Django dynamic file upload path

Question

Here its my django code.

I want to upload my file on specific location and that path is created dynamically.

def get_upload_file(instance, filename):
   today_date = datetime.datetime.today().date()
   directory = 'Data/'+ str(today_date)
   if not os.path.exists(directory):
       os.makedirs(directory)
   full_path = str(directory)+"/%s" %(filename)
   print "full_path --> ",full_path
   # user = updated_path()
   # print user
   return full_path


class UploadFile(models.Model):
   path = models.FileField(upload_to=get_upload_file)

I am trying above code to upload file but i want to another directory in it and its name is on username.

expected output

Data/2015-08-16/username/ 

then i want to upload file in username directory

any solution please help me

Answer 1

Finally I got a solution for the above problem. When I am creating class instance set request object to that instance and access that request object in get_upload_file function

 class UploadFile(models.Model):
       path = models.FileField(upload_to=get_upload_file)
       reqObj = None

       def set_reqObj(self, request):
           self.reqObj = request

new_file = UploadFile(path = afile)
new_file.set_reqObj(request)

use reqObj in get_upload_file function

instance.reqObj.user.username

updated get_upload_file function is

def get_upload_file(instance, filename):
   today_date = datetime.datetime.today().date()
   directory = 'Data/'+ str(today_date)+'/'+instance.reqObj.user.username
   if not os.path.exists(directory):
       os.makedirs(directory)
   full_path = str(directory)+"/%s" %(filename)
   return full_path