def change_state(self, instance, method, *args, **kwargs):
meta = method._django_fsm
method_name = method.__name__
current_state = self.get_state(instance)
if not (meta.has_transition(current_state) and meta.conditions_met(instance, current_state)):
raise TransitionNotAllowed(
"Can't switch from state '{}' using method '{}'".format(current_state, method_name))
next_state = meta.next_state(current_state)
signal_kwargs = {
'sender': instance.__class__,
'instance': instance,
'name': method_name,
'source': current_state,
'target': next_state
}
pre_transition.send(**signal_kwargs)
result = method(instance, *args, **kwargs)
if next_state:
self.set_proxy(instance, next_state)
self.set_state(instance, next_state)
post_transition.send(**signal_kwargs)
return result
def change_state(self, instance, method, *args, **kwargs):
meta = method._django_fsm
method_name = method.__name__
current_state = self.get_state(instance)
if not (meta.has_transition(current_state)
and meta.conditions_met(instance, current_state)):
raise TransitionNotAllowed(
"Can't switch from state '{}' using method '{}'".format(
current_state, method_name))
next_state = meta.next_state(current_state)
signal_kwargs = {
'sender': instance.__class__,
'instance': instance,
'name': method_name,
'source': current_state,
'target': next_state
}
pre_transition.send(**signal_kwargs)
result = method(instance, *args, **kwargs)
if next_state:
self.set_state(instance, next_state)
post_transition.send(**signal_kwargs)
return result
def _change_state(instance, *args, **kwargs):
meta = func._django_fsm
if not (meta.has_transition(instance) and meta.conditions_met(instance)):
raise TransitionNotAllowed("Can't switch from state '%s' using method '%s'" % (meta.current_state(instance), func.func_name))
source_state = meta.current_state(instance)
pre_transition.send(
sender = instance.__class__,
instance = instance,
name = func.func_name,
source = source_state,
target = meta.next_state(instance))
result = func(instance, *args, **kwargs)
meta.to_next_state(instance)
if save:
instance.save()
post_transition.send(
sender = instance.__class__,
instance = instance,
name = func.func_name,
source = source_state,
target = meta.current_state(instance))
return result
def _change_state(instance, *args, **kwargs):
meta = func._django_fsm
if not (meta.has_transition(instance)
and meta.conditions_met(instance)):
raise TransitionNotAllowed(
"Can't switch from state '%s' using method '%s'" %
(meta.current_state(instance), func.__name__))
source_state = meta.current_state(instance)
pre_transition.send(sender=instance.__class__,
instance=instance,
name=func.__name__,
source=source_state,
target=meta.next_state(instance))
result = func(instance, *args, **kwargs)
meta.to_next_state(instance)
if save:
instance.save()
post_transition.send(sender=instance.__class__,
instance=instance,
name=func.__name__,
source=source_state,
target=meta.current_state(instance))
return result
def change_state(self, instance, method, *args, **kwargs):
meta = method._django_fsm
method_name = method.__name__
current_state = self.get_state(instance)
if not (meta.has_transition(current_state) and meta.conditions_met(instance, current_state)):
raise TransitionNotAllowed(
"Can't switch from state '{}' using method '{}'".format(current_state, method_name))
next_state = meta.next_state(current_state)
pre_transition.send(
sender=instance.__class__,
instance=instance,
name=method_name,
source=current_state,
target=next_state)
result = method(instance, *args, **kwargs)
if next_state:
self.set_state(instance, next_state)
post_transition.send(
sender=instance.__class__,
instance=instance,
name=method_name,
source=current_state,
target=next_state)
return result
def _change_state(instance, *args, **kwargs):
meta = func._django_fsm
if not (meta.has_transition(instance) and meta.conditions_met(instance)):
raise TransitionNotAllowed("Can't switch from state '%s' using method '%s'" % (meta.current_state(instance), func.func_name))
fieldname = field or meta._get_state_field(instance).name
source_state = meta.current_state(instance)
pre_transition.send(
sender = instance.__class__,
instance = instance,
name = func.func_name,
source = source_state,
field = fieldname,
target = meta.next_state(instance))
result = func(instance, *args, **kwargs)
meta.to_next_state(instance)
if save:
instance.save()
post_transition.send(
sender = instance.__class__,
instance = instance,
name = func.func_name,
source = source_state,
field = fieldname,
target = meta.current_state(instance))
if save and hasattr(instance, '_django_fsm_audits'):
# The audit logs are created during `post_transition`
for audit in instance._django_fsm_audits:
audit.save()
return result
def change_state(self, instance, method, *args, **kwargs):
