I'm using Codeigniter 3 and I want to custom the show_404() function.
Here is my main controller:
class Welcome extends CI_Controller {
public function index() {
$this->load->view('welcome_message');
}
public function otherMethod() {
show_404();
}
}
Added on my routes.php
$route['404_override'] = 'error/show_404_custom';
Created the controller Error.php with the method show_404_custom
<?php
defined('BASEPATH') OR exit('No direct script access allowed');
class Error extends CI_Controller {
public function show_404_custom() {
$this->load->view('404_read_view');
}
}
The 404_read_view.php view:
<!DOCTYPE html>
<html>
<head>
<title></title>
</head>
<body>
<p>Custom 404 page.</p>
</body>
</html>
Then I've tested with some undefined URL like:
/index.php/welcome/method_A
And I successfully get my Custom 404 page.
However, if I run a method that uses the show_404() function like:
/index.php/welcome/otherMethod
I oddly get the standard Codeigniter 404 page.
I've searched a bit and found out that I should Extend the Exception core class and override the show_404() function like this:
https://stackoverflow.com/a/8425433/4301970
So, I created the MY_Exceptions.php class inside /application/core:
<?php (defined('BASEPATH')) OR exit('No direct script access allowed');
class MY_Exceptions extends CI_Exceptions {
public function __construct() {
parent::__construct();
}
public function show_404() {
$CI =& get_instance();
$CI->load->view('404_read_view');
echo $CI->output->get_output();
exit;
}
}
And when I run the URL:
/index.php/welcome/otherMethod
I get the error:
Fatal error: Class 'MY_Exceptions' not found in (...)\system\core\Common.php on line 196
I took look inside Common.php and noticed that the load class function looks inside the libraries directory instead of core directory?
function &load_class($class, $directory = 'libraries', $param = NULL)
How can I solve this problem?
use this, it's work in CI 3.1.4 (my latest project)
class MY_Exceptions extends CI_Exceptions {
public function __construct()
{
parent::__construct();
}
function show_404($page = '', $log_error = TRUE)
{
$CI =& get_instance();
$CI->load->view('404_read_view');
echo $CI->output->get_output();
exit;
}
}
When you need to use CI3 404_override cannot be in subfolder
Change
$route['404_override'] = 'error/show_404_custom';
// thinks its in subfolder
To
Location: application > controllers > Error.php
$route['404_override'] = 'error';
Controller
<?php
defined('BASEPATH') OR exit('No direct script access allowed');
class Error extends CI_Controller {
public function index() { // change to index
$this->load->view('404_read_view');
}
}
Related
My Project Structure is
application
controllers/site
core/
views/site
I want when i entered http://mywebsite admin has to be loaded and when i entered http://mywebsite/site frontend has to be loaded
I went through some tutorials and i have done changes below
In config/routes.php
$route['default_controller'] = 'admin';
$route['404_override'] = '';
$route['translate_uri_dashes'] = FALSE;
$route['site'] = 'site/home';
In core/My_Controller.php
defined('BASEPATH') or exit('No direct script access allowed');
class MY_Controller extends CI_Controller
{
function __construct()
{
parent::__construct();
}
}
class Admin_Controller extends MY_Controller
{
function __construct()
{
parent::__construct();
}
}
class Site_Controller extends MY_Controller
{
function __construct()
{
parent::__construct();
}
}
In controller/site/Home.php
defined('BASEPATH') or exit('No direct script access allowed');
class Home extends Site_Controller
{
public function __construct()
{
parent::__construct();
}
public function index()
{
$this->load->view("site/index.php");
}
}
But I am getting 404 when I opened http://mywebsite/site
Please help me
$route['site'] = 'site/home';
What that line does is that it defines a route that looks for a method called home inside the controller called Site viz. Site_Controller.
So you are getting the 404 error because your Site_Controller does not have the home method.
Try changing the Site_Controller like so...
class Site_Controller extends MY_Controller
{
function __construct()
{
parent::__construct();
}
# added this method
public function home()
{
$this->load->view("site/index.php");
}
}
I am using PHP MVC CI. BaseController and LoginController are both inside Controller Folder. When I run the Login Controller. It says..
