Notice when saving a model introduced in 3.0.4

[terax6669]

Expected and Actual Behavior

Happens when trying to save empty string to a model.

Undefined index: column_name in phalcon/mvc/model.zep on line 2092

Provide minimal script to reproduce the issue

class a extends \Phalcon\Mvc\Model {

    public $column_name;
}

$a = new $a;
$a->column_name = '';
$a->save();

Details

• Phalcon version: 3.0.4 Powered by Zephir => Version 0.9.6a-dev-aef205594b
• PHP Version: PHP 7.0.16-3
• Operating System: Debian 8.7
• Installation type: https://packagecloud.io/phalcon/stable (3.0.4-2+extra)
• Server: Nginx
• Other related info (Database, table schema):
  PostgreSQL 9.6.0
  Column definition: column_name CHARACTER(3)

[Jurigag]

Yea i checked it and it's happening, will try to fix.

[sergeyklay]

Fixed in the 3.1.x branch.

[zGaron]

oops..