def connect_signal(signal, listener, *args, **kw):
"""helper function for connecting django signals to listeners with
a simple check to avoid it to happen when running tests.
Use where you would use signal.connect.
For example, instead of doing:
>>> from deal.models import Deal
>>> from django.db.models.signals import post_save
>>> def my_listener(sender, instance, **kw):
... redis.sadd('yipit:deals', instance.id)
...
>>> post_save.connect(my_listener, sender=Deal)
you should rather use:
>>> import truck
>>> truck.connect_signal(post_save, my_listener, sender=Deal)
It will protect the listener to be triggered, for instance, within
unit and functional tests
"""
if LISTENERS_OFF_BY_DEFAULT:
signal_registry.append((signal, listener, args, kw))
# never connect signals in tests
return
return signal.connect(listener, *args, **kw)
def connect_signal(signal, listener, *args, **kw):
"""helper function for connecting django signals to listeners with
a simple check to avoid it to happen when running tests.
Use where you would use signal.connect.
For example, instead of doing:
>>> from deal.models import Deal
>>> from django.db.models.signals import post_save
>>> def my_listener(sender, instance, **kw):
... redis.sadd('yipit:deals', instance.id)
...
>>> post_save.connect(my_listener, sender=Deal)
you should rather use:
>>> import truck
>>> truck.connect_signal(post_save, my_listener, sender=Deal)
It will protect the listener to be triggered, for instance, within
unit and functional tests
"""
if LISTENERS_OFF_BY_DEFAULT:
signal_registry.append((signal, listener, args, kw))
# never connect signals in tests
return
return signal.connect(listener, *args, **kw)
def wrapper(function):
if 'sender' in kw:
raise TypeError(
"Listeners to custom signals should not specify sender. {}, line: {}"
.format(function.func_code.co_filename,
function.func_code.co_firstlineno))
if not LISTENERS_OFF_BY_DEFAULT:
connected = signal_receiver(signal, *args, **kw)
return connected(function)
else:
signal_registry.append((signal, function, args, kw))
return function
def wrapper(function):
if 'sender' in kw:
raise TypeError(
"Listeners to custom signals should not specify sender. {}, line: {}".format(
function.func_code.co_filename, function.func_code.co_firstlineno
)
)
if not LISTENERS_OFF_BY_DEFAULT:
connected = signal_receiver(signal, *args, **kw)
return connected(function)
else:
signal_registry.append((signal, function, args, kw))
return function
