Codeigniter 4 V 4.5.1 $this->db problem

it is correct to use:

PHP Code:

parent::__construct();  


in the model construct?

Of course not. It is incorrect. It makes Model not working.

CodeIgniter is build on PHP. It is difficult to use it without knowing how PHP works.

ci-phpunit-test | CodeIgniter Testing Guide | CodeIgniter 3 to 4 Upgrade Helper