Yii CAdvancedArBehavior无法在加载后立即保存关系模型

Question

I got 2 models:

class Mail with relation:

'relAttachments' => array(self::MANY_MANY, 'File', 'rel_mail_file(rel_mail, rel_file)'),

Mail has the AdvancedArBehavior extension attached so i can link Attachments to it with a 1-liner, which i do like this:

$mail->relAttachments = $attachments; // $attachments is an array of ids for `File` models

class Mailque with relation:

'relMail' => array(self::BELONGS_TO, 'Mail', 'rel_mail'),

Once i saved and linked Mail and Mailque, i run this code after sending out the mail:

$mail = Mail::model()->findByPk($id);
$mailModel = $mail->relMail;

var_dump(count($mailModel->relAttachments));  // outputs 1

$mailModel->sent = time();
$mailModel->save();
//$mail->delete();

The call to save() yields the following error:

exception 'CException' with message 'Property "File.rel_file" is not defined.' in ...\framework\base\CComponent.php:131

Does anyone know what is going on here?

Answer 1

Look like you need to define a public variable in File model.

try this... in File class

public $rel_file = 'id';