How to organize manual adding of users in Yii2?

Question

Yii

Hello! Can you suggest how to organize manual adding of users!
I would like to have such a scheme.
With an empty user table, the first registered user received administrator rights, and then this user could create other users, but the standard registration should already be disabled so that no one can register on their own! Is this real?
Give a link or describe in words!

Answer 1

In the registration method, you check for the number of users. If = 0, then you allow to register with admin rights, if more, then you prohibit it. In the admin panel you do the usual crud according to the user model, where your first user (with admin rights) will be able to add/edit/delete other users.