Class 'BaseController' not found
Login Controller
<?php
if ( ! defined('BASEPATH')) die('No direct script access allowed');
class loginController extends BaseController {
function __construct() {
parent::__construct();
}
public function login() {
$this->load->View("template/header");
$this->load->View("login_view");
}
}
?>
Base Controller
<?php
class BaseController extends CI_Controller {
function __construct()
{
session_start();
$this->load->library('session');
parent::__construct();
}
}
?>
Any idea why this is happening ?
If you need a parent controller than should be in
Path - application/core/MY_Controller.php
http://www.codeigniter.com/user_guide/general/core_classes.html
<?php
class MY_Controller extends CI_Controller {
public function __construct() {
parent::__construct();
}
}
If you also autoload sessions then you will not need to use session_start.
http://www.codeigniter.com/user_guide/libraries/sessions.html
Filename: Welcome.php must be first letter uppercase in CI3
<?php
class Welcome extends MY_Controller {
}
CI 3 is case sensitive
Both user guides now here. CI2 & CI3 http://www.codeigniter.com/docs
You just need to change the file path , as follows:
application > controllers > Login.php
<?php
if ( ! defined('BASEPATH')) die('No direct script access allowed');
class loginController extends BaseController {
function __construct() {
parent::__construct();
}
public function login() {
$this->load->View("template/header");
$this->load->View("login_view");
}
}
?>
And,
application > core > Base_controller.php
<?php
class BaseController extends CI_Controller {
function __construct()
{
session_start();
$this->load->library('session');
parent::__construct();
}
}
?>
Codeigniter wont load it from the same folder.
You either put both classes in the same file, not desirable or put the base controller in application/core.
You will need to also set your prefix for you extended controller, for example BASE_Controller.
application/config/config.php
$config['subclass_prefix'] = 'BASE_';
Codeigniter has good docs, and what you are after can be found here
Firstly I am getting no errors, I am trying to create an is_logged_in() method in my header model in Code Igniter, but nothing in the index method of the controller will load. I added die(); into it and even that wont execute, Here is my code:
header.php - controller
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
class Header extends CI_Controller {
public function index() {
print_r($this->session->all_userdata());
$data = array();
$data['title'] = 'Wenso - Timesheet';
$username = $this->session->userdata('username');
$this->load->view('template/header', $data);
$this->load->model('header_model');
$is_logged_in = $this->header_model->is_logged_in($username);
die($is_logged_in);
}
}
header_model.php - Model
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
class Header_model extends CI_Model {
public function is_logged_in($username){
$q = $this
->db
->where('email_address', $username)
->limit(1)
->get('users');
die($q->last_query());
if($q->row('username') != $username){
return FALSE;
} else {
return TRUE;
}
}
}
Note: none of the die() functions in my code work.. Anything I add into the index function of the controller (which to my understanding is loaded by default) does not get executed...
Thanks in advance
public function __construct() { parent::__construct(); }
Add this method at your model else you wont have $this->db loaded
As AdrienXL pointed out the controller is only loaded whern the url /controller_name is called.. This wasn;t the case in my user case scenario.
Also something worth pointing out as Sevtilo mentioned above if you create a construct method in CodeIgniter you ovewrite the dafult calls for things such as $this->db class, using:
public function __construct() {
parent::__contsruct();
}
Will get the parent classes contsructor.
Regards
Ric
If you want to call this code transparently (ie without having to put any extra mess in the uri) then move the code into the constructor of an extension called MY_Controller.php in application/core that looks a bit like this...
class MY_Controller extends CI_Controller {
public function __construct() {
parent::__construct();
print_r($this->session->all_userdata());
$data = array(); $data['title'] = 'Wenso - Timesheet';
$username = $this->session->userdata('username');
$this->load->view('template/header', $data);
$this->load->model('header_model');
$is_logged_in = $this->header_model->is_logged_in($username);
die($is_logged_in);
}
}
And then in your application/controllers files extend this class like
class Some_controller extends MY_Controller{
function __construct (){
parent::__construct();
}
public function index(){
//your header code will be run before this or any other method in this class
}
}
And the code from MY_Controller.php will run before any of your methods.
