

def pre_save(self, obj):
    # Set here all fields that you need and that aren't already set
    obj.user = self.request.user
    obj.name = ...

并修改它以满足您的需要:)