python - Reading uploaded file content in django Model clean_fields()? -

I try to open the uploaded file in model clean_fields () , Doing / doing class.model: attach = models.fileField (upload_to = 'attach') DRF clean_fields (self, expelled = True): f = open (self.attach.path , 'Rb') The problem is that before model save () , self.attach.path is actually wrong upload_to

self.attach.path is present and true after model's save () < P> How do I verify the content of an uploaded file in the clean_fields () process? I want to increase the assumptions, not error after saving the model.

In these situations, I'm sth ... like this ...

  def save (self, * args, ** kwargs): super (gallery, self). Save (* Args, ** kwargs) Gallery = self.process_control () Super (Gallery, Auto) .delete () Return Gallery