meta = method._django_fsm
method_name = method.__name__
current_state = self.get_state(instance)
if not meta.has_transition(current_state):
raise TransitionNotAllowed(
"Can't switch from state '{0}' using method '{1}'".format(current_state, method_name),
object=instance,
method=method,
)
if not meta.conditions_met(instance, current_state):
raise TransitionNotAllowed(
"Transition conditions have not been met for method '{0}'".format(method_name),
object=instance,
method=method,
)
next_state = meta.next_state(current_state)
signal_kwargs = {
'sender': instance.__class__,
'instance': instance,
'name': method_name,
'field': meta.field,
'source': current_state,
'target': next_state,
'method_args': args,
'method_kwargs': kwargs,
}
pre_transition.send(**signal_kwargs)
# Add states to func kwargs
kwargs['fsm_current_state'] = current_state
kwargs['fsm_next_state'] = next_state
try:
result = method(instance, *args, **kwargs)
if next_state is not None:
if hasattr(next_state, 'get_state'):
next_state = next_state.get_state(instance, transition, result, args=args, kwargs=kwargs)
signal_kwargs['target'] = next_state
self.set_proxy(instance, next_state)
self.set_state(instance, next_state)
except Exception as exc:
exception_state = meta.exception_state(current_state)
if exception_state:
self.set_proxy(instance, exception_state)
self.set_state(instance, exception_state)
signal_kwargs['target'] = exception_state
signal_kwargs['exception'] = exc
post_transition.send(**signal_kwargs)
raise
else:
post_transition.send(**signal_kwargs)
return result
def change_state(self, instance, method, *args, **kwargs):
meta = method._django_fsm
method_name = method.__name__
current_state = self.get_state(instance)
if not meta.has_transition(current_state):
raise TransitionNotAllowed(
"Can't switch from state '{0}' using method '{1}'".format(current_state, method_name),
object=instance, method=method)
if not meta.conditions_met(instance, current_state):
raise TransitionNotAllowed(
"Transition conditions have not been met for method '{0}'".format(method_name),
object=instance, method=method)
next_state = meta.next_state(current_state)
signal_kwargs = {
'sender': instance.__class__,
'instance': instance,
'name': method_name,
'field': meta.field,
'source': current_state,
'target': next_state,
'method_args': args,
'method_kwargs': kwargs
}
pre_transition.send(**signal_kwargs)
try:
result = method(instance, *args, **kwargs)
if next_state is not None:
if hasattr(next_state, 'get_state'):
next_state = next_state.get_state(
instance, transition, result,
args=args, kwargs=kwargs)
signal_kwargs['target'] = next_state
self.set_proxy(instance, next_state)
self.set_state(instance, next_state)
except Exception as exc:
exception_state = meta.exception_state(current_state)
if exception_state:
self.set_proxy(instance, exception_state)
self.set_state(instance, exception_state)
signal_kwargs['target'] = exception_state
signal_kwargs['exception'] = exc
post_transition.send(**signal_kwargs)
raise
else:
post_transition.send(**signal_kwargs)
return result
def change_state(self, instance, method, *args, **kwargs):
meta = method._django_fsm
method_name = method.__name__
current_state = self.get_state(instance)
if not meta.has_transition(current_state):
raise TransitionNotAllowed(
"Can't switch from state '{0}' using method '{1}'".format(current_state, method_name),
object=instance,
method=method,
)
if not meta.conditions_met(instance, current_state):
raise TransitionNotAllowed(
"Transition conditions have not been met for method '{0}'".format(method_name),
object=instance,
method=method,
)
next_state = meta.next_state(current_state)
signal_kwargs = {
"sender": instance.__class__,
"instance": instance,
"name": method_name,
"source": current_state,
"target": next_state,
}
pre_transition.send(**signal_kwargs)
try:
result = method(instance, *args, **kwargs)
if next_state is not None:
self.set_proxy(instance, next_state)
self.set_state(instance, next_state)
except Exception as exc:
exception_state = meta.exception_state(current_state)
if exception_state:
self.set_proxy(instance, exception_state)
self.set_state(instance, exception_state)
signal_kwargs["target"] = exception_state
signal_kwargs["exception"] = exc
post_transition.send(**signal_kwargs)
raise
else:
post_transition.send(**signal_kwargs)
return result
def change_state(self, instance, method, *args, **kwargs):
meta = method._django_fsm
method_name = method.__name__
current_state = self.get_state(instance)
if not meta.has_transition(current_state):
raise TransitionNotAllowed(
"Can't switch from state '{0}' using method '{1}'".format(
current_state, method_name))
if not meta.conditions_met(instance, current_state):
raise TransitionNotAllowed(
"Transition conditions have not been met for method '{0}'".
