上傳django中的圖像時出錯：「強制爲Unicode：需要字符串或緩衝區，找到元組」

Question

試圖與一起使用ImageField在django中。 這裏是我的模式

class Album(models.Model): 
    title = models.CharField(max_length=100) 

    def __unicode__(self): 
     return self.title 

class Photo(models.Model): 
    image = models.ImageField(upload_to='photos/') 
    album = models.ForeignKey(Album) 
    title = models.CharField(max_length=100, default="") 

    def __unicode__(self): 
     return self.title 

class PhotoModelForm(forms.ModelForm): 
    class Meta: 
     model = Photo 

這裏是一部分urls.py

... 
url(r'^trial/upload/$', 'trial.views.upload'), 
... 

views.py

def upload(request): 
    if request.method == 'POST': 
     form = PhotoModelForm(request.POST, request.FILES) 
     if form.is_valid(): 
      photo = form.save() 
      return render_to_response('trial/thanks_upload.html',{ 
       'photo': photo 
      }, context_instance = RequestContext(request)) 
    else: 
     form = PhotoModelForm() 
    return render_to_response('trial/upload.html', { 
     'form': form 
    }, context_instance = RequestContext(request)) 

upload.html

<form enctype="multipart/form-data" action="/trial/upload/" method="post"> 
    {% csrf_token %} 
    {% for field in form %} 
     <div class="fieldWrapper"> 
      {{ field.errors }} 
      {{ field.label_tag }}: {{ field }} 
     </div> 
    {% endfor %} 
    <p><input type="submit" value="Upload" /></p> 
</form> 

但在節能我有一個錯誤：在/試用/上傳/ 脅迫到Unicode 類型錯誤：需要字符串或緩衝區，元組發現

錯誤出現在photo.save

有沒有人有想法爲什麼會這樣？爲什麼要出現元組？我確信有一個愚蠢的錯誤...

Answer 1

我已經得到它自己。在settings.py有MEDIA_ROOT設置，這是

MEDIA_ROOT = 'd:/dev/python/scripts/app/media/', 

的Python使得因爲在端部的逗號的對象元組。這就是爲什麼它無法保存對象。下次看你的逗號！