[eluser]kirrie[/eluser]
application/libraries/MY_Model.php
Code:
class MY_Model extends Model{
var $model = "";
function MY_Model(){
parent::Model();
}
function foo(){
return $this->db->get($this->model);
}
}
application/models/User_Model.php
Code:
class User_Model extends MY_Model{
var $model = "users";
function User_Model(){
parent::MY_Model();
}
}
application/controllers/User.php
Code:
class User extends Controller{
function User(){
parent::Controller();
}
function index(){
$this->load->model("user_model", "user");
$this->user->foo();
}
}
What I expect:
1. When user controller runs index() method, controller loads user model.
2. When user_model is loading, it extends MY_Model.
3. And MY_Model extends Model automatically.
4. Therefore I can get result records from "users" table.
What problem is:
1, 2, 3 look like ok.
When CI tries to execute 4, it says like:
Code:
A PHP Error was encountered
Severity: Notice
Message: Undefined property: User_Model::$db
Filename: libraries/MY_Model.php
Line Number: 42
Fatal error: Call to a member function get() on a non-object in F:\xampplite\htdocs\forum\system\application\libraries\MY_Model.php on line 42
I think there is no database instance. But why? MY_Model extended Model exactly. :-?
Temporarily, I added some codes for loading database.
Code:
class MY_Model extends Model{
var $model = "";
function MY_Model(){
parent::Model();
//loading database;
$CI =& get_instance();
$CI->load->database();
$this->db =& $CI->db;
}
function foo(){
return $this->db->get($this->model);
}
}
How can I use database instance($this->db) in this expend core Model class without adding codes for loading database?
(Sorry for my poor english.)
