So I'm getting the error: Undefined property: badge_progress::$bp_model.
I don't understand what's going on. Here is my code:
Controller:
<?php
// Badge Progress Module
class badge_progress extends CI_Controller
{
function __construct()
{
parent::__construct();
$this->load->model('bp_model');
$data['dotpoints'] = $this->bp_model->dotpoints('1');
$this->load->view('bp_view', $data);
}
}
?>
Model:
<?php
class bp_model extends CI_Model {
function dotpoints($badge_id) {
$query = $this->db->query("SELECT * FROM course_topic_dotpoints WHERE badge_id = ".$badge_id);
if ($query->num_rows() > 0) {
return $query->result();
}
}
}
?>
Ah fixed it! Didn't realise that the main controllers (controllers outside of the module directory) also needed to be extending "MX_Controller" instead of "CI_Controller".
Class names must begin with an uppercase letter.
class Badge_progress extends...
class Bp_model extends...
http://codeigniter.com/user_guide/general/controllers.html
http://codeigniter.com/user_guide/general/models.html
update:
You shouldn't have the logic you need as a function in your constructor. Create a separate function to process the dotpoints stuff.
<?php
// Badge Progress Module
class Badge_progress extends CI_Controller
{
function __construct()
{
parent::__construct();
$this->load->model('bp_model');
}
function dotpoints()
{
$data['dotpoints'] = $this->bp_model->dotpoints('1');
$this->load->view('bp_view', $data);
}
}
Also, you are missing the constructor in your model. Check out those links I posted earlier...
Related
1.models/calists.php // My model file
Model file here i get the category list from database to the controller
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
class Catlists extends CI_Model
{
public function __construct()
{
$this->load->database(); //load database
}
public function getCategories()
{
$query = $this->db->get_where('category',array('status'=>'Enable'));
if ($query->num_rows() > 0)
{
return $query->result();
}
else
{
return array();
}
}
}
?>
2.controllers/catlist.php // controller file
Controller to get the data from model
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
class Catlist extends CI_Controller
{
public function __construct()
{
parent::__construct();
$this->load->model('catlists');
}
public function catlist()
{
$data['catlist'] = $this->catlists->getCategories();
$this->load->view('home', $data);
}
}
In header am printng the categories list
print_r($data['catlist']);
I am not sure what error you are getting here, but when you are loading model in controller, first letter should be capital.
$this->load->model('Catlists');
$data['catlist'] = $this->Catlists->getCategories();
In header you have to call
print_r($catlist);
The file name must match the class name.
For example
if your class is this:
class User_model extends CI_Model {
function __construct()
{
parent::__construct();
}
}
Your file will be this:
application/models/User_model.php
Here in you case your model name is
models/Calists.php
So your model file be
Model Calists.php
class Calists extends CI_Model {
function __construct()
{
parent::__construct();
}
public function getCategories()
{
$query = $this->db->get_where('category',array('status'=>'Enable'));
if ($query->num_rows() > 0)
{
return $query->result();
}
else
{
return array();
}
}
}
And you call this model file in you controller like this
Controller
public function __construct()
{
parent::__construct();
$this->load->model('calists');
}
CodeIgniter anatomy of model.
I ham writing the follow Codeigniter code, but I keep getting a 404 error. Any thoughts?
funding_controller.php
class Funding extends CI_Controller {
function __construct()
{
// Call the Model constructor
parent::__construct();
}
public function index()
{
$this->load->model('funding_model');
$data['funds'] = $this->funding_model->getAll();
$this->load->view('funding_list', $data);
}
}
funding_model.php
class Funding extends CI_Model {
function __construct()
{
// Call the Model constructor
parent::__construct();
}
function getAll() {
$query = $this->db->get('funds');
return $query->result();
}
}
funding_list.php
foreach($funds as $row) {
echo $row->opportunity_name;
echo "<br />";
}
The default route points to funding_controller. Thoughts?
controller name and class name should be same and file name in lower case
funding.php
And try following url
http://domain.com/funding/index
Model class name different from controller name like funding_model or anything else and no need to suffix _model in ->load->model()
Use first letter in capital for controller n model file name.
For example:
Founding_controller.php
Founding_model.php
And class name should be filename (as it is).
The following is a working example of how my Codeigniter website currently functions:
Model:
<?php
class Default_model extends CI_Model
{
function __construct()
{
// Call the Model constructor
parent::__construct();
}
function get_link()
{
$query = $this->db->query('SELECT * FROM links LIMIT 5');
return $query->result();
}
Controller:
<?php
class Home extends CI_Controller {
public function index()
{
$this->load->model('segment1/Page_model');
$data['link'] = $this->Page_model->get_link();
$this->load->view('page_view', $data);
}
}
View:
<h2>Link</h2>
<ul>
<?php if (isset($link)):?>
<?php foreach ($link as $row):?>
<li><?=$row->link?></li>
<?php endforeach;?>
<?php endif;?>
</ul>
I want to begin using a base controller for the above example, and while I've followed a few online examples - I can't quite get it right, and I'd appreciate some guidance...
