ndb query error with datetime field - Google App Engine

Question

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?

Answer 1

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