在 django rest 框架中获取当前用户

Question

我在获取在 django rest 框架中上传图片的当前用户时遇到了很多麻烦。

Django rest framework 是纯 django 内部的一个应用程序，用于网页。

我正在使用 django rest 框架，以便用户可以在我们的服务器上上传文件......一切都很好，除了我们需要知道上传文件的用户是谁。我真的尝试了该网站和谷歌必须提供的许多解决方案，但无法使其正常工作。这是来自应用程序的代码。我们该怎么办？

viewset.py

from rest_framework import viewsets, filters
from api.serializers import UploadedImageSerializer # import our serializer
from api.models import UploadedImage # import our model

class UploadedImagesViewSet(viewsets.ModelViewSet):
    queryset = UploadedImage.objects.order_by('-id')[:1]
    serializer_class = UploadedImageSerializer

serializer.py

from rest_framework import serializers
from api.models import UploadedImage # Import our UploadedImage model


class UploadedImageSerializer(serializers.ModelSerializer):
    # Create a custom method field
# current_user = serializers.SerializerMethodField('_user')

class Meta:
    model = UploadedImage
    fields = ('id', 'image','name','Tip','curent_user') # only serialize the primary key and the image field

models.py

from django.db import models
import uuid,os
import sqlite3
import Function1
import Function2
from django.contrib.auth.models import User

def scramble_uploaded_filename(instance, filename):
    extension = filename.split(".")[-1]

    return "{}.{}".format(uuid.uuid4(), extension)

def filename(instance, filename):
    return filename


# Our main model: Uploaded Image
class UploadedImage(models.Model):
    image = models.ImageField("Uploaded image",upload_to=scramble_uploaded_filename)
    Tip = models.IntegerField("Captcha type")
    curent_user = models.CharField("Curent user",editable=False,max_length=100,default='')

    def filen(self) :
        path = self.image.path
        tip = self.Tip
        writez = Function1.File_input(path,tip)
        text = Function2.File_input (writez,0.83,tip)
        return text
    name = filen

views.py

from rest_framework import viewsets
from api.serializers import UploadedImageSerializer
from api.models import UploadedImage


class UploadViewSet(viewsets.ModelViewSet):
    """
    API endpoint
    """
    queryset = UploadedImage.objects.all()
    serializer_class = UploadedImageSerializer

Answer 1

这对我有用。您在上传类（在我的情况下为 Post）中创建一个 ForeignKey 并将其链接到用户（不要忘记进行迁移和迁移）。在您的视图中，当您呈现表单时，请使用instance = form.save(commit = False) -> instance.uploaded_by = request.user-> instance.save()，以便获取当前用户并将其保存在 Post(upload) 模型中。

views.py：

def upload(request):
    form = PostForm(request.POST or None, request.FILES or None)
    if form.is_valid():
        instance = form.save(commit = False)
        instance.uploaded_by = request.user
        instance.save()
        form.save_m2m()

models.py：

class Post(models.Model):
       uploaded_by = models.ForeignKey('auth.User',default=1,related_name='uploads')
       ...

要在管理员中查看用户，您必须在应用程序 admin.py 中安装“uploaded_by”字段。我假设你知道如何如果不是谷歌会帮助你;） 希望有帮助。

Answer 2

在我的项目中，我使用 HiddenField 来填充当前用户。例如你的情况：

class UploadedImageSerializer(serializers.ModelSerializer):
    current_user = serializers.HiddenField(default=serializers.CurrentUserDefault())

    class Meta:
        model = UploadedImage
        fields = ('id', 'image','name','Tip','current_user')