Yii2 change username on creation

Question

I want my app to detect when a username is already taken and change it. In fact, when the user register himself he enter his last and first name and the username is lastName.firstName. How do I detect the username is already taken and how to change it (add a number for example) ?

Thanks.

Yes that's right, the user enter his last name and his first name and the username is given by the app. — Samaël Villette, Apr 19 '16 at 07:38
Could you also share the code where app determines the username. — ck_arjun, Apr 19 '16 at 07:49

score 1 · Accepted Answer · answered Apr 19 '16 at 07:51

1

So you should override beforeValidate() function, bellow is my sample code:

/**
 * @inheritdoc
 */
public function beforeValidate()
{
    /** your code here **/

    $isExist = static::find()->where(['username' => $this->username])->count();

    if($isExist){
        //Count total rows with the similar username
        $total = static::find()->where(['LIKE','username', "{$this->username}%"])->count();
        //We will add $total + 1 to the username so we have new unique username
        $this->username .= '-' . ($total+1); 
    }

    return parent::beforeValidate();
}

answered Apr 19 '16 at 07:51

Jimmy Hoang

36
1
6

Thank you but I thought the validation was done in SignupForm model ? static::findOne() is in the user model right ? – Samaël Villette Apr 19 '16 at 07:55
Correct, add this in the User model file which extends from ActiveRecord – Jimmy Hoang Apr 19 '16 at 08:02

score 0 · Answer 2 · answered Apr 19 '16 at 07:31

0

What is the user module you use? Is it dektrium/yii2-user module?

We can override the user model class and override beforeValidate function to detect and change the username before save.

answered Apr 19 '16 at 07:31

Jimmy Hoang

36
1
6

Not I use the user basic model which extends Component in vendor/yiisoft/yii2/web/User – Samaël Villette Apr 19 '16 at 07:36
So you should override `beforeValidate` function. – Jimmy Hoang Apr 19 '16 at 07:49
Ok , I override the beforeValidate method but how can I detect the username is already taken ? – Samaël Villette Apr 19 '16 at 07:50
I posted another answer with my sample code: http://stackoverflow.com/a/36711943/2688756 – Jimmy Hoang Apr 19 '16 at 07:52

Yii2 change username on creation

2 Answers2