def get_next(cls, role, action, order_c_state, c_state):
try:
order_state_to_match = state_machine_match_regex(order_c_state)
osm = cls.objects.get(
operator_role=role,
action=action,
order_current_state__regex=order_state_to_match,
current_state=c_state,
)
return osm.next_state, osm.post_action
except MultipleObjectsReturned, mor:
# TODO:make a custom exception
raise Exception("Multiple states returned!")
def get_role_actions(cls, order_c_state, c_state):
"""Get which roles can do what actions when the order and item are in certain states
"""
order_state_to_match = state_machine_match_regex(order_c_state)
osms = cls.objects.filter(order_current_state__regex=order_state_to_match, current_state=c_state).values_list(
"operator_role", "action"
)
roles = list(set([osm[0] for osm in osms]))
role_actions = {}
for r in roles:
role_actions[r] = []
for s in osms:
if s[0] == r:
if s[1] not in role_actions[r]:
role_actions[r].append(s[1])
return role_actions