def delivery_method(cls):
'''
Selection of delivery method (options)
Based on the shipping address selected, the delivery options
could be shown to the user. This may include choosing shipping speed
and if there are multiple items, the option to choose items as they are
available or all at once.
'''
NereidCart = Pool().get('nereid.cart')
Carrier = Pool().get('carrier')
Sale = Pool().get('sale.sale')
signer = URLSafeSerializer(current_app.config['SECRET_KEY'])
cart_sale = NereidCart.open_cart().sale
if not cart_sale.shipment_address:
return redirect(url_for('nereid.checkout.shipping_address'))
if not cart_sale.package_weight:
# No weight, no shipping. Have fun !
return redirect(url_for('nereid.checkout.payment_method'))
if request.method == 'POST' and \
request.form.get('shipping_service_data'):
try:
shipping_service_data = signer.loads(
request.form.get('shipping_service_data'))
except BadSignature:
abort(400)
Sale.write([cart_sale], shipping_service_data)
cart_sale.apply_shipping()
return redirect(url_for('nereid.checkout.payment_method'))
shipping_overweight = False
delivery_rates = []
with Transaction().set_context(sale=cart_sale.id):
try:
delivery_rates = Carrier.get_rate_list()
except UserError, e:
# Possible Errors: Overweighted shipment, Invalid address
# TODO: Handle gracefully
flash(e.message)
return redirect(url_for('nereid.checkout.shipping_address'))
