2amigos/yii2-usuario

My "administrator migration" file:
<?php

use yii\db\Migration;

/**

• Class m201202_021321_add_admin_user_and_role
  /
  class m201202_021321_add_admin_user_and_role extends Migration
  {
  /*

  • {@inheritdoc}
    */
    public function safeUp()
    {
    $auth = Yii::$app->authManager;

    // create a role named "administrator"
    $administratorRole = $auth->createRole('administrator');
    $administratorRole->description = 'Administrator';
    $auth->add($administratorRole);

    // create permission for certain tasks
    $permission = $auth->createPermission('user-management');
    $permission->description = 'User Management';
    $auth->add($permission);

    // let administrators do user management
    $auth->addChild($administratorRole, $auth->getPermission('user-management'));

    // create user "admin" with password "verysecret"
    $user = new \Da\User\Model\User([

     'scenario' => 'create',
     'email' => "email@example.com",
     'username' => "admin",
     'password' => "verysecret"  // >6 characters!

    ]);
    $user->confirmed_at = time();
    $user->save();

    // assign role to our admin-user
    $auth->assign($administratorRole, $user->id);
    }

    /**

  • {@inheritdoc}
    */
    public function safeDown()
    {
    $auth = Yii::$app->authManager;

    // delete permission
    $auth->remove($auth->getPermission('user-management'));

    // delete admin-user and administrator role
    $administratorRole = $auth->getRole("administrator");
    $user = \Da\User\Model\User::findOne(['name'=>"admin"]);
    $auth->revoke($administratorRole, $user->id);
    $user->delete();
    $auth->remove($administratorRole);
    }

    /*
    // Use up()/down() to run migration code without a transaction.
    public function up()
    {

    }

    public function down()
    {
    echo "m201202_021321_add_admin_user_and_role cannot be reverted.\n";

    return false;
    }
    */
    }