View shows a blank page with no error - php

currently learning CodeIgniter using version 3.0,PHP 5.5, MySQL on WAMP and Sublime Text 3 as my editor. I'm attempting to load a view but the page is blank with no error even though error_reporting is turned on. When I echo my array, it displays the data. Below are my table and code
Below are the code for my model, control and view in that order
MODEL (product.php)
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
class Product extends CI_Model {
function get_products() {
$this->db->select()->from('products')->order_by('name','desc');
$query=$this->db->get();
return $query->result_array();
}
}
CONTROLLER (products.php)
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
class Products extends CI_Controller {
public function __construct()
{
parent::__construct();
}
public function index()
{
$this->load->model('product');
$data['products']=$this->product->get_products();
$this->load->view('pro_index', $data, TRUE);
//echo "<pre>"; print_r($data['products']); "</pre>";
}
}
VIEW (pro_index.php)
<!DOCTYPE html>
<html lang="">
<head>
<!-- Required meta tags always come first -->
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Title Page</title>
</head>
<body>
<?php
if (isset($products)) {
foreach ($products as $row) {
echo "<div>"."<h2>".$row["name"]."</h2>"."</div>";
echo "what is this?";
}
}
?>
</body>
</html>
What could i possibly be doing wrong?


In your Controller, try removing the third parameter (TRUE).
This is used for returning data (such as JSON, etc.)
//this->load->view('pro_index', $data, TRUE);
this->load->view('pro_index', $data);


try this
public function index()
{
$this->load->model('product');
$this->data['products']=$this->product->get_products();
$this->load->view('pro_index', $this->data, TRUE);
}


You were returning the array data with "$data" to your view page and you are looping with "foreach ($products as $row)". You have to change the foreach loop $products to $data.
In model
$this->load->view('pro_index', $data, TRUE);
In view page
foreach ($products as $row)

Related

I'm facing this error Cannot use object of type mysqli as array

Controoler:
<?php
namespace App\Controllers;
use CodeIgniter\Controller;
use App\Models\Services;
class Detail extends Controller
{
public function nadeem($id)
{
$model= new Services();
$data = $model->select('text','title','image')->where('id',$id);
$nadeem['result'] = $data->get();
return view('service_detail', $nadeem);
}
}
view:
<!DOCTYPE html>
<html>
<head>
<title>Service</title>
</head>
<body>
<?php if ($result): ?>
<?php foreach ($result as $key => $value): ?>
<p><?php echo $value['text'];?></p>
<?php endforeach; ?>
<?php endif; ?>
</body>
</html>
I'm facing this error
Cannot use object of type mysqli as array
How can solve this problem.

Change the controller to this:
$model = new Services();
$nadeem['result'] = $model->select('text, title, image')->where('id',$id)->findAll();
return view('service_detail', $nadeem);
Basically in your case you're sending to the view the query object and not the query result.
This answer assumes that you're using the codeigniter 4 Model and not a custom model since you didn't post the model.

display database result array in Codeigniter Controller and Also Pass in View

How Can We Fetch specific details from result array in controller and also pass result array to view. below i have written the code that i am using to get data from database in codeigniter model and then including it in controller and also able to pass it to view and echo results there, but i want to get some specific column results ( Metatitle, Metadesc, Metakeywrd ) in controller, so i can set meta_title, meta_description, meta_keywords values in controller only and pass it to view head dynamically,
This is My Controller
<?php
class India extends CI_Controller {
public function __construct()
{
parent::__construct();
}
public function memberview()
{
$data['meta_title'] = '';
$data['meta_description'] = '';
$data['meta_keywords'] = '';
$teamid = $this->uri->segment(6);
$data['view'] = 'region/india/team-member-view.php';
$this->load->model('region/India_model');
$data['team'] = $this->India_model->tmview($teamid);
$data['teamlist'] = $this->India_model->teamlist();
$this->load->view('region/layout', $data);
}
}
?>
This is My Model
<?php
if ( ! defined('BASEPATH')) exit('No direct script access allowed');
class India_model extends CI_Model{
public function tmview($teamid){
$this->db->select('*');
$this->db->from('ojiteam');
$this->db->where("id",$teamid);
$query = $this->db->get();
return $query->result_array();
}
}
?>
Here in View i am fetching data like this, this is working properly but head parts meta tags is getting set at controller, there are multiple static pages for that meta tags getting set in controller file and for some dynamic pages meta tags have been saved into database column.
<?php
foreach($team as $value){
};
?>
<!doctype html>
<html lang="en">
<meta http-equiv="content-type" content="text/html;charset=UTF-8" />
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<meta http-equiv="content-language" content="en"/>
<title><?php echo $meta_title; ?></title>
<meta name="description" content="<?php echo $meta_description; ?>" />
<meta name="keywords" content="<?php echo $meta_keywords; ?>" />

