/**
* Automatically extracts and replaces the category, keywords and entities
* for a data object.
*
* @param DataObject $object
*/
public function alchemise(DataObject $object)
{
if (!$object->hasExtension('Alchemisable')) {
throw new Exception('The object must have the Alchemisable extension.');
}
$text = $object->getContentForAlchemy();
if (strlen($text) < $this->charLimit) {
return;
}
$alchemyInfo = $object->AlchemyMetadata->getValues();
if (!$alchemyInfo) {
$alchemyInfo = array();
}
$cat = $this->getCategoryFor($text);
$keywords = $this->getKeywordsFor($text);
$entities = $this->getEntitiesFor($text);
$alchemyInfo['Category'] = $cat;
$alchemyInfo['Keywords'] = $keywords;
$alchemyInfo['Entities'] = $entities;
$object->AlchemyMetadata = $alchemyInfo;
// foreach (Alchemisable::entity_fields() as $field => $name) {
// $name = substr($field, 3);
//
// if (array_key_exists($name, $entities)) {
// $object->$field = $entities[$name];
// } else {
// $object->$field = array();
// }
// }
}
