使用django -ajax-uploader重命名文件

Question

我使用https://github.com/skoczen/django-ajax-uploader在django上傳文件。它的工作原理，但我想在這個過程中重命名上傳的文件。我想添加一個時間戳，所以我確定它有一個唯一的名稱。

如何做到這一點？

Answer 1

我終於結束了使用jQuery-File-Upload。它允許定義view.Example裏面的文件的路徑：

urls.py

url(r'^upload_question_photo/$', UploadQuestionPhoto.as_view(), name="upload_question_photo"), 

的index.html

var input=$(this).find("input"); 
var formData = new FormData(); 
formData.append('photo', input[0].files[0]); 
formData.append('question', input.attr("name")); 
formData.append('csrfmiddlewaretoken', '{{ csrf_token }}'); 
input.fileupload(
{ 
    dataType: 'json', 
    url: "{% url 'campaigns:upload_question_photo' %}", 
    formData: formData, 

    //the file has been successfully uploaded 
    done: function (e, data) 
    { 
     response=data.result; 
     window.console&&console.log("Successfully uploaded!"); 
     window.console&&console.log(response.path); 
    }.bind(this), 

    processfail: function (e, data) 
    { 
     window.console&&console.log('Upload has failed'); 
    }.bind(this) 
}); 

views.py

class UploadQuestionPhoto(View): 
    u"""Uploads photos with ajax 
    Based on the code #https://github.com/miki725/Django-jQuery-File-Uploader-Integration-demo/blob/master/upload/views.py 
    """ 

    def post(self, request, *args, **kwargs): 
     print "UploadQuestionPhoto post" 
     response={} 

     question=str(request.POST["question"])  
     #path where the file is going to be stored 
     path="/question/" + question + "/" 
     photo_path=settings.MEDIA_ROOT + path 

     # if 'f' query parameter is not specified -> file is being uploaded 
     if not ("f" in request.GET.keys()): 
      print "file upload" 
      # make sure some files have been uploaded 
      if request.FILES: 
       # get the uploaded file 
       photo_file = request.FILES["question_field_" + question] 
       name_with_timestamp=str(time.time()) + "_" + photo_file.name 

       # create directory if not exists already 
       if not os.path.exists(photo_path): 
        os.makedirs(photo_path) 

       # add timestamp to the file name to avoid conflicts of files with the same name 
       filename = os.path.join(photo_path, name_with_timestamp) 
       # open the file handler with write binary mode 
       destination = open(filename, "wb+") 
       # save file data with the chunk method in case the file is too big (save memory) 
       for chunk in photo_file.chunks(): 
        destination.write(chunk) 
       destination.close() 

       #response sent back to ajax once the file has been successfuly uploaded 
       response['status']='success' 
       response["path"]=photo_path+name_with_timestamp 


     # file has to be deleted (TODO: NOT TESTED) 
     else: 
      # get the file path by getting it from the query (e.g. '?f=filename.here') 
      filepath = os.path.join(photo_path, request.GET["f"]) 
      os.remove(filepath) 
      # generate true json result (if true is not returned, the file will not be removed from the upload queue) 
      response = True 

     # return the result data (json) 
     return HttpResponse(json.dumps(response), content_type="application/json") 

Voilà！希望能幫助到你。