i'm not sure if i understood what you want but if i did i guess this is what you want ?
$team = $this->India_model->tmview($teamid);
$data['meta_title'] = $team['meta_title'];
$data['meta_description'] = $team['meta_description'];
$data['meta_keywords'] = $team['meta_keywords'];

Load html/php template function

I just go to the point.
Nvm need to add more text to much code..
Trying to load a Template with php inside it but php prints in html instead.
Init.php
class Init {
public static $ROOT = '';
public static $TEMPLATE = '';
public static $SERVICE = '';
public static function start() {
// Init Paths
Init::$ROOT = str_replace("\\", "/", __DIR__);
Init::$TEMPLATE = Init::$ROOT . "/Template/";
Init::$SERVICE = Init::$ROOT . "/Service/";
// Init Template.php class
require_once(Init::$SERVICE . "Template.php");
// Load template Top.php
$top = new Template(Init::$TEMPLATE . "Layout/Top.php");
echo $top->load(); // Show Top.php
}
}
Top.php
<!DOCTYPE html>
<html>
<?
// Load template Head.php
$head = new Template(Init::$TEMPLATE . "Layout/Head.php");
$head->set("TITLE", "Dashboard"); //Set [#TITLE] to Dashboard
$head->load(); // Show Head.php
?>
</html>
Head.php
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>[#TITLE] | cwEye</title> <!-- [#TITLE] will be Dashboard-->
<?
echo "Hello"; // ERROR -> This will print <? echo"Hello"; ?> in my page
?>
</head>
Template.php
<?
class Template {
protected $file;
protected $values = array();
private static $templateFile = null;
public function __construct($file) {
$this->file = $file;
}
public function set($key, $value) {
$this->values[$key] = $value;
}
// This code works but it will not load php inside
public function load() {
if (!file_exists($this->file)) return "Error loading template file ($this->file).";
ob_start();
include_once($this->file);
$data = ob_get_clean();
foreach ($this->values as $key => $value) {
echo str_replace("[#$key]", $value, $data);
}
if(count($this->values) == 0) echo $data;
}
}
?>
Ive played with allot of functions to make it but it does not work...
It just prints the php in html.
Tried with
ob_start();
include_once(FILE);
$data = ob_get_clean();

Don't use short tags like <? or <?=, use <?php instead. You probably have your short_open_tag set to false in php.ini. If you are using PHP 7 then you should know short tags were removed completely and wont work anymore.

In head.php use the full tag. Change
to
<?php echo "hello"; ?>

Avoid mentioning to load the header and footer all the time [duplicate]

I really don't enjoy writing in every controller:
$this->load->view('templates/header');
$this->load->view('body');
$this->load->view('templates/footer');
Is it possible to do, that header and footer would be included automatically and if we need to change it, we could also do that? How do you deal with that? Or it's not a problem in your opinion? Thanks.