I autoload the Model, no problem
The View file remains
I alter the config.php file
Controller:
<?php
class Home extends Main_Controller {
public function index()
{
$this->load->model('segment1/Page_model');
$this->load->view('page_view', $data);
}
}
MY_Controller
<?php
class MY_Controller extends CI_Controller
{
function __construct()
{
parent::__construct();
}
}
Now, here's where I get stuck - I can't quite figure out exactly what goes in the Main_Controller, and how it's structured...
Main_Controller:
<?php
class Main_Controller extends MY_Controller
{
function __construct()
{
parent::__construct();
//
// WHAT GOES IN HERE?
// SERIOUSLY, HELP!
//
}
}
Clearly, there's one big line of data missing from the original controller...
$data['link'] = $this->Page_model->get_link();
How does it all tie up?
Not exactly sure if I understand your question correctly, but if you want to avoid repeating this line:
$data['link'] = $this->Page_model->get_link();
What you can do is to put that in the constructor and create a public variable where you can store it.
i.e.
Main_Controller:
<?php
class Main_Controller extends MY_Controller
{
public $link;
function __construct()
{
parent::__construct();
$this->load->model('segment1/Page_model');
$this->link = $this->Page_model->get_link();
}
}
Controller:
<?php
class Home extends Main_Controller {
public function index()
{
$this->load->view('page_view', array('link' => $this->link));
}
public function another_page()
{
// you can keep using the value assigned to link in other
// methods without having to call Page_model->get_link() everytime
$this->load->view('page_view', array('link' => $this->link));
}
}
i'm using codeigniter for my project and i have this class model which i call Genesis which looks like this:
class Genesis_model extends CI_Model {
function __construct() {
parent::__construct();
}
function get() {
return 'human soul';
}
}
and i have another model, stored in the same directory, which extends Genesis_model
class Human_model extends Genesis_model {
function __construct() {
parent::__construct();
}
function get_human() {
return $this->get();
}
}
Human_model is used by Human controller
class Human extends CI_Controller {
function __construct(){
parent::__construct();
$this->load->model('human_model');
}
function get_human() {
$data['human'] = $this->human_model->get_human();
$this->load->view('human/human_interface', $data);
}
}
if i execute the code, it will produce an error which point to return $this->get(). it reads "Fatal error: Class 'Genesis_model' not found in ...\application\models\human_model.php on line 2".
i use this method because nearly all my models shared almost identical structure. I gather the similar functionality in Genesis while the other models serve only as data suppliers unique to the tables they represent. it works well in my asp.net (vb.net) but i don't how to do it in codeigniter.
is there a way for Human_model to inherit Genesis_model. i don't think i'm allowed to use include('genesis_model.php'). i don't know if it works either.
thanks in advance.
core/MY_Model is good if there's only 1 important superclass for your models.
If you want to inherit from more than model superclass, a better option is to change your autoload configuration.
In application/config/autoload.php, add this line:
$autoload['model'] = array('genesis_model');
Put the file genesis_model.php in the core directory
Change your Human_model to this:
include('genesis_model.php');
class Human_model extends Genesis_model {
function __construct() {
parent::__construct();
}
function get_human() {
return parent::get();
}
}
notice the get_human function and the include.
You have to include the Genesis_model on your Human_model.php like this:
include_once( APPPATH . 'folder/file' . EXT );
Or you can autoload it on your config/autoload.php file, what I think is stupid =)
other solution
<?php
$obj = &get_instance();
$obj->load->model('parentModel');
class childModel extends parentModel{
public function __construct(){
parent::__construct();
}
public function get(){
return 'child';
}
}
?>
//My controller section
<?php
class Myadmin extends CI_Controller
{
public function _construct()
{
parent::_construct();
$this->load->library('form_validation');
$this->load->helper('form');
$this->load->model('adder','',TRUE);
}
public function index()
{
echo " i am about to call the model";
$this->adder->insert_user();
}
}
?>
**//My model section**
<?php
class Adder extends CI_Model {
function_construct() {
parent::_construct();
}
public function insert_user()
{
echo " Hi ,the model is accessed";
}
}
?>
Is it because of "function_construct()"?
It has no space and you should use two _
function _construct(){
parent::_construct();
}
Same in Controller
The problem is the way you load the model in your controller.
In the current version of the CodeIgniter you should do something like this:
//loading the model
$this->load->model('adder', 'fubar');
//accessing it's functions
$this->fubar->function();
for more info see this.
EDIT:
You have defined a _construct() function which must be __construct().
Also you should fix parent::_construct(); to parent::__construct().