format(method_name))
next_state = meta.next_state(current_state)
signal_kwargs = {
'sender': instance.__class__,
'instance': instance,
'name': method_name,
'source': current_state,
'target': next_state
}
pre_transition.send(**signal_kwargs)
try:
result = method(instance, *args, **kwargs)
if next_state is not None:
self.set_proxy(instance, next_state)
self.set_state(instance, next_state)
except Exception as exc:
exception_state = meta.exception_state(current_state)
if exception_state:
self.set_proxy(instance, exception_state)
self.set_state(instance, exception_state)
signal_kwargs['target'] = exception_state
signal_kwargs['exception'] = exc
post_transition.send(**signal_kwargs)
raise
else:
post_transition.send(**signal_kwargs)
return result
def change_state(self, instance, method, *args, **kwargs):
meta = method._django_fsm
method_name = method.__name__
current_state = self.get_state(instance)
if not meta.has_transition(current_state):
raise TransitionNotAllowed(
"Can't switch from state '{0}' using method '{1}'".format(current_state, method_name))
if not meta.conditions_met(instance, current_state):
raise TransitionNotAllowed(
"Transition conditions have not been met for method '{0}'".format(method_name))
next_state = meta.next_state(current_state)
signal_kwargs = {
'sender': instance.__class__,
'instance': instance,
'name': method_name,
'source': current_state,
'target': next_state
}
signal_kwargs.update(**kwargs)
pre_transition.send(**signal_kwargs)
try:
result = method(instance, *args, **kwargs)
if next_state:
self.set_proxy(instance, next_state)
self.set_state(instance, next_state)
except Exception as exc:
exception_state = meta.exception_state(current_state)
if exception_state:
self.set_proxy(instance, exception_state)
self.set_state(instance, exception_state)
signal_kwargs['target'] = exception_state
signal_kwargs['exception'] = exc
post_transition.send(**signal_kwargs)
raise
else:
post_transition.send(**signal_kwargs)
return result
def change_state(self, instance, method, *args, **kwargs):
meta = method._django_fsm
method_name = method.__name__
current_state = self.get_state(instance)
if not meta.has_transition(current_state):
raise TransitionNotAllowed(
"Can't switch from state '{0}' using method '{1}'".format(
current_state, method_name),
object=instance,
method=method)
if not meta.conditions_met(instance, current_state):
raise TransitionNotAllowed(
"Transition conditions have not been met for method '{0}'".
format(method_name),
object=instance,
method=method)
next_state = meta.next_state(current_state)
signal_kwargs = {
'sender': instance.__class__,
'instance': instance,
'name': method_name,
'field': meta.field,
'source': current_state,
'target': next_state,
'method_args': args,
'method_kwargs': kwargs
}
pre_transition.send(**signal_kwargs)
try:
result = method(instance, *args, **kwargs)
if next_state is not None:
if hasattr(next_state, 'get_state'):
next_state = next_state.get_state(instance,
transition,
result,
args=args,
kwargs=kwargs)
signal_kwargs['target'] = next_state
self.set_proxy(instance, next_state)
self.set_state(instance, next_state)
except Exception as exc:
exception_state = meta.exception_state(current_state)
transition_error = FSMTransitionError(exc)
if exception_state:
result = None
with transaction.atomic():
self.set_proxy(instance, exception_state)
self.set_state(instance, exception_state)
setattr(instance, '__django_fsm_log_attr_description',
str(transition_error))
instance.save(force_update=True)
signal_kwargs['target'] = exception_state
signal_kwargs['exception'] = exc
post_transition.send(**signal_kwargs)
def _raise():
raise transition_error
transaction.on_commit(_raise)
else:
raise transition_error
else:
post_transition.send(**signal_kwargs)
return result
