/**
* Validates a single attribute.
* This method should be overridden by child classes.
* @param CModel $object the data object being validated
* @param string $attribute the name of the attribute to be validated.
*/
protected function validateAttribute($object, $attribute)
{
$value = $object->{$attribute};
$xml = false;
if ($this->useCache && !empty(self::$filesCache[$value])) {
$xmlFile = self::$filesCache[$value];
} else {
$xmlFile = tempnam(Yii::app()->getRuntimePath(), 'xml');
try {
CurlHelper::downloadToFile($value, $xmlFile);
self::$filesCache[$value] = $xmlFile;
} catch (Exception $e) {
}
}
if (file_exists($xmlFile)) {
$xml = @simplexml_load_file($xmlFile);
}
if ($xml === false) {
$message = $this->message !== null ? $this->message : Yii::t('ValidXml.app', '{attribute} doesn\'t contain valid XML.');
$this->addError($object, $attribute, $message);
}
}
