def boolean_or_string(self, value):
if not value:
raise validate.VdtMissingValue('No value for this option')
try:
caster = self.validator.functions.get('boolean')
return caster(value)
except validate.VdtTypeError:
return value
def force_string(value):
if not value:
raise validate.VdtMissingValue('No value for this option')
if not isinstance(value, list):
return str(value)
return ','.join(value)
def string_lower_list(value):
if not value:
raise validate.VdtMissingValue('No value for this option')
if not isinstance(value, list):
return [str(value).lower()]
return [str(x).lower() for x in value]