def query(self, value, prefix=None):
if not value is None:
lookup_type, lookup_value = value
lookup_fieldname = self.model_field.get_attname()
if not prefix is None:
lookup_fieldname = prefix + '__' + lookup_fieldname
from models import UncertainDateTimeField as UncertainDateTimeModelField
if lookup_type == 'maybe_during':
return UncertainDateTimeModelField.get_maybe_sametime_q(lookup_value, lookup_fieldname)
elif lookup_type == 'maybe_before':
return UncertainDateTimeModelField.get_maybe_before_q(lookup_value, lookup_fieldname)
elif lookup_type == 'maybe_after':
return UncertainDateTimeModelField.get_maybe_after_q(lookup_value, lookup_fieldname)
elif lookup_type == 'maybe_between':
q = UncertainDateTimeModelField.get_maybe_after_q(lookup_value[0], lookup_fieldname)
q &= UncertainDateTimeModelField.get_maybe_before_q(lookup_value[1], lookup_fieldname)
return q
elif lookup_type == 'before':
return UncertainDateTimeModelField.get_definite_before_q(lookup_value, lookup_fieldname)
elif lookup_type == 'after':
return UncertainDateTimeModelField.get_definite_after_q(lookup_value, lookup_fieldname)
elif lookup_type == 'between':
q = UncertainDateTimeModelField.get_definite_after_q(lookup_value[0], lookup_fieldname)
q &= UncertainDateTimeModelField.get_definite_before_q(lookup_value[1], lookup_fieldname)
return q
return Q()