you need something like:
News.all().filter('created_at.month >',datetime(2011,3,31,23,59))
but..
your result set will be ordered primarily on created_at coz you are
using an inequality filter, if you do not mind that then ok.
IMHO a better solution to your problem would be if you use an equality
filter based on a computed property:
class BaseArticleModel(polymodel.PolyModel):
title = db.StringProperty()
created_at = db.DateProperty(auto_now_add=True)
updated_at = db.DateProperty(auto_now=True)
@db.ComputedProperty
def CM(self):return self.created_at.month
then you can filter on an equality which is much more convenient for
the query at the expense of a little overhead on storage and put
latency:
q = News.all().filter('CM =',1)
happy coding;)
On Apr 1, 7:20 pm, walter wrote:
> My model
>
> class BaseArticleModel(polymodel.PolyModel):
> title = db.StringProperty()
> created_at = db.DateProperty(auto_now_add=True)
> updated_at = db.DateProperty(auto_now=True)
>
> class News(BaseArticleModel):
> body = db.TextProperty()
>
> I ned get rows by last month. When to do filter like this
>
> q = News.all().filter('created_at.month = ',
> datetime(2011,04,01).month)
>
> I get "IndexError: The query returned fewer than 1 results"
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