/**
* Is Text?
*
* @param array $data Attachment data
* @return boolean True if attachment is text
*/
public function is_text($data = false)
{
if (!$data) {
$data = $this->data;
}
App::uses('MimeType', 'Model');
return MimeType::is_type('text', $this->data[$this->alias]['filename']);
}