Yii2: AttributeTypecastBehavior : Problem in save() method !

[ziaratban]

What steps will reproduce the problem?

i use typecast behavior in ActiveRecord class.

SQL

CREATE TABLE IF NOT EXISTS `test` (
`id` int(11) NOT NULL,
  `a` mediumint(8) unsigned DEFAULT NULL,
  `b` tinyint(4) unsigned NOT NULL
) ENGINE=InnoDB AUTO_INCREMENT=10000 DEFAULT CHARSET=utf8;

INSERT INTO `test` (`id`, `a`, `b`) VALUES
(1, 123, 1),
(9999, 1, 11);

ALTER TABLE `test`
ADD PRIMARY KEY (`id`);

Class Test

use yii;
use yii\behaviors\AttributeTypecastBehavior;

class Test extends yii\db\ActiveRecord{

    const TBL_NAME = 'test';

    public static function tableName(){
        return self::TBL_NAME;
    }

    public function behaviors(){
        return [
            'typecast' => [
                'class' => AttributeTypecastBehavior::className(),
                'attributeTypes' => [
                    'a' => AttributeTypecastBehavior::TYPE_INTEGER,
                    'b' => AttributeTypecastBehavior::TYPE_INTEGER,
                ],
                'typecastAfterFind' => true,
            ],
        ];
    }
}

Run

    public function actionIndex(){
        $obj = Test::find()->select('id,a')->one();
        $obj->a = rand(1,9999);
        $obj->save();
    }

Yii2 Query
UPDATE `test` SET `a`='860', `b`=NULL WHERE `id`=1

What is the expected result?

UPDATE `test` SET `a`='860' WHERE `id`=1

What do you get instead?

UPDATE `test` SET `a`='860', `b`=NULL WHERE `id`=1

Additional info

| Q | A
| ---------------- | ---
| Yii version | 2.0.10
| PHP version | 5.6.3
| Operating system | Win 8.1

[klimov-paul]

You should disable AttributeTypecastBehavior::$skipOnNull if you wish null values to be typecasted as well.

[ziaratban]

You should disable AttributeTypecastBehavior::$skipOnNull if you wish null values to be typecasted as well.

no, my problem not solving.
Please note, in my example (Run section), i selected id and a column but not selected b column.
so when changed a column value and call save() yii2 only must be save a column but a and b column both updated.
when i removed AttributeTypecastBehavior from my class Test and run this example, Yii2 only save a column.
in all section of project have a this problem.(after added this behavior)
this is a bug.

[klimov-paul]

You should remove b from attributeTypes then.

[ziaratban]

You should remove b from attributeTypes then.

i cant remove b from attributeTypes . the above example only is test but in my real project my id(pk) is int unsigned and more datatype in my project is unsigned and cant remove this columns.
if i use int(signed) , i not have a problem.
if i can't use attributeTypes with save() method, why i used this new feature in yii 2.0.10 ? :X(

[ziaratban]

i think find this problem in yii2.
http://www.yiiframework.com/doc-2.0/guide-db-active-record.html#dirty-attributes
please see

public function actionIndex(){
    $obj = Test::find()->select('id,a')->one();
    var_dump($obj->getDirtyAttributes()); # <--- array(2) { ["a"]=> int(2397) ["b"]=> NULL } 
    $obj->a = rand(1,9999);
    $obj->save();
}

seems getDirtyAttributes() method, does not work.

[klimov-paul]

Resolved by commit e7c080594d5d063397b76e413ee02a82ec690a62