How to create entries in the database in Yii2 after registration?

Question

Yii

How in YII2, after the user has registered, create 10 records in another table?
here is the user registration script

<?php
/**
 * Created by PhpStorm.
 * User: User
 * Date: 23.04.2018
 * Time: 19:31
 */

namespace app\models;


use Yii;
use yii\base\Model;

class Signup extends Model
{public $username;
 public $email;
 public $password;
 public function rules()
 {
     return[
       [['email','username','password'],'required'],
         ['email', 'email'],
         ['password','string','min'=>2,'max'=>30]
     ];
 }
 public function signup()
 {
     $developer=new Developers();
     $developer->username=$this->username;
     $developer->email=$this->email;
     $developer->password=Yii::$app->getSecurity()->generatePasswordHash($this->password);
     return $developer->save();


 }
}

here are the fields for 2 tables

$model = new Product;
        $model->category_id='2';
        $model->author_id=$app->user->identity['id'];
        $model->name='name';
        $model->content='content';
        $model->price='0';
        $model->keywords='NULL';
        $model->description='NULL';
        $model->hit='0';
        $model->new='0';
        $model->save();

Answer 1

Dig towards events .

Answer 2

If events are complex, although this is a more correct solution, you can override the afterSave method in the Developers model.