/**
* A validation function that returns an error if the value passed is not within a specified range
*
* @param string $value A value to test if it is empty
* @param FormControl $control The control that defines the value
* @param FormContainer $container The container that holds the control
* @param float $min The minimum value, inclusive
* @param float $max The maximum value, inclusive
* @param string $warning An optional error message
* @return array An empty array if the value is value, or an array with strings describing the errors
*/
public static function validate_range($value, $control, $container, $min, $max, $warning = null)
{
if ($value < $min) {
if ($warning == null) {
$warning = _t('The value entered for %s is lesser than the minimum of %d.', array($control->get_label(), $min));
}
return array($warning);
} elseif ($value > $max) {
if ($warning == null) {
$warning = _t('The value entered for %s is greater than the maximum of %d.', array($control->get_label(), $max));
}
return array($warning);
} else {
return array();
}
}
