嘗試使用REST框架或Tastypie將圖像上傳到FileField模型

Question

任何人都可以爲我提供一步一步/鏈接資源，瞭解如何使用REST API將文件從移動/桌面應用程序上載到基於Django的服務器？

服務器有一個名爲「縮略圖」的FileField模型。我能夠上傳其他數據，但文件似乎是一個巨大的問題。

請注意，我不是通過一個HTTP請求談論使用的瀏覽器/ Django的形式上傳，但是從一個應用程序

API：

from models import Article 

class ArticleResource(ModelResource): 

    class Meta: 
     queryset = Article.objects.all() 
     resource_name = 'article' 
     filtering = {'title': ALL} 
     authorization=Authorization() 

我使用做出獨立python腳本的Http請求（模擬移動應用）

url="http://127.0.0.1:8000/articles/api/article/" 

data={ 
    'title':'Tastypie', 
    'body':'First Restful client', 
    'pub_date':'05/02/2015', 
    } 
files= {'thumbnail': open('django.png', 'rb')} 
headers = {'content-type': 'image/png'} 
print requests.post(url, files=files) 

模型：

class Article(models.Model): 
    title = models.CharField(max_length=200) 
    body = models.TextField() 
    pub_date = models.DateTimeField('date published') 
    likes = models.IntegerField(default=0) 
    thumbnail = models.FileField(blank=True,null=True,upload_to=get_upload_file_name) 
    def __unicode__(self): 
     return str(self.title) 

編輯：

這工作：

API：

class MultipartResource(object): 
     def deserialize(self, request, data, format=None): 
      if not format: 
       format = request.META.get('CONTENT_TYPE', 'application/json') 
      if format =='application/x-www-form-urlencoded': 
       return request.POST 
      if format.startswith('multipart'): 
       data = request.POST.copy() 
       photo = Article() 
       photo.thumbnail = request.FILES['thumbnail'] 
       photo.title = request.POST.get('title') 
       photo.body=request.POST.get('body') 
       photo.pub_date = request.POST.get('pub_date') 
       photo.save() 
       # ... etc 
       return data 
      return super(ArticleResource, self).deserialize(request, data, format) 

     # overriding the save method to prevent the object getting saved twice 
     def obj_create(self, bundle, request=None, **kwargs): 
      pass 


class ArticleResource(MultipartResource,ModelResource): 

    class Meta: 
     queryset = Article.objects.all() 
     resource_name = 'article' 
     filtering = {'title': ALL} 
     authorization=Authorization() 

HTTP請求的Python腳本：

url="http://127.0.0.1:8000/articles/api/article/" 

data={ 
    'title':'Tastypie', 
    'body':'First Restful client', 
    'pub_date':'2015-02-05', 
    } 
files= {'thumbnail': open('django.png', 'rb')} 

print requests.post(url, data=data, files=files).text 

Answer 1

Tastypie好好嘗試一下有什麼好的辦法來挽救二進制文件。我會嘗試這樣的：

class ArticleResource(ModelResource): 

    class Meta: 
     queryset = Article.objects.all() 
     resource_name = 'article' 
     filtering = {'title': ALL} 
     authorization=Authorization()  

    # save the photo 
     def deserialize(self, request, data, format=None): 
      if not format: 
       format = request.META.get('CONTENT_TYPE', 'application/json') 

      if format.startswith('multipart'): 
       data = request.POST.copy() 
       photo = Article() 
       photo.thumbnail = request.FILES['thumbnail'] 
       photo.title = request.POST.get('title') 
       # ... etc 
       return data 
      return super(ArticleResource, self).deserialize(request, data, format) 

     # overriding the save method to prevent the object getting saved twice 
     def obj_create(self, bundle, request=None, **kwargs): 
      pass