[CentralOH] Django Management Command Memory Usage

jep200404 at columbus.rr.com jep200404 at columbus.rr.com
Tue Jun 5 22:55:04 CEST 2012

On Mon, 4 Jun 2012 10:39:37 -0400, Kurtis Mullins <kurtis.mullins at gmail.com> wrote:

> It looks like you've got the fat trimmed off this one about as much as you
> can. 

I found a way. Using pre_save stuff elsewhere, I trimmed some more: 

    def handle(self, *args, **options):
        for record in Places.objects.all():

Yup. It's so trim now it looks like I forgot something. 
The ugly chunky version is: 

    def handle(self, *args, **options):
        chunk = 100000
        min_id = Places.objects.all().aggregate(Min('id'))['id__min']
        max_id = Places.objects.all().aggregate(Max('id'))['id__max']
        for j in xrange(min_id, max_id + 1, chunk):
            for record in Places.objects.all().filter(
                    id__gte=j).filter(id__lt=j + chunk):

pre_save stuff is cool, very cool. 

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