How can I rename the images uploaded in Django model

I have this code to submit the form:

form = form_class(request.POST, request.FILES, instance=object)
if form.is_valid(): 
form.save()

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image_path = models.ImageField(upload_to='books/')

Currently books/book1/jpg gets inserted into that field.

But I w开发者_运维百科ant that the image should be renamed to modelName_pk.jpg and that value gets saved in image_path

How can I achieve that?

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Each of the uploaded files are saved to request.FILES which are instances of UploadedFile, so, using the name of the image field in the form you can access it: request.FILES['imagename'].name.

Then you can save the model instance as usual. Hope this helps someone else because this is a very old question