def save(self, path):
"""
Saves state to a file. Overrides the base method.
Hides internal observable attributes when serializing.
"""
attributes = self.remove_unserializable_attributes()
Model.save(self, path)
self.restore_unserializable_attributes(attributes)
def instance(path):
"""Override Model.instance() to account for unserializable data."""
obj = Model.instance(path)
if isinstance(obj, ObservableModel):
# This ensures that clones always start out with no observers,
# but retain the hidden _unserializable_attributes.
unserializable_copy = copy.deepcopy(_unserializable_attributes)
obj.restore_unserializable_attributes(unserializable_copy)
return obj
def clone(self):
"""Override Model.clone() to handle observers"""
# Go in and out of jsonpickle to create a clone
attributes = self.remove_unserializable_attributes()
clone = Model.clone(self)
unserializable_copy = copy.deepcopy(_unserializable_attributes)
self.restore_unserializable_attributes(attributes)
clone.restore_unserializable_attributes(unserializable_copy)
return clone
def set_param(self, param, value, notify=True):
"""Override Model.set_param() to handle notification"""
Model.set_param(self, param, value)
# Perform notifications
if notify:
self.notify_observers(param)
def __init__(self):
Model.__init__(self)
Observable.__init__(self)