Here's what I do:
<?php
/**
* /application/core/MY_Loader.php
*
*/
class MY_Loader extends CI_Loader {
public function template($template_name, $vars = array(), $return = FALSE)
{
$content = $this->view('templates/header', $vars, $return);
$content .= $this->view($template_name, $vars, $return);
$content .= $this->view('templates/footer', $vars, $return);
if ($return)
{
return $content;
}
}
}
For CI 3.x:
class MY_Loader extends CI_Loader {
public function template($template_name, $vars = array(), $return = FALSE)
{
if($return):
$content = $this->view('templates/header', $vars, $return);
$content .= $this->view($template_name, $vars, $return);
$content .= $this->view('templates/footer', $vars, $return);
return $content;
else:
$this->view('templates/header', $vars);
$this->view($template_name, $vars);
$this->view('templates/footer', $vars);
endif;
}
}
Then, in your controller, this is all you have to do:
<?php
$this->load->template('body');

Yes.
Create a file called template.php in your views folder.
The contents of template.php:
$this->load->view('templates/header');
$this->load->view($v);
$this->load->view('templates/footer');
Then from your controller you can do something like:
$d['v'] = 'body';
$this->load->view('template', $d);
This is actually a very simplistic version of how I personally load all of my views. If you take this idea to the extreme, you can make some interesting modular layouts:
Consider if you create a view called init.php that contains the single line:
$this->load->view('html');
Now create the view html.php with contents:
<!DOCTYPE html>
<html lang="en">
<? $this->load->view('head'); ?>
<? $this->load->view('body'); ?>
</html>
Now create a view head.php with contents:
<head>
<title><?= $title;?></title>
<base href="<?= site_url();?>">
<link rel="shortcut icon" href='favicon.ico'>
<script type='text/javascript'>//Put global scripts here...</script>
<!-- ETC ETC... DO A BUNCH OF OTHER <HEAD> STUFF... -->
</head>
And a body.php view with contents:
<body>
<div id="mainWrap">
<? $this->load->view('header'); ?>
<? //FINALLY LOAD THE VIEW!!! ?>
<? $this->load->view($v); ?>
<? $this->load->view('footer'); ?>
</div>
</body>
And create header.php and footer.php views as appropriate.
Now when you call the init from the controller all the heavy lifting is done and your views will be wrapped inside <html> and <body> tags, your headers and footers will be loaded in.
$d['v'] = 'fooview'
$this->load->view('init', $d);

Try following
Folder structure
-application
--controller
---dashboards.php
--views
---layouts
----application.php
---dashboards
----index.php
Controller
class Dashboards extends CI_Controller
{
public function __construct()
{
parent::__construct();
$data = array();
$data['js'] = 'dashboards.js'
$data['css'] = 'dashbaord.css'
}
public function index()
{
$data = array();
$data['yield'] = 'dashboards/index';
$this->load->view('layouts/application', $data);
}
}
View
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8" />
<title>Some Title</title>
<link rel="stylesheet" href="<?php echo base_url(); ?>assets/css/app.css" />
<link rel="stylesheet" href="<?php echo base_url(); ?>assets/css/<?php echo $css; ?>" />
</head>
<body>
<header></header>
<section id="container" role="main">
<?php $this->load->view($yield); ?>
</section>
<footer></footer>
<script src="<php echo base_url(); ?>assets/js/app.js"></script>
<script src="<php echo base_url(); ?>assets/js/<?php echo $js; ?>"></script>
</body>
</html>
When you need to load different js, css or whatever in the header or footer use the __construct function to $this->load->vars
Kind of a rails like approach here

Or more complex, but makes life easy is to use more constants in boot.
So subclasses can be defined freely, and a single method to show view.
Also selected constants can be passed to javascript in the header.
<?php
/*
* extends codeigniter main controller
*/
class CH_Controller extends CI_Controller {
protected $viewdata;
public function __construct() {
parent::__construct();
//hard code / override and transfer only required constants (for security) server constants
//such as domain name to client - this is for code porting and no passwords or database details
//should be used - ajax is for this
$this->viewdata = array(
"constants_js" => array(
"TOP_DOMAIN"=>TOP_DOMAIN,
"C_UROOT" => C_UROOT,
"UROOT" => UROOT,
"DOMAIN"=> DOMAIN
)
);
}
public function show($viewloc) {
$this->load->view('templates/header', $this->viewdata);
$this->load->view($viewloc, $this->viewdata);
$this->load->view('templates/footer', $this->viewdata);
}
//loads custom class objects if not already loaded
public function loadplugin($newclass) {
if (!class_exists("PL_" . $newclass)) {
require(CI_PLUGIN . "PL_" . $newclass . ".php");
}
}
then simply:
$this->show("<path>/views/viewname/whatever_V.php");
will load header, view and footer.

