class EventHandler(processing.EventHandler):
def handle_shipping_event(self, order, event_type, lines, line_quantities,
**kwargs):
changes = False
new_status = event_type.name
try:
if order.status != new_status:
changes = True
order.set_status(new_status)
for line in lines:
if line.status != new_status:
changes = True
line.set_status(new_status)
except (InvalidOrderStatus, InvalidLineStatus), e:
raise InvalidShippingEvent(str(e))
if not changes:
raise InvalidShippingEvent(
'The select order lines are already marked as %s' % new_status)
super(EventHandler,
self).handle_shipping_event(order, event_type, lines,
line_quantities, **kwargs)
if event_type.name == 'Shipped':
EmailTemplate.send('order_shipped', [order.email],
order=order,
lines=lines)
def _check_previous_events_are_complete(self):
"""
Checks whether previous shipping events have passed
"""
# Quantity of the proposd event must have occurred for
# the previous events in the sequence.
previous_event_types = self.event.event_type.get_prerequisites()
for event_type in previous_event_types:
quantity = ShippingEventQuantity._default_manager.filter(
line=self.line,
event__event_type=event_type).aggregate(Sum('quantity'))['quantity__sum']
if quantity is None or quantity < int(self.quantity):
raise InvalidShippingEvent("This shipping event is not permitted")
def handle_shipping_event(self, order, event_type, lines, line_quantities,
**kwargs):
changes = False
new_status = event_type.name
try:
if order.status != new_status:
changes = True
order.set_status(new_status)
for line in lines:
if line.status != new_status:
changes = True
line.set_status(new_status)
except (InvalidOrderStatus, InvalidLineStatus), e:
raise InvalidShippingEvent(str(e))