def validate_fields(command_context, param, value):
valid = Display.valid_fields()
possible = value.split(',') if value else []
for field in possible:
if field not in valid:
raise click.BadParameter(
f'Field {field} is not a valid field! Use {",".join(valid)}')
return possible
def validate_sort(command_context, param, value):
if value and value not in Display.valid_fields():
raise click.BadParameter(
f'Sort parameter {value} is not a valid field!')
return value