I'm having a problem and I don't find any information about.
I define a field in my model like this.
class Dates(ndb.model):
...
date = ndb.DateTimeProperty(required = True) # I want to store date and time
...
Later I try a query (now I want all the dates for a day, I don'tn mind the time):
kl = Dates.query(ndb.AND(Dates.date.year == year,
Dates.date.month == month,
Dates.date.day == day),
ancestor = customer.key).fetch(keys_only = True)
dates = ndb.get_multi(kl)
But I get this error log: AttributeError: 'DateTimeProperty' object has no attribute 'year'
I don't know why. I've tried Dates.date() == date, Dates.date == date (<-DateTime obj), ...
My DB is still empty but I suppose this doesn't mind because I'll never have dates for every possible days.
Anybody knows why? Should I go with GQL instead?
You can use "range" queries for this. See example below.
import datetime
date = datetime.datetime.strptime('02/19/2013', '%m/%d/%Y')
kl = Dates.query(
ndb.AND(Dates.date >= date),
Dates.date < date + datetime.timedelta(days=1))
Will fetch all datetime's with 02/19/2013.