I tried almost all the answers proposed on this page and many other stuff. The best option I finally keeped on all my websites is the following architecture:
A single view
I display only one view in the browser. Here is my main view (/views/page.php):
<?php defined('BASEPATH') OR exit('No direct script access allowed'); ?>
<!DOCTYPE html>
<html lang="en">
<head>
<?= $header ?? '' ?>
</head>
<body>
<div style="width:1200px">
<?= $content ?? '' ?>
</div>
</body>
</html>
Controllers deal with multiple views
Of course, I had several views but they are concatenated to build the $header and the $content variables. Here is my controller:
$data['header'] = $this->load->view('templates/google-analytics', '', TRUE)
.$this->load->view('templates/javascript', '', TRUE)
.$this->load->view('templates/css', '', TRUE);
$data['content'] = $this->load->view('templates/navbar', '', TRUE)
.$this->load->view('templates/alert', $myData, TRUE)
.$this->load->view('home/index', $myData, TRUE)
.$this->load->view('home/footer', '', TRUE)
.$this->load->view('templates/modal-login', '', TRUE);
$this->load->view('templates/page', $data);
Look how beautiful and clear is the source code.
You no longer have HTML markup opened in one view and closed in another.
Each view is now dedicated to one and only one stuff.
Look how views are concatenated: method chaining pattern, or should we say: concatanated chaining pattern!
You can add optional parts (for example a third $javascript variable at the end of the body)
I frequently extend CI_Controller to overload $this->load->view with extra parameters dedicated to my application to keep my controllers clean.
If you are always loading the same views on several pages (this is finally the answer to the question), two options depending on your needs:
load views in views
extend CI_Controller or CI_Loader
I'm so proud of this architecture...

A simple rewrite of #Landons MY_Loader, to include multiple files for the body, e.i. page unique sidebars...
<?php
class MY_Loader extends CI_Loader {
public function template($template_name, $vars = array(), $return = FALSE)
{
$content = $this->view('frontend/templates/header', $vars, $return);
if(is_array($template_name)) { //return all values in contents
foreach($template_name as $file_to_load) {
$content .= $this->view('frontend/'.$file_to_load, $vars, $return);
}
}
else {
$content .= $this->view('frontend/'.$template_name, $vars, $return);
}
$content .= $this->view('frontend/templates/footer', $vars, $return);
if ($return)
{
return $content;
}
}
}
This works both ways...
Including one file to template:
$data['moo'] = 'my data'];
$this->load->template('home', $data);
Include multiple files to template:
$data['catalog'] = 'catalog load 1';
$data['sidebar'] = 'sidebar load 2';
$load = array('catalog/catalog', 'catalog/sidebar');
$this->load->template($load, $data);

CodeIgniter-Assets is easy to configure repository to have custom header and footer with CodeIgniter I hope this will solve your problem.

Redefine the CI_Loader::view function by adding a file named as 'MY_Loader.php' in your application/core folder and adding the following content
/**
* /application/core/MY_Loader.php
*/
class MY_Loader extends CI_Loader
{
public function view($view, $vars = array(), $return = FALSE, $include_template=TRUE)
{
$header='';
$footer='';
if($include_template)
{
$header=parent::view('templates/header',$vars,$return);
}
$content=parent::view($view, $vars,$return);
if($include_template)
{
$footer=parent::view('templates/footer',$vars,$return);
}
if($return)
return "$header$content$footer";
return $this;
}
}

