Question

I want use right MVC concept. So, say in model we have for example query to DB

    class my_model {

        public function getUserData () {
            $res = $this->db->query("
                SELECT name, lastname, age, mail FROM users
            ");

            return $res;
        }

    }

What I do: I pass mysqli_result object to view and after in view in while cycle I print data from DB.

But as I know, pass mysqli_result to view, isn’t right MVC.

So, can you show me, what is right MVC solution, in situations like this ?

Answer 1

In MVC, the view would request the data from the model directly and would not be passed data by anything. The view has a dependency on the model and requests its own data. See this answer: How is MVC supposed to work in CodeIgniter for a more detailed description on why this is so.

The answer is to initialise the view after the model and pass the view the entire model in the constructor.

e.g.

class View {
    private $model;

    public function __construct(my_model $model) {
        $this->model = $model;
    }

    public function output() {
        $html = '<ul>';
        foreach ($this->model->getUserData() as $row) {
            $html .= '<li>' . $row->name . '</li>';
        }
        $html .= '</ul>';
        return $html;       
    }
}