Цитата:
начните с простой отладки, распечатайте внутри onCallgetAmountExtended() просто
echo $object;
и посмотрите что там у вас.
вот что выдаёт:
Model 'shop_order',
fields: shop_country_id=0,
shop_country_location_id=0,
shop_country_location_city_id=0,
shop_country_location_city_area_id=0,
postcode=,
address=,
surname=,
name=,
patronymic=,
company=,
phone=8 (643) 322-22-22,
fax=,
email=,
description=1437549903,
shop_delivery_condition_id=0,
shop_delivery_id=0,
shop_payment_system_id=0,
shop_currency_id=1,
shop_order_status_id=0,
tin=,
kpp=,
shop_id=3,
siteuser_id=0,
acceptance_report=996,
vat_invoice=,
datetime=2015-07-22 10:25:03,
paid=,
payment_datetime=,
system_information=,
canceled=,
user_id=21,
invoice=996,
status_datetime=2015-07-22 10:25:03,
guid=46279A77-88F7-A806-EBD4-F2D0C4BB2990,
delivery_information=,
ip=127.0.0.1,
unloaded=0,
deleted=0,
id=996int(0)