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True. It's even easier in Django using F Expressions book = Book.objects.get(isbn="978-0099466031") book.copies_in_stock = F('copies_in_stock ') -1
by oxalorg 7y ago
True. It's even easier in Django using F Expressions
book = Book.objects.get(isbn="978-0099466031")
book.copies_in_stock = F('copies_in_stock ') -1
book.save()
F expressions perform operations at the DB level directly using column name without ever pulling that data into Python code.