I have one controller named home.php in which a function named podetails is there. I want to call this function in another controller user.php.
Is it possible to do so? I have read about HMVC in CI, but I want to know is it possible to do without using hmvc?
To extend controller please either follow this tutorial or see some code below.
differences between private/public/protected
make a file in folder /application/core/ named MY_Controller.php
Within that file have some code like
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
class MY_Controller extends CI_Controller {
protected $data = Array(); //protected variables goes here its declaration
function __construct() {
parent::__construct();
$this->output->enable_profiler(FALSE); // I keep this here so I dont have to manualy edit each controller to see profiler or not
$this->load->model('some_model'); //this can be also done in autoload...
//load helpers and everything here like form_helper etc
}
protected function protectedOne() {
}
public function publicOne() {
}
private function _privateOne() {
}
protected function render($view_file) {
$this->load->view('header_view');
if ($this->_is_admin()) $this->load->view('admin_menu_view');
$this->load->view($view_file . '_view', $this->data); //note all my view files are named <name>_view.php
$this->load->view('footer_view');
}
private function _isAdmin() {
return TRUE;
}
}
and now in any of yours existing controllers just edit 1st or 2nd line where
class <controller_name> extends MY_Controller {
and you are done
also note that all your variables that are meant to be used in view are in this variable (array) $this->data
example of some controller that is extended by MY_Controller
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
class About extends MY_Controller {
public function __construct() {
parent::__construct();
}
public function index() {
$this->data['today'] = date('Y-m-d'); //in view it will be $today;
$this->render('page/about_us'); //calling common function declared in MY_Controller
}
}
write the podetails() as a function within a helper file.
then load that helper in both of the controllers.
in the controller you just call podetails()
Suppose:
--controller 1--
function podetails()
{
podetails(); // will call function in helper ;
}
--controller 2--
function podetails()
{
podetails(); // will call function in helper ;
}
I have been working on a session validation for my login to make sure that a user is logged in to view pages. I keep getting this error:
Fatal error: Class 'MY_Staffcontroller' not found in /usr/local/var/www/CodeTest
/ci/application/controllers/staff_c.php on line 3
My staff_c page looks like so :
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
class Staff_c extends MY_Staffcontroller {
function homepage()
{
$data['main_content'] = 'homepage_view';
$this->load->view('includes/template', $data);
}
}
I have been reading same questions all over the place and they say the same thing pretty much...
Is your controller located in application/core?
Well yes it is. I can't seem to get passed this hump!
This is the code within My_Staffcontroller.php:
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
class MY_staffcontroller extends CI_Controller {
function __construct()
{
parent::__construct();
$loggedin = $this->session->userdata('loggedin');
if(!isset($loggedin) || $loggedin != TRUE);
{
die($this->load->view('denied'));
}
}
}
I know this is user error as this is only my second day with CodeIgniter but I can't seem to find proper workaround for this?
I have tried this tutorial and still nothing and also this
Even following this video has me stuck on the session part.
And I just can not get this to work.
Remember Linux is case-sensative whereas Windows is case-insensative.
place you're MY_Staffcontroller inside application/core/MY_Controller.php file
Your MY_Controller.php file should look like this (minus all you're other functions, this is a minimal example)
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
class MY_Controller extends CI_Controller
{
public function __construct()
{
parent::__construct();
}
}
class MY_Staffcontroller extends MY_Controller
{
public function __construct()
{
parent::__construct();
}
public function sayHello()
{
echo "Hello, I am a function within MY_Staffcontroller.php";
}
}
Example
This will be located in /application/controllers directory
Basically any protected and public functions located in either MY_Controller OR MY_Staffcontroller will be accessible from derived controllers that extend the extended controller. In this case it would be MY_Staffcontroller
class Public_Staff_Controller extends MY_Staffcontroller
{
public function __construct()
{
parent::__construct();
}
public function index()
{
$this->sayHello();
}
}
/* end of file /application/core/MY_Controller.php */