def create_group(self, name, app=None, enabled=True):
""" Creates a child group
:param name: name of group
:param app: name of app the group belongs to. If not set will be
the group's parent's app.
:param enabled: (optional) if group is enabled
:type enabled: bool
"""
if name in self.groups:
return self.groups[name]
if app is None:
if self.app is None:
raise OrphanedMatchableGroupError(
"Top-level group '%s' must have an app declared in "
"create_group()" % name)
app = self.app
elif apps.valid(app) is False:
raise AppNotFound("Unable to find app named '%s'" % app)
if self.__class__ in (TriggerMasterGroup, TriggerGroup):
klass = TriggerGroup
else:
klass = AliasGroup
self.groups[name] = klass(name, self, app, enabled)
return self.groups[name]
def __init__(self, name, parent, app, enabled=True):
self.name = name
self.parent = weakref.ref(parent)
self.app = app
self.enabled = enabled
self.groups = {}
self.matchables = {}
if apps.valid(app) is False:
raise AppNotFound("Unable to find app named '%s'" % app)
apps.add_group(app, self)
