Suppose someone hits in url http://mysite.com/comments/view/13
But that absentaction is not present in comments controller.
Then it gets normal error like that =>
Error: The action view is not defined in controller CommentsController
Error: Create CommentsController::view() in file: app/controllers/comments_controller.php.
<?php
class CommentsController extends AppController {
var $name = 'Comments';
function view() {
}
}
?>
Notice: If you want to customize this error message, create app/views/errors/missing_action.ctp
What i'm trying to do is that if someone hits url http://mysite.com/comments/view/13 and if the action is not present then it will redirect to http://mysite.com/.
How can i do this for unknown/absent action?
This trick is actually working pretty well.
You need to create a file app/app_error.php
<?php
class AppError extends ErrorHandler {
public function error404($params){
extract($params);
if(!isset($url)){
$url = $action;
}
if(!isset($message)){
$message ="";
}
if(!isset($base)){
$base = "";
}
$this->controller->redirect(array('controller'=>'pages','action'=>'home'));
//Or the page you want...
}
}
?>
How does it work?
It actually override the error404() function from the ErrorHandler and redirect the user whith $this->controller->redict();
Notice at the bottom of the error message, it says you can customize it by creating app/views/errors/missing_action.ctp. So all you need to do is create that .ctp file and include a redirect in it like this:
<?php
header( 'Location: http://mysite.com' ) ;
?>
It says it right in the error...
create app/views/errors/missing_action.ctp
And that's what you should do...
Try using a header in the missing_action.ctp to redirect to where you want the page to go.
You can either customise app/views/errors/missing_action.ctp or you can turn off debugging in app/config/core.php
Related
I'm new to opencart. I want to create a custom theme and some custom controllers and models. I can't find any tutorials relative to this, but I tried to create a view along a controller. When I call that view from home or header view page, like $header (in home file) and $search (in header file), then it shows undefined variable.
My code looks like this. It's in controller (path is catalog\controller\common\test.php).
<?php
class ControllerCommonTest extends Controller{
public function index() {
if(file_exists(DIR_TEMPLATE.this->config->get('config_template').'/template/test/test.tpl')) {
$this->response->setOutput($this->render());
} else {
return $this->load->view('default/template/common/header.tpl');
}
}
}
?>
And my view is in \view\theme\MyTheme\template\common\test.tpl
<?php
echo "Test file";
?>
And in my home file, I call my controller like below...
<?php
echo $header;
echo $test;
echo $footer;
?>
When I run this it shows the below error:
Notice: Undefined variable: test in C:\xampp\htdocs\opencart\catalog\view\theme\MyCustome\template\common\home.tpl on line 4
So, please provide any tutorial links and any examples for developing a custom module in opencart.
Thanks in advance.
To display test module tpl i.e. test.tpl on home page, You have load test controller on home controller. Please add following code in catalog/controller/common/home.php
add this code
$data['test'] = $this->load->controller('common/test');
After
$data['header'] = $this->load->controller('common/header');
I am trying to send a url from view page to controller but it does not seem to work the way i am thinking.
View Page
Product
User
I want to get "tbl_product"
Controller admin
<?php
class Admin extends CI_Controller {
public function test() {
echo $this->uri->segment(4);
}
}
?>
but if the segment(4) is changed to segment(3), it shows up with displaying "product" in the screen
your controller function should have arguments for your url segments
for example:
public function test($product = 'product', $tbl = 'tbl_product') {
echo $tbl // contains the string tbl_product
}
Since you said your routes look like this:
$route['default_controller'] = "admin";
$route['404_override'] = ''
and your URL is like this:
<?= base_url() ?>admin/test/product/tbl_product
Then if your base_url() is localhost/my_app, your URL will be read as this:
http://localhost/my_app/admin/test/product/tbl_product
http://localhost/my_app/CONTROLLER/METHOD/PARAMETER/PARAMETER
So in your controller, you can do this:
class Admin extends CI_Controller {
public function test($product = NULL, $tbl_product = NULL) {
echo $product;
echo $tbl_product;
}
}
It's strange to use codeigniter for this purpose, because codeigniter uses as default the url format bellow.
