将Ci控制器传递给视图

Question

How would I call a controller inside the view? When I use the code below, I'm limited with Html and CSS formatting. I could use jQuery JSON, but that's added work. Any ideas?

<?php
class home extends CI_Controller {
    function __construct() {
        parent::__construct();
    }
    function displayList() {
        $query = $this->db->query("SELECT * FROM data");
        foreach ($query->result() as $row) {
            echo $row->title . "<br>";
            echo $row->text;
        }
    }
    function index() {
        $this->load->view('home');
        $data['lists'] = $this->displayList();
    }
}
?>

Answer 1

You don't call the controller in the view. You pass the data from the controller to the view.

Like this:

function index() {
    $data = array();
    $data['lists'] = $this->displayList();
    $this->load->view('home', $data);
}

Now in your home view, $lists will be the value of displayList().

Also, displayList is echoing out the data, not returning it so $data['lists'] will be blank. You should return the string, so the view can echo it.

function displayList() {
    $str = ''
    $query = $this->db->query("SELECT * FROM data");
    foreach ($query->result() as $row) {
        $str .= $row->title . "<br>" . $row->text;
    }
    return $str;
}

P.S. I usually put DB queries into a model, and have the controller call them.