[英]How to combine two querysets from two models? Django Rest Framework
[英]How to edit user profile in django rest framework from two models and save the change
我正在尝试创建一个端点来编辑下面的用户模型和自定义配置文件模型。
模型.py
class Profile(models.Model):
user = models.OneToOneField(User, on_delete=models.CASCADE)
bio = models.TextField(max_length=500)
location = models.CharField(max_length=50)
image = models.ImageField(default='default.jpg', upload_to='profile')
在常规的 Django 中,我会这样做:
视图.py
def edit_profile(request):
if request.method == 'POST':
form = EditProfileForm(request.POST, instance=request.user)
extended_profile_form = ProfileForm(request.POST,
request.FILES,
instance=request.user.profile)
if form.is_valid() and extended_profile_form.is_valid():
form.save()
extended_profile_form.save()
return redirect('accounts:profile')
else:
form = EditProfileForm(instance=request.user)
extended_profile_form = ProfileForm(instance=request.user.profile)
context = {
'form':form,
'extended_profile_form':extended_profile_form
}
return render(request, 'accounts/edit-profile.html', context)
django rest 框架的等价物是什么?
我试过了:
views.py (Django Rest 框架)
@api_view(['GET','PUT'])
def profile(request):
if request.method == 'GET':
user = User.objects.filter(username=request.user)
profile_user = Profile.objects.filter(user=request.user)
serializer_user = UserSerializer(user, many=True)
serializer_profile_user = ProfileSerializer(profile_user, many=True)
result = {'serializer_user': serializer_user.data, 'serializer_profile_user': serializer_profile_user.data}
return Response(result)
elif request.method == 'PUT':
user = User.objects.filter(username=request.user)
profile_user = Profile.objects.filter(user=request.user)
serializer_user = UserSerializer(user, data=request.data)
serializer_profile_user = ProfileSerializer(profile_user, data=request.data)
if serializer_user.is_valid() and serializer_profile_user.is_valid():
serializer_user.save()
serializer_profile_user.save()
result = {'serializer_user': serializer_user.data, 'serializer_profile_user': serializer_profile_user.data}
return Response(result)
result = {'serializer_user': serializer_user.data, 'serializer_profile_user': serializer_profile_user.data}
return Response(result.errors, status=status.HTTP_400_BAD_REQUEST)
当我浏览端点时,它会显示serializer_user
和serializer_profile_user
数据,但我无法使用 DRF 可浏览 API 编辑任何这些数据。
我是否认为上面的代码与普通 django 中用于编辑用户配置文件的代码等效?
对我来说看起来不错,但是您需要替换它:
if request.method == 'GET':
user = User.objects.filter(username=request.user)
有了这个:
if request.method == 'GET':
try:
user = User.objects.get(id=request.user.id)
except User.DoesNotExist:
return Response(data='no such user!', status=status.HTTP_400_BAD_REQUEST)
# you need to use objects.get because objects.filter returns a queryset not an abject
因为, request.user 是 User 模型的一个实例,您不能将其与用户的属性进行比较(在您的情况下为用户名)
PS:同样适用于您的 PUT 方法。
希望这可以帮助!
看。 你可以让它更容易。 让我们以 Post 模型为例(例如):
class Post(models.Model):
author = models.ForeignKey(base.AUTH_USER_MODEL, on_delete=models.CASCADE)
title = models.CharField(max_length=50)
text = models.TextField()
likes = models.ManyToManyField(base.AUTH_USER_MODEL, blank=True, related_name='post_likes')
created_date = models.DateTimeField(default=timezone.now)
您应该在序列化程序中对其进行描述(序列化程序类似于 DTO。它将数据转换为服务友好的 JSON 视图):
class PostCreateUpdateSerializer(serializers.ModelSerializer):
class Meta:
model = Post
fields = ['id', 'title', 'text']
最后一部分 - 端点:
class PostUpdateView(UpdateAPIView):
serializer_class = PostCreateUpdateSerializer
def get_queryset(self):
return Post.objects.filter(author=self.request.user)
还有一件事情。 您不应该为您的用户模型再创建一张表。 这是由于 BaseUser 模型的扩展。 帮助链接
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