"[base_url]/[controller]/[method]"
I think it will be better and more easy to just pass the values you want as get parameters and make some httaccess rules to make your url more readable for the user and robots. That said you can do that:
Product
<?php
class Admin extends CI_Controller {
public function test() {
echo $this->input->get('product');
//should output 'tbl_product'
}
}
?>
If you prefer to use uri instead u should route your uri's so it will be like.
In your routes file you probably I'll need something like this.
$route['product/(:any)'] = "Admin/test";
This way you will probably access the uri segments correctly.
Thank you so much for going through.
$this->uri->segment(4); // is now working :S
its not working properly after all I made changes to routes.php and came back to default again. I seriously have no idea what the reason behind not displaying the result before.
Can any one tel me how to use redirect in controller class.
I am wrote below code:
Controller:-
<?php
class Login extends CI_Controller {
public function result()
{
$name = $this->input->post('name');
$email = $this->input->post('email');
$this->index();
redirect('/success', 'location');
}
}
view:-
success.php
<?php
echo "Success page";
?>
It shows error message 404 Page Not Found.
I have load all required helper classes in autoload class.
All you need to do to redirect is
Example:
public function index() {
redirect('controller_name');
// you may need to set controller name in routes do not need location
redirect('folder/controller_name');
// you may need to set controller name in routes do not need location
}
In Codeigniter , redirect method takes 3 parameters.
redirect('/controller_name/method_name', 'location', 301);
First parameter is the uri path which you want to redirect. The second parameter is optional and takes "location" method (default) or the "refresh" method. The third optional parameter is status code. You can check detail on documentation.
Edit
function success () {
$data["message"] = "Success";
$this->load->view("success", $data);
}
views/success.php
<?php echo $message; ?>
You have to pass data in array because codeigniter use extract method to pass value in view so that you can use arrary key as variable.
Hope it will be useful for you.
You might be having these three files
routes.php where you can set your routes as like
$route['success'] = 'your_controller_name/your_method_name';
E.g.
$route['success'] = 'my_controller/success';
then within your_controller.php, there you have a method as
function success() {
$data['msg'] = "Success";
$this->load->view('success',$data);
}
and within your success.php
<?php echo "<h3>".$msg."<h3>";?>
I'm using the template library for CodeIgniter, http://williamsconcepts.com/ci/codeigniter/libraries/template/reference.html, and now I want to implement custom error pages too. I found one method involving a MY_Router extending the default router: http://maestric.com/doc/php/codeigniter_404 but that only treats 404 errors. I want all errors to show a simple user-friendly page, including database errors etc, and I want it to go through a controller, partly so I can use the template library, and partly so I can also implement an email function to send myself information about the error that occurred.
Someone asked about extending the functionality of the above MY_Router method for other errors, like error_db, but got no answer from the author, so I'm turning here to see if anyone knows how to do this, along the lines of the above method or any other simple way of achieving it. Please note that I'm a newbie, so do not assume too much about my knowledge of basic CodeIgniter functionality :-)
I've created an extension for the Exceptions class.
In this extension I've replaced the $this->Exceptions->show_error(); method, witch is used by the show_error() function of CI.
when I call show_error('User is not logged in', 401); this custom method is looking for an error_$status_code file first. In the case of the example above, it will look for an error_401.php file.
When this file does not exists, it wil just load the error_general.php file, like the default $this->Exceptions->show_error(); does.
In your case, you can use the following code to use in your library, controller or whatever should throw an error.
<?php
if(!(isset($UserIsLoggedin))){
$this->load->view('template/header');
show_error('User is not logged in', 401);
$this->load->view('template/footer');
}
?>
Your error_401.php file should than look like this:
<div id="container">
<h1><?php echo 'This is an 401 error'; ?></h1>
<?php echo $message; ?>
</div>
/application/core/MY_Exceptions.php:
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
class MY_Exceptions extends CI_Exceptions
{
function show_error($heading, $message, $template = 'error_general', $status_code = 500)
{
if((!isset($template)) || ($template == 'error_general')){
if(file_exists(APPPATH.'errors/error_'.$status_code.'.php')) {
$template = 'error_'.$status_code;
}
}
if (!isset($status_code)) $status_code = 500;
set_status_header($status_code);
$message = '<p>'.implode('</p><p>', ( ! is_array($message)) ? array($message) : $message).'</p>';
if (ob_get_level() > $this->ob_level + 1)
{
ob_end_flush();
}
ob_start();
include(APPPATH.'errors/'.$template.'.php');
$buffer = ob_get_contents();
ob_end_clean();
return $buffer;
}
}
?>
I do it like this:
I create my own error page, and whenever I should throw a 404 error, I actually load my 404 page.
