def save_configuration(self, save_dir, name, changed_params):
"""Delegate configuration saving to model.
Parameters
----------
save_dir : str
The directory to save the configuration information to.
name : str
Name of the configuration to save.
changed_params : dict
The set of changed information.
"""
if len(changed_params) and self.extra_props_dir is not None:
prop_file = os.path.join(self.extra_props_dir,
filename_from_proposal_name(name))
if os.path.exists(prop_file):
copy_loc = os.path.join(save_dir, NEW_PROPS_DIR)
if not os.path.exists(copy_loc):
os.makedirs(copy_loc)
shutil.copy(prop_file, copy_loc)
BaseController.save_configuration(self, save_dir, name, changed_params)
