Source code for safe.impact_functions.generic.utilities

# coding=utf-8
from safe.utilities.i18n import tr

__author__ = 'Rizky Maulana Nugraha "lucernae" <[email protected]>'
__date__ = '11/06/15'

[docs]def increasing_validator(parameters=None): """Custom validator to use with Group Parameter. Validator to make sure the threshold or input value of hazard classes is monotonically increasing :param parameters: the list of parameters to check FloatParameter :type parameters: list[FloatParameter] """ previous = None valid = True for p in parameters: if previous and p.value <= previous: valid = False break elif not previous: previous = p.value if not valid: message = tr( 'Each threshold should be greater than the previous ' 'threshold') raise ValueError(message)