protected function doClean($values)
{
if (null === $values) {
$values = array();
}
if (!is_array($values)) {
throw new InvalidArgumentException('You must pass an array parameter to the clean() method');
}
$leftValueSet = $this->_isValueSet($values, $this->getOption('left_field'));
$rightValueSet = $this->_isValueSet($values, $this->getOption('right_field'));
$skipIfBothEmpty = $this->getOption('skip_if_both_empty');
$skipIfOneEmpty = $this->getOption('skip_if_one_empty');
$skip = false;
if ($skipIfOneEmpty && (!$leftValueSet || !$rightValueSet)) {
$skip = true;
} else {
if ($skipIfBothEmpty && !$leftValueSet && !$rightValueSet) {
$skip = true;
}
}
return $skip ? $values : parent::doClean($values);
}
