我无法将图像保存在此ImageField中。
发送数据时：
{
"image": ["No file was submitted. Check the encoding type on the form."]
}
model.py
class MyPhoto(models.Model):
owner = models.ForeignKey('auth.User', related_name='image')
image = models.ImageField(upload_to='photos', max_length=254)
serializers.py
class PhotoSerializer(serializers.HyperlinkedModelSerializer):
class Meta:
model = MyPhoto
fields = ('url', 'id', 'image', 'owner')
owner = serializers.Field(source='owner.username')
view.py
class PhotoList(APIView):
permission_classes = (permissions.IsAuthenticatedOrReadOnly, IsOwnerOrReadOnly)
def get(self, request, format=None):
photo = MyPhoto.objects.all()
serializer = PhotoSerializer(photo, many=True)
return Response(data=serializer.data, status=status.HTTP_200_OK)
def post(self, request, format=None):
serializer = PhotoSerializer(data=request.DATA)
if serializer.is_valid():
serializer.save()
return Response(serializer.data, status=status.HTTP_201_CREATED)
return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)
def pre_save(self, obj):
obj.owner = self.request.user
class PhotoDetail(APIView):
permission_classes = (permissions.IsAuthenticatedOrReadOnly, IsOwnerOrReadOnly)
def get_object(self, pk):
try:
return MyPhoto.objects.get(pk=pk)
except MyPhoto.DoesNotExist:
raise Http404
def get(self, request, pk, format=None):
photo = self.get_object(pk)
serializer = PhotoSerializer(photo)
return Response(serializer.data)
def put(self, request, pk, format=None):
photo = self.get_object(pk)
serializer = PhotoSerializer(photo, data=request.DATA)
if serializer.is_valid():
serializer.save()
return Response(serializer.data)
return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)
def delete(self, request, pk, format=None):
photo = self.get_object(pk)
photo.delete()
return Response(status=status.HTTP_204_NO_CONTENT)
def pre_save(self, obj):
obj.owner = self.request.user
url.py
urlpatterns = patterns('',
url(r'^$', 'main.views.main_page'),
url(r'^api/photo/$', views.PhotoList.as_view(), name='myphoto-list'),
url(r'^api/photo/(?P<pk>[0-9]+)/$', views.PhotoDetail.as_view(), name='myphoto-detail'),)
卷曲
curl -X POST -S \
-H 'Content-Type: application/json' \
-u "michael:bush_pass" \
--data-binary '{"owner":"/users/1/", \
"image":"/Users/test/Downloads/1383310998_05.jpg"}' \
127.0.0.1:8000/api/photo/
答案 0 :(得分：36)
我认为您可以在request.data之后使用django rest framework 3.0。 request.DATA和request.FILES的使用现在正在等待弃用，而是支持包含所有已解析数据的单个request.data属性。
您可以从here
查看答案 1 :(得分：21)
您似乎错过了request.FILES和post处理程序中序列化程序构造函数的put参数。
serializer = PhotoSerializer(data=request.DATA, files=request.FILES)
答案 2 :(得分：9)
使用Django Rest Framework上传图像文件：
models.py：
class MyPhoto(models.Model):
name = models.CharField(max_length=255)
image = models.ImageField(upload_to='myphoto/%Y/%m/%d/', null=True, max_length=255)
serializers.py：
class MyPhotoSerializer(serializers.ModelSerializer):
class Meta:
model = MyPhoto
fields = ('id', 'name', 'image')
views.py：
class PhotoList(APIView):
def post(self, request, format=None):
serializer = MyPhotoSerializer(data=request.data)
if serializer.is_valid():
serializer.save()
return Response(serializer.data, status=status.HTTP_201_CREATED)
else:
return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)
希望它有所帮助。
答案 3 :(得分：4)
如果您要发布图像，以下情况应该有效 as base64字符串和相应的序列化程序设置，它继承serializer.Serializer
# views.py
import base64
import os
from django.core.files import File
class PhotoList(APIView):
def post(self,request,format=None):
serializer = PhotoSerializer(data=request.data)
if serializer.is_valid():
# access the data as serializer.validated_data['keys']
# save the MyPhoto obj lets call it myphoto
# get the base64 string
imgstr64 = serializer.validated_data['corresponding filed in the serializer']
imgdata = base64.b64decode(imgstr64)
fname = '/tmp/%s.jpg'%(str(myphoto.id))
with open(fname,'wb') as f:
f.write(imgdata)
imgname = '%s.jpg'%(str(myphoto.id))
myphoto.image.save(imgname,File(open(fname,'r')))
os.remove(fname)
答案 4 :(得分：0)
**
Django Rest Framework Image Upload
views.py
class FileUploadView(APIView):
permission_classes = []
parser_class = (FileUploadParser,)
@csrf_exempt
def uploatuserprofile( request):
#fetches specific user image
if request.method=='GET':
user_data=JSONParser().parse(request)
obj=UserProfile.objects.filter(user=user_data["user"])
serializer=UserProfileSerializer(obj,many=True)
return JsonResponse(serializer.data,safe=False)
if request.method == 'POST':
# print('=====================================================================================>',request.FILES['profile_image'])
# print("##################################################################################### ",request.POST['user'])
try:
s = UserProfile.objects.create(user_id = request.POST['user'], profile_image=request.FILES['profile_image'])
s.save()
except:
return JsonResponse('Failed to upload Integrity error',safe=False)
# file_serializer=UserProfileSerializer(request.POST,request.FILES)
# if file_serializer.is_valid():
# file_serializer.save()
return JsonResponse('profile uploded Sucessfully!!',safe=False)
return JsonResponse('Failed to upload',safe=False)
urls.py of application
url(r'^uploatuserprofile/$',views.FileUploadView.uploatuserprofile),
urls.py of project
from django.conf import settings
from django.conf.urls.static import static
from django.contrib import admin
from django.urls import path
from django.conf.urls import url,include
urlpatterns = [
path('admin/', admin.site.urls),
url(r'^',include('ChatApp.urls'))
]
if settings.DEBUG:
urlpatterns += static(settings.MEDIA_URL,
document_root=settings.MEDIA_ROOT)
models.py
class UserProfile(models.Model):
user = models.ForeignKey(Users,on_delete=models.CASCADE)
profile_image = models.ImageField(upload_to='images/', blank=True, null=True)
def __str__(self):
return self.profile_image.name
setting.py
STATIC_URL = '/images/'
STATICFILES_DIRS = [
os.path.join(BASE_DIR, "images"),
]
STATIC_DIR = os.path.join(BASE_DIR, 'images')
# Base url to serve media files
MEDIA_URL = '/media/'
# Path where media is stored
MEDIA_ROOT = os.path.join(BASE_DIR, 'media/')`enter code here`**