| public validateEarlierOrEqualDate ( $attribute, $params ) | ||
| $attribute | - the element attribute that must be an earlier date | |
| $params | - 'later_date' is the attribute to compare it with | |
public function validateEarlierOrEqualDate($attribute, $params)
{
$later_date = $params['later_date'];
if ($this->{$attribute} && $this->{$later_date} && $this->{$attribute} > $this->{$later_date}) {
$this->addError($attribute, $this->getAttributeLabel($attribute) . ' must be equal to or before ' . $this->getAttributeLabel($later_date));
}
}