can't write session on controller issue on 2.0.15.1

[ash-rwt]

So, I upgraded Yii Framework from version 2.0.12 to 2.0.15.1 and now i am facing session writing issue which was working fine on 2.0.12.
For example -
$session = \Yii::$app->session;
$session['filter'] = [
'filter_dealer' => 4,
];

Doesn't work which was working fine before i upgraded framework.
Permissions are correct. Also, tried to switching session from memcached to filecache and vice versa but didn't work.

UPDATE :
Its issue with yii\web\DbSession. Works fine with default yii\web\CacheSession

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[samdark]

How's your session configured?

[ash-rwt]

Session are configured to be write on database ('session' table by default). *Update -* It does write custom session to database but just can't retrieve it. Check the attached screenshot! I tried to write 'filter' session by ajax call but i cannot able to retrieve it on view and not on any other page after it redirect or refresh it. It works fine if i roll back yii framework to old version. Let me know, if attached screenshot make sense to you or not. *Thanks,* *Ashish Rawat*

On Tue, Dec 11, 2018 at 2:59 PM Alexander Makarov ***@***.***> wrote: How's your session configured? — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#16959 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/ACFOh7bQ-GwROfc3suOuULUFLpnIhJUCks5u33rxgaJpZM4ZMQMf> .

   

[samdark]

Which database is used?

[ash-rwt]

Mysql

[samdark]

Anything in logs?

[machour]

@ashishrawat417 anything new about this issue? We'd like to sort this out before releasing 2.0.16.
Thank you!

[schmunk42]

@ashishrawat417 Do you have multiple requests (eg. AJAX) which might overwrite their session data?

[talentant]

Hi guys, I may have found this bug...

commit: d165863

code line: https://github.com/yiisoft/yii2/blob/master/framework/web/DbSession.php#L224

---

is_array($fields['data'] && is_object($fields['data']))

it will always return false

[talentant]

And I think the method DbSession::typecastFields should be tested by unit tests.

    /**
     * Method typecasts $fields before passing them to PDO.
     * Default implementation casts field `data` to `\PDO::PARAM_LOB`.
     * You can override this method in case you need special type casting.
     *
     * @param array $fields Fields, that will be passed to PDO. Key - name, Value - value
     * @return array
     * @since 2.0.13
     */
    protected function typecastFields($fields)
    {
        ...

        return $fields;
    }

[samdark]

@SilverFire would you please take a look?

[SilverFire]

@talentant thank you, the condition was obviously broken. I've fixed it and added test that checks that session override works, but it works even before my fix in DbSession.

@ashishrawat417 could you, please, check if patched worked for you and adjust test if it still does not work for you?

[samdark]

Closing assuming it's fixed now.

[samdark]

@ashishrawat417 please checking when you have a chance.