created_at = db.DateTimeProperty(auto_now_add=True)
updated_at = db.DateTimeProperty(auto_now=True)
I almost add that to any datastore model i got so i could always use order
by created_at desc.
Please remember that in some cases you need an index for that to use online.
Default for datastore is ascending.
-
Cheers,
def AlonCarmel(request)
import simplejson as json
contact = {}
contant['email'] = '[email protected]'
contact['twitter'] = '@aloncarmel'
contact['web'] = 'http://aloncarmel.me'
contact['phone'] = '+972-54-4860380'
return HttpResponse(json.dumps(contact))
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On Fri, Jul 16, 2010 at 7:56 PM, Geoffrey Spear <[email protected]>wrote:
> If you want to get your data in the order it was inserted, it's almost
> certainly easier to use a DatetimeProperty with auto_now_add = True
> than to try to maintain your own guaranteed sequential IDs.
>
> On Jul 16, 12:07 pm, Blixt <[email protected]> wrote:
> > Okay, so data will be returned in a non-determinate order unless you
> > specify keys yourself (since ids aren't guaranteed to be in order).
> > I'll make my own counter.
> >
> > Thanks!
> >
> > On Jul 16, 6:01 pm, Nate Bauernfeind <[email protected]>
> > wrote:
> >
> > > They will be ordered by key. You should consider watching one of the
> > > datastore tech talks.
> >
> > > On Fri, Jul 16, 2010 at 3:54 AM, Blixt <[email protected]> wrote:
> > > > Imagine this query:
> >
> > > > Person.all().fetch(100)
> >
> > > > Is the order of data in the datastore guaranteed, or can the order of
> > > > the entities returned change as data is inserted?
> >
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