php: Routing in CI (Codeigniter) - php

I really have a hard time understanding the URL/URI routing in CI. In this instance, I have two links, one is Home and the other is Panel, Home links to main/index and panel links to main/panel, heres the snippet to better understand.
Home
Panel
and this is the code for the controller main.php
class Main extends CI_Controller
{
public function index()
{
$this->load->helper('url');
$this->load->helper('form');
$this->load->view('templates/header');
$this->load->view('home');
$this->load->view('templates/footer');
}
public function panel()
{
$this->load->helper('url');
$this->load->helper('form');
$this->load->view('templates/header');
$this->load->view('panel');
$this->load->view('templates/footer');
}
}
and heres my routes (config/routes.php)
$route['main/index'] = "main/index";
$route['main/panel'] = "main/panel";
$route['default_controller'] = "main/index";
At first run, it will automatically go to main/index, it works fine, but when i click the panel link it says Object not found so does the Home link Object no found

First, you better have path relative to root in href:
Home
Panel
or, even better like this:
Home
Panel
next thing is views you are loading, correct way is to load one view in controller function:
$this->load->view('home');
and in home.php you need to include your other views, home.php:
<?php $this->load->view('templates/header');?>
...
<!--YOUR HOME HTML GOES HERE-->
...
<?php $this->load->view('templates/footer');?>
Now the routing. Be sure to use /index.php/[controller]/[function] links (unless you are using url rewrite like here http://ellislab.com/codeigniter/forums/viewthread/180566/)
Routing config:
$route['default_controller'] = "main/index"; //this is the only thing you need to define
After all your pages will be accessible via such urls:
Index page: http://example.com/ , http://example.com/index.php/main/index
Panel page: http://example.com/index.php/main/panel

Related

How to redirect the user to another page with Codeigniter?

I'm starting with CodeIgniter and I'm having a little trouble linking the pages.
I'm doing it this way:
<li class="nav-item mr-3">
<a class="nav-link page-scroll" href="<?php echo base_url('nomeApp/login');?>">Login</a></li>
My controller is like this:
class Homepage extends CI_Controller{
function __construct(){
parent::__construct();
$this->load->helper('url');
public function index()
{
$this->load->view('homepage/index');
}
public function login()
{
$this->load->view('login/login');
}
}
For redirect between pages use redirect function like
redirect('controllername/method');
To navigate from navigation menu provide complete link in href
Home
If you want to rename route go to config/routes.php
$route['nomeApp/login'] = 'homepage/login';
https://www.codeigniter.com/user_guide/general/routing.html#examples
You may need to include the index.php <?php echo base_url('index.php/nomeApp/login');?>
Are you trying to send the user to a different page after a successful login?
If thats the case, you can use redirect('path/to/yourpage');
For redirect between pages use redirect function like
redirect('yourcontrollername/methodname');
If you want to rename route go to config/routes.php
$route['App/login'] = 'home/login';

redirecting page in codeigniter

I am fairly new to PHP MVC framework, codeigniter and in the process of developing my first website using the MVC framework. I am having trouble with my site navigation page as I want to create links that will redirect the user to the another page of the site.
Here is my controller (home_controller.php)
class Home_controller extends CI_Controller{
public function __construct(){
parent::__construct();
}
public function index(){
$this->load->view('index');
}
public function login(){
$this->load->view('login');
}
}
This is what i have in views file where i am attempting to set a link to the login page.
Staff
After running the application and attempting to navigate sign in/staff link, an error is displaying
The requested URL / home_controller/login/ was not found on this server.
I have already loaded the url helpers from autoload.php file
i have set the base_url from the config.php file to http://localhost:8888/
But its still not working for me.
Try this
<li>
Sign in ↓
<ul class="hidden">
<li>Staff</li>
</ul>
</li>
and in config.php file base_url function should be empty
Make sure If you are using CI3+ then file name should be Home_controller.php. If you using 3.0- then file name should be home_controller.php

