Django Rest-framework：无法创建带有个人资料图片的用户

Question

我正在编写一个创建用户 API，方法是将 class users 扩展为 AbstractBaseUser class。 API 对于常规 model fields 来说工作正常，例如 EmailField、CharField、BooleanField。但后来我决定也存储 profile_picture 用户。因此，我创建了一个新字段 profile_picture 作为 ImageField 以将用户个人资料图片的路径存储在相同的扩展 users 模型中。

models.py

class Users(AbstractBaseUser, PermissionsMixin):

    """
    This model is used to store user login credential and profile information.
    It's a custome user model but used for Django's default authentication.
    """

    email = models.EmailField(max_length=255, unique=True)
    first_name = models.CharField(max_length=255, blank=False, null=False)
    last_name = models.CharField(max_length=255, blank=False, null=False)
    profile_picture = models.ImageField(upload_to='Images/', max_length=None, blank=True)
    is_active = models.BooleanField(default=True)

    # defing a custome user manager class for the custome user model.
    objects = managers.UserManager()

    # using email a unique identity for the user and it will also allow user to use email while logging in.
    USERNAME_FIELD = 'email'

然后我更新了 UserAPIView class 添加了 parser_classes = (FileUploadParser)

view.py

from django.shortcuts import render
from . import views
from rest_framework.views import APIView
from django.db import IntegrityError
from rest_framework import status
from . import models, serializers
from rest_framework.response import Response
from django.core.mail import send_mail
from rest_framework.parsers import FileUploadParser



class UserAPIViews(APIView):
    """
    """

    parser_classes = (FileUploadParser)

    def post(self, request, format=None):
        """
        """
        print(request.data)
        serialized_data = serializers.UserSerializer(data=request.data)
        if serialized_data.is_valid():

            try:
                user_id = serialized_data.save()
            except IntegrityError as error:
                message = f"Email already exist."
                return Response ({
                    'error_message' : message,
                    'status' : status.HTTP_226_IM_USED
                })

            subject = 'Eitan - Case Manager Account Credentials'
            body = f"Hi {serialized_data.validated_data.get('first_name')} Your case manager account is ready. Please use following credentials to login. Email - {serialized_data.validated_data.get('email')}, Password - {serialized_data.validated_data.get('password')} Thank You! Team Eitan."
            sender = "steinnlabs@gmail.com"
            to = serialized_data.validated_data.get('email')

            send_mail(subject, body, sender, [to], fail_silently=False)

            success_message = f"User has been created."

            return Response({
                'success_message' : success_message,
                'status' : status.HTTP_201_CREATED
            })

        else:
            return Response (serialized_data.error_messages)

已更新 settings.py 以添加 MEDIA_ROOT 和 MEDIA_URL

settings.py

# Image upload configurations
MEDIA_ROOT = os.path.join(BASE_DIR, "media")
MEDIA_URL = '/media/

现在，当我将对象传递给端点时 http://127.0.0.1:8000/user/create/ 它 returns -

{
    "detail": "Missing filename. Request should include a Content-Disposition header with a filename parameter."
}

JSON对象

{
    "first_name": "Abhishek",
    "last_name": "Muley",
    "email": "yogesh@steinnlabs.com",
    "password": "1234",
    "profile_picture":"Users/jeetpatel/Desktop/sample_image.png"
}

Answer 1

不是发送数据json对象，而是将数据作为表单对象发送，如果您选择将数据作为表单对象发送，那么您需要提及parser_classes = [FileUploadParser, FormParser, MultiPartParser ]

以下是帮助定义表单数据的link。

    class UserSerializer(serializers.ModelSerializer):

        def create(self, validated_data):
            request = self.context.get('request')
            user_obj = user.User.objects.create(**validated_data)

    class UserViewSet(viewsets.ModelViewSet):
        queryset = user.User.objects.all()
        serializer_class = user_details_serializer.UserSerializer
        # permission_classes = (AdminAccessPermission,)
        filter_backends = [filters.OrderingFilter, filters.SearchFilter]
        parser_classes = (MultiPartParser, FormParser)
        search_fields = ['id', 'username', 'email', 'first_name', 'last_name', 'phone', 'status']
        ordering_fields = ['id', 'username', 'email', 'first_name', 'last_name', 'phone', 'status']

Django Rest-framework：无法创建带有个人资料图片的用户

Django Rest-framework: Unable to create a user with profile picture

python

django-rest-framework

django-3.0