/**
* Creates a property mapping object which contains the
* configuration for the specified uploadable field.
*
* @param object $obj The object.
* @param string $field The field.
* @return null|PropertyMapping The property mapping.
*/
public function fromField($obj, $field)
{
$class = $this->adapter->getReflectionClass($obj);
$this->checkUploadable($class);
$annot = $this->driver->readUploadableField($class, $field);
if (null === $annot) {
return null;
}
return $this->createMapping($obj, $annot);
}