So say my default controller is site.php, my site.php looks like this:
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
class Site extends CI_Controller {
public function index()
{
$this->load->view('welcome_message');
}
public function view($page = "home" , $function = "index")
{
do_something();
if($status == "404")
{
$function = "404";
}
$this->load->view('templates/header', $data);
$this->load->view($page.'/'.$function, $data);
$this->load->view('templates/footer', $data);
}
}
/* End of file welcome.php */
/* Location: ./application/controllers/welcome.php */
So I serve the home/404.php whenever an error occurs. i.e., I don't allow CodeIgniter to call show_404(); therefore the 404 page looks like any other page.
p.s. I assume that you followed the nice tutorial in CodeIgniter's website.
The simplest way to create custom error pages is to edit the files at /application/views/errors/html/error_*.php such as error_404.php (for 404s), error_db.php (for database errors) and error_general.php (for most other errors).
As these pages are within your application directory, you are free to customise them to your needs.
If your normal view template looks something like this:
<?php $this->load->view('includes/header'); ?>
...
...
<?php $this->load->view('includes/footer'); ?>
You can adapt this in your /application/views/errors/html/error_*.php files like so:
<?php
$page_title = $heading;
include VIEWPATH.'includes'.DIRECTORY_SEPARATOR.'header.php';
?>
<div class="well">
<h1><?php echo $heading; ?></h1>
<?php echo $message; ?>
</div>
<?php include VIEWPATH.'includes'.DIRECTORY_SEPARATOR.'footer.php'; ?>
Notice that we're no longer using views, but instead including the view files for the header & footer.
Another thing to note:
In the header view, I'm passing a $data object which includes $data['page_title']. As the error pages don't use views, you have to add any variables that you'd normally pass into the view, hence the presence of $page_title.
config/routes.php
edit
$route['404_override'] = '';
type here your controller for example Error
create a function index and load your view
I am pretty new to codeigniter. I do know php.
How can I accomplish to load the right view?
My url: /blog/this-is-my-title
I’ve told the controller something like
if end($this->uri->segment_array()) does exist in DB then load this data into some view.
I am getting an 404-error everytime I access /blog/whatever
What am i seeing wrong?
unless you're using routing, the url /blog/this-is-my-title will always 404 because CI is looking for a method called this-is-my-title, which of course doesn't exist.
A quick fix is to put your post display code in to another function and edit the URLs to access posts from say: /blog/view/the-post-title
A route like:
$route['blog/(:any)'] = "blog/view/$1";
may also achieve what you want, if you want the URI to stay as just `/blog/this-is-my-title'
The may be more possibilities:
The most common - mod_rewrite is not active
.htaccess is not configured correctly (if u didn't edited it try /blog/index.php/whatever)
The controller does not exist or is placed in the wrong folder
Suggestion: if you only need to change data use another view in the same controller
if (something)
{
$this->load->view('whatever');
}
else
{
$this->load->view('somethingelse');
}
If none of those works post a sample of code and configuration of .htaccess and I'll take a look.
The best way to solve this problem is to remap the controller. That way, you can still use the same controller to do other things too.
No routing required!
enter code here
<?php
class Blog extends Controller {
function __construct()
{
parent::__construct();
}
public function _remap($method, $params = array())
{
if (method_exists($this, $method))
{
$this->$method();
}
else
{
$this->show_post();
}
}
function index()
{
// show blog front page
echo 'blog';
}
function edit()
{
// edit blog entry
}
function category()
{
// list entries for this category
}
function show_post()
{
$url_title = $this->uri->segment(2);
// get the post by the url_title
if(NO RESULTS)
{
show_404();
}
else
{
// show post
}
}
}
?>