How does the getIsAdmin function work?

Question

Yii

Met in dektrium/yii2-user code

public function getIsAdmin()
    {
        return in_array($this->username, $this->module->admins);
    }

they say that there is some kind of superuser field, but it is not in the database.

Answer 1

Nevertheless, the documentation is, initially it is assumed that you will enter an array in the settings in the web.php of the module.
https://github.com/dektrium/yii2-user/blob/master/... (admins)
https://github.com/dektrium/yii2-user/blob/master/...
But sometimes it's more convenient rewrite the rules for accessing the adminController controller of this module in order to distribute rights more flexibly, based on your RBAC system.