如何避免覆盖 django 模型

Question

I have class called AlbumImage

class AlbumImage(models.Model):
    album = models.ForeignKey(Album, on_delete=models.PROTECT,related_name="raters")
    image = models.ImageField(upload_to="Album") 

when i upload first image called (for example) image1.png every thing in ok,,,,
But if I upload another image with the same name(image1.png), and go back to the first object, I will find the second image in its place.

How do I avoid overwrite?

Answer 1

The FileField and ImageField will detect this, and will add a random part to avoid overwriting.

It is only if you set it to a string, that it will take that, since then you refer to the name of a file. But if you thus work through a ( Model )Form, or the ModelAdmin , or you pass it with a File object.

Indeed, if you want to save twice an item named 3.jpeg , it will generate:

/media/3.jpeg
/media/3_S12ggWF.jpeg