def get_query_from_yaml(config_path):
"""Creates a Query object from a yaml file found in config_path.
The Query object is created from the configuration found in the yaml file.
Filters objects are created from the yaml file aswell and are attached
to the Query.
:param config_path: Path to the configuration yaml file.
:return: A Query object along with the filters in the file, if found.
"""
try:
with open(config_path) as config_file:
yaml_contents = yaml.load(config_file)
except IOError:
sys.exit('The config.yaml path you provided, `{0}`, does not '
'lead to an existing file.'.format(config_path))
yaml_config = yaml_contents['query_config']
yaml_filters = yaml_contents['filters']
qc = QueryConfig.from_yaml(yaml_config)
filters = [Filter.from_yaml(yaml_filter) for yaml_filter in yaml_filters]
query = Query.from_config(qc)
query.attach_filters(filters)
return query
def get_query_from_args(args):
"""Creates a Query object from the CLI arguments.
Filter objects are created from the CLI argument and attached to the
Query object.
:param args: CLI arguments
:return: A Query object along with the created filters, if found.
"""
qc = QueryConfig.from_args(args)
filters = get_filters_from_args(args)
query = Query.from_config(qc)
query.attach_filters(filters)
return query