Django REST Framework+Django REST Swagger+ImageField

Question

我用ImageField创建了一个简单的模型，我想用django-rest-framework+django-rest-swagger创建一个api视图，它是文档化的，并且能够上传文件。

以下是我得到的：

models.py

from django.utils import timezone
from django.db import models

class MyModel(models.Model):

    source = models.ImageField(upload_to=u'/photos')
    is_active = models.BooleanField(default=False)
    created_at = models.DateTimeField(default=timezone.now)

    def __unicode__(self):
        return u"photo {0}".format(self.source.url)

from .models import MyModel

class MyModelSerializer(serializers.ModelSerializer):

    class Meta:
        model = MyModel
        fields = [
            'id',
            'source',
            'created_at',
        ]

views.py

from rest_framework import generics
from .serializer import MyModelSerializer

class MyModelView(generics.CreateAPIView):
    serializer_class = MyModelSerializer
    parser_classes = (FileUploadParser, )

    def post(self, *args, **kwargs):
        """
            Create a MyModel
            ---
            parameters:
                - name: source
                  description: file
                  required: True
                  type: file
            responseMessages:
                - code: 201
                  message: Created
        """
        return super(MyModelView, self).post(self, *args, **kwargs)

urls.py

from weddings.api.views import MyModelView

urlpatterns = patterns(
    '',
    url(r'^/api/mymodel/$', MyModelView.as_view()),
)

我阅读了django-rest-framework中的这部分文档：

我正在使用django==1.8.8、djangoRestFramework==3.3.2和django-rest-swagger==0.3.4。

Answer 1

我通过对你的代码做了几个修改来完成这个工作。

首先，在models.py中，将imagefield名称更改为file并使用相对路径上载文件夹。当您将文件作为二进制流上载时，它可以在request.data字典中的文件键(request.data.get('file'))下使用，因此最干净的选项是将它映射到具有相同名称的model字段。

from django.utils import timezone
from django.db import models


class MyModel(models.Model):

    file = models.ImageField(upload_to=u'photos')
    is_active = models.BooleanField(default=False)
    created_at = models.DateTimeField(default=timezone.now)

    def __unicode__(self):
        return u"photo {0}".format(self.file.url)

在serializer.py中，将源字段重命名为file：

class MyModelSerializer(serializers.ModelSerializer):

    class Meta:
        model = MyModel
        fields = ('id', 'file', 'created_at')

在views.py中，不要调用super，而是调用create（）：

from rest_framework import generics
from rest_framework.parsers import FileUploadParser

from .serializer import MyModelSerializer


class MyModelView(generics.CreateAPIView):
    serializer_class = MyModelSerializer
    parser_classes = (FileUploadParser,)

    def post(self, request, *args, **kwargs):
        """
            Create a MyModel
            ---
            parameters:
                - name: file
                  description: file
                  required: True
                  type: file
            responseMessages:
                - code: 201
                  message: Created
        """
        return self.create(request, *args, **kwargs)

我已经使用邮差Chrome扩展来测试这一点。我已将图像上载为二进制文件,并手动设置了两个头：

Content-Disposition: attachment; filename=upload.jpg
Content-Type: */*