Issue with URI routing so links doesn't work with CodeIgniter

I'm new to CodeIgniter. I have a homepage with links. I know how to link the homepage with another page, but I think I'm doing something wrong in the routes.php
I looked through the tutorials, but I still can't find the problem. I tried writing the routes in different ways. Can someone help me?
View of home.php
<ul>
<li>Homepagina</li>
<li>Over</li>
<li>Inloggen</li>
<li>Registreren</li>
<li>Profiel</li>
<li>Matches</li>
<li>Config</li>
</ul>
Controller of home.php
class Pages extends CI_Controller {
public function view($home ='home')
{
$this->load->helper('html');
$this->load->helper('url');
if (! file_exists(APPPATH.'views/pages/'.$home.'.php'))
{
show_404();
}
$data['title'] = ucfirst($home);
$this->load->view('templates/header',$data);
$this->load->view('templates/slideshow', $data);
$this->load->view('pages/'.$home, $data);
$this->load->view('templates/footer',$data);
}
}
routes.php
$route['default_controller'] ='pages/view';
$route['login'] = 'login/view/login';
Controller of Login
class Login extends CI_Controller {
public function view($login ='login')
{
$this->load->helper('html');
$this->load->helper('url');
if (! file_exists(APPPATH.'views/pages/'.$login.'.php'))
{
show_404();
}
$data['title'] = ucfirst($login);
$this->load->view('templates/header',$data);
$this->load->view('pages/'.$login, $data);
$this->load->view('templates/footer',$data);
}
Thank you for the help in advance!
just call controller and method
<li>Inloggen</li>
If not works
<li>Inloggen</li>
try this
When you extend a class that has a constructor, you need to call that constructor from the class you are extending it from... ie
class Controller_name extends CI_Controller {
public function __construct(){
parent::__construct(); // Call the CI_Controller __construct();
}
Note that the __ is actually two underscores but appears a a single line on here.
With your Routes
routes.php
$route['default_controller'] ='pages/view';
$route['login'] = 'login/view/login';
Remember that a CI URL is of the form domainname.com/controller/method
The default_controller is where the browser will be redirected to if you do not supply the controller/method ie - just domainname.com. With your default controller route, you will be redirecting to your pages controller and accessing the view method. Going by your code that should be fine.
Your login route should also be fine if you access domainname.com/login as your url - this will be sent to your login controller, view method and passing in login as the page name.
home.php
<ul>
<li>Homepagina</li>
<li>Over</li>
<li>Inloggen</li>
<li>Registreren</li>
<li>Profiel</li>
<li>Matches</li>
<li>Config</li>
</ul>
With your link to home.php, you might want to create a controller called Home.php and define the index() method. So change
Homepagina
to
Homepagina
The link then becomes domainname.com/home - which points to your home controller and it's index method.
Then we come to this
<a href="<?php echo site_url('login/login');
This will create domainname.com/login/login. Your login route is only looking for domainname.com/login. So the current link domainname.com/login/login is looking for a Controller called login with a method called login.
Your link with myprofile/myuserprofile will be looking for a controller called myprofile and a method called myuserprofile. There is nothing in your routes.php to deal with this. So if that is not working, it's nothing to do with the routes.
So this is all pointing back to you (possibly) not having defined the __construct methods as I discussed at the beginning.
<li>Inloggen</li>
if it works you can remove index.php.
follow this documentation to remove index page
If you don't use full path of url i.e. starting with http[s]://, it's always smart start links with fore slash:
<li>Over</li>
You can use CI url helper and be more safe in case you are struggling™ with .htaccess and index.php with:
echo base_url('pages/about')
Also, practicing static pages tutorial, pay attention on docs' Loader lybrary page, so you can find how to pass all data to all view pages, leaving it to view files and in that case you don't need to set second parameter in here:
$this->load->vars($data);
$this->load->view('templates/header');
$this->load->view('templates/slideshow');
$this->load->view('pages/'.$home);
$this->load->view('templates/footer');
And all $data array will be passed to all view files and you'll be able to make output of those.
Maybe you find it usefull once. ;)

Strategy to route to pages in codeigniter

i was wondering whats the best way to route to pages in codeigniter? Say for example user wants to route to the index page, but should i create a method in a controller that just fo rthat page, or what is better way?
No need to create separate methods or controllers. Here's how I do it:
class Pages extends CI_Controller {
function _remap($method)
{
is_file(APPPATH.'views/pages/'.$method.'.php') OR show_404();
$this->load->view("pages/$method");
}
}
So the url http://example.com/pages/about would load the view file application/views/pages/about.php. If the file doesn't exist, it shows a 404.
You don't need any special routing to do this, but you can do something like this if you wanted the URL to be http://example.com/about instead:
// Route the "about" page
$route['about'] = "pages/$1";
// Route ALL requests to the static page handler
$route['(:any)'] = "pages/$1";
Routing can be done using the application/config/routes.php file. You can define custom routes redirecting to the index page there. There is absolutly no need to create methods for every page.
A more detailed explanation can be found here: http://codeigniter.com/user_guide/general/routing.html
EDIT:
Didn't realy got what you meant, but here is the solution I use:
class Static_pages extends CI_Controller {
public function show_page($page = 'index')
{
if ( ! file_exists('application/views/static_pages/'.$page.'.php'))
show_404();
$this->load->view('templates/header');
$this->load->view('static_pages/'.$page);
$this->load->view('templates/footer');
}
}
I make 1 controller in application/controllers for the static pages with 1 method in it that I use to load in the static pages.
Then I add this line to application/config/routes.php:
$route['(:any)'] = 'static_pages/show_page/$1';
//you can also change the default_controller to show this static page controller
$route['default_controller'] = 'static_pages/show_page';
In the config file located at /application/config/routes.php

How can I redirect a 404 Error in a custom 404 page using Codeigniter?

