/**
* Validate data
* Return true or array of errors
*
* @param array|string $value
* @return boolean|array
*/
public function validateValue($value)
{
$errors = array();
$attribute = $this->getAttribute();
if ($value === false) {
// try to load original value and validate it
$value = $this->getEntity()->getDataUsingMethod($attribute->getAttributeCode());
if (!is_array($value)) {
$value = explode("\n", $value);
}
}
for ($i = 0; $i < $attribute->getMultilineCount(); $i++) {
if (!isset($value[$i])) {
$value[$i] = null;
}
// validate first line
if ($i == 0) {
$result = parent::validateValue($value[$i]);
if ($result !== true) {
$errors = $result;
}
} else {
if (!empty($value[$i])) {
$result = parent::validateValue($value[$i]);
if ($result !== true) {
$errors = array_merge($errors, $result);
}
}
}
}
if (count($errors) == 0) {
return true;
}
return $errors;
}
/**
* Validate postal/zip code
* Return true and skip validation if country zip code is optional
*
* @param array|string $value
* @return boolean|array
*/
public function validateValue($value)
{
$countryId = $this->getExtractedData('country_id');
$optionalZip = Mage::helper('directory')->getCountriesWithOptionalZip();
if (!in_array($countryId, $optionalZip)) {
return parent::validateValue($value);
}
return true;
}
