How to get users of a specefic role in Yii2 and DbManager?

Question

How to get users of a specefic role in Yii2 and DbManager in RBAC?

Please introduce some API for user management and role management.

I searched and read Yii2 guide but I didn't find any solution.

Answer 1

Since Yii version 2.0.7, DbManager and ManagerInterface which it implements have getUserIdsByRole($roleName) which does what you want without custom code.

Answer 2

I wrote this function which can be added to an User class.

 /**
 * Finds all users by assignment role
 *
 * @param  \yii\rbac\Role $role
 * @return static|null
 */
public static function findByRole($role)
{
    return static::find()
        ->join('LEFT JOIN','auth_assignment','auth_assignment.user_id = id')
        ->where(['auth_assignment.item_name' => $role->name])
        ->all();
}