Kind sirs,
I'm using Codeigniter to build a blog. I might need a way to redirect a 404 error into a custom 404 page. Just like what Abduzeedo.com's 404 page. Is it possible to control this by using routes? Or should i use controllers to direct it to another view? Thanks very much!
there is another way which I use: by overriding Exception core class of Codeigniter. Firstly make sure your config file(system/application/config/config.php) subclass prefix is as following
$config['subclass_prefix'] = 'MY_';
Then make a file named MY_Exceptions.php in system/application/libraries. Then override the function show_404() function here as follows.
class MY_Exceptions extends CI_Exceptions{
function MY_Exceptions(){
parent::CI_Exceptions();
}
function show_404($page=''){
$this->config =& get_config();
$base_url = $this->config['base_url'];
$_SESSION['error_message'] = 'Error message';
header("location: ".$base_url.'error.html');
exit;
}
}
Now Error controller will be your error page, where the page will be redirected for 404 error.
Custom 404 page is create by using the following 3 steps,
Step 1: First open routes.php in application/config and set a custom controller name,
$route['404_override'] = 'my404'; //my404 is class name.
Step 2: Create a new controller and write the following code in it. The code is very easy to understand. So I am not going to explain it here,
<?php
class my404 extends CI_Controller
{
public function __construct()
{
parent::__construct();
}
public function index()
{
$this->output->set_status_header('404');
$data['content'] = 'error_404'; // View name
$this->load->view('index',$data);//loading in my template
}
}
?>
Step 3: Create a view file with name 'error_404.php' with your custom message.
You don't need to create any controller or modify the code, rather than modify one view file. Just placed your 404 page HTML into the application/views/errors/html/error_404.php file.
If you want to use base_url() or any other CodeIgniter functions, initialize CI_Controller class like the below code.
<?php
$ci = new CI_Controller();
$ci =& get_instance();
$ci->load->helper('url');
?>
For a simple solution, go to your "error_404.php" file in "application/errors/" directory and put this code at the beginning of the file:
header("Location:".base_url());
It'll redirect your 404 page to home page.
Simple Solution.
Create your custom error or Page not found page within view.
Create a controller for error page. Within index function load the view of error page that you already created in previous step.
Now, Go to your application/config/routes.php
you should find $route['404_override'] = '';
Its the '' mean its calling the default error page.
Now place your controller name for error page .
It will work.
Suppose my Controller for error page is 'error'. and view page is 'notfound' .
So, code for Error.php controller will be:
<?php
class Error extends CI_Controller
{
function index()
{
$this->load->view('notfound');
}
}
Now, I replaced $route['404_override'] = ''; to $route['404_override'] = 'error'; in
application/config/routes.php.
Well you want to show your custom 404page when page not found in your website you just replace your custom file on core file which is located in application/error/error_404.php just replace your file here and you are good to go else where you can follow other method by using routes and custom controller for you custom 404 page. But the shortest and easiest way is replacing the core file with custom 404error page file
First open routes.php in the application/config folder and set a custom controller name.
$route['404_override'] = 'custom404'; //custom404 is class name.
Create a new controller and write the following code in it. The code is very easy to understand. So I am not going to explain it here.
<?php
class custom404 extends CI_Controller
{
public function __construct()
{
parent::__construct();
}
public function index()
{
$this->output->set_status_header('404');
$data['content'] = 'error_404'; // View name
$this->load->view('index',$data);//loading in my template
}
}
?>
Create a view file with name 'error_404.php' with your custom message.
That is all you need to do and will be having your custom 404 page now.
No need to define any complexity.
The process is very simple.
First, go to your application->config->routes.php file and change this with your controller's function, where you simply load the header, footer, and 404.php page.
$route['404_override'] = 'welcome/_404';
Then come to your controller's page
function _404(){
$this->load->view("header");
$this->load->view("404");
$this->load->view("footer");
}
The same question is also available here
Display a view for 404 error in CodeIgniter
A more simple solution:
Just edit /application/views/error_404.php with your custom 404 page :)

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