[Answered ]-Modifying file name of a file in a Django ModelForm on save

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You need to override your Model’s save method, not your Form’s.

class MyModel(models.Model):
    # other fields
    my_file = models.FileField(upload_to='uploaddir')

    def save(self, *args, **kwargs):
        new_name = 'file_name-random-chars.ext'
        self.my_file.name = new_name
        super(MyModel, self).save(*args, **kwargs)

Your ModelForm for MyModel will call it’s model’s save method and do the trick.
Hope it helps 🙂

👤Gerard

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