race condition problem

models.py

class Info(models.Model):
	itemCount = models.PositiveIntegerField(default = 0)
    
class Item(models.Model):
    name = models.CharField(max_length = 40)

views.py

def foo(info, name):
    try: item = Item.objects.get(name = name)
    except:
        item = Item(name = name)
        item.save()
        info.itemCount += 1
        info.save()
    return item

실제 상황에선 get_or_create를 사용 할 수 없는 상황입니다.