Re: race condition on post multiple files to the same folder

Hello there, I think you just hit #29890[0], a bug present in Django in 2.0+ and fixed in Django 2.1.3 which should be released today[1]. Simply updating to 2.1.3 when it's released should address your issue. Cheers, Simon [0] https://code.djangoproject.com/ticket/29890 [1] https://docs.django

race condition on post multiple files to the same folder

Here is my model definition class Item(models.Model): name = models.CharField(max_length=256) def item_id_path(instance, filename): return '{}/{}'.format(instance.item.id, filename) # Create your models here. class File(models.Model): file = models.FileField(upload_to=item_id_path)