You can use your config.php file, and also use the power of helpers in CodeIgniter.
$config['header_css'] = array('style.css','prettyPhoto.css','nivo-slider.css');
$config['header_js'] = array('core.js','core.js',
'jquery-1.4.1.min.js',
'jquery-slidedeck.pack.lite.js',
'jquery-prettyPhoto.js',
'jquery.nivo.slider.js');
Source: https://jamshidhashimi.com/dynamically-add-javascript-and-css-files-in-codeigniter-header-page/

Here is how I handle mine. I create a file called template.php in my views folder. This file contains all of my my main site layout. Then from this template file I call my additional views. Here is an example:
<!doctype html>
<html lang="en">
<head>
<meta charset=utf-8">
<title><?php echo $title; ?></title>
<link href="<?php echo base_url() ;?>assets/css/bootstrap.min.css" rel="stylesheet" type="text/css" />
<link href="<?php echo base_url() ;?>assets/css/main.css" rel="stylesheet" type="text/css" />
<noscript>
Javascript is not enabled! Please turn on Javascript to use this site.
</noscript>
<script type="text/javascript">
//<![CDATA[
base_url = '<?php echo base_url();?>';
//]]>
</script>
</head>
<body>
<div id="wrapper">
<div id="container">
<div id="top">
<?php $this->load->view('top');?>
</div>
<div id="main">
<?php $this->load->view($main);?>
</div>
<div id="footer">
<?php $this->load->view('bottom');?>
</div>
</div><!-- end container -->
</div><!-- end wrapper -->
<script type="text/javascript" src="<?php echo base_url();?>assets/js/jquery-1.8.2.min.js" ></script>
<script type="text/javascript" src="<?php echo base_url();?>assets/js/bootstrap.min.js"></script>
</body>
</html>
From my controller, I will pass the name of the view to $data['main']. So I will do something like this then:
class Main extends CI_Controller {
public function index()
{
$data['main'] = 'main_view';
$data['title'] = 'Site Title';
$this->load->vars($data);
$this->load->view('template', $data);
}
}

I had this problem where I want a controller to end with a message such as 'Thanks for that form' and generic 'not found etc'.
I do this under views->message->message_v.php
<?php
$title = "Message";
$this->load->view('templates/message_header', array("title" => $title));
?>
<h1>Message</h1>
<?php echo $msg_text; ?>
<h2>Thanks</h2>
<?php $this->load->view('templates/message_footer'); ?>
which allows me to change message rendering site wide in that single file for any thing that calls
$this->load->view("message/message_v", $data);

This question has been answered properly, but I would like to add my approach, it's not that different than what the others have mentioned.
I use different layouts pages to call different headers/footers, some call this layout, some call it template etc.
Edit core/Loader.php and add your own function to load your layout, I called the function e.g.layout.
Create your own template page and make it call header/footer for you, I called it default.php and put in a new directory e.g. view/layout/default.php
Call your own view page from your controller as you would normally. But instead of calling $this-load->view use $this->load->layout, layout function will call the default.php and default.php will call your header and footer.
1)
In core/Loader.php under view() function I duplicated it and added mine
public function layout($view, $vars = array(), $return = FALSE)
{
$vars["display_page"] = $view;//will be called from the layout page
$layout = isset($vars["layout"]) ? $vars["layout"] : "default";
return $this->_ci_load(array('_ci_view' => "layouts/$layout", '_ci_vars' => $this->_ci_object_to_array($vars), '_ci_return' => $return));
}
2) Create layout folder and put default.php in it in view/layout/default.php
$this->load->view('parts/header');//or wherever your header is
$this->load->view($display_page);
$this->load->view('parts/footer');or wherever your footer is
3) From your controller, call your layout
$this->load->layout('projects');// will use 'view/layout/default.php' layout which in return will call header and footer as well.
To use another layout, include the new layout name in your $data array
$data["layout"] = "full_width";
$this->load->layout('projects', $data);// will use full_width.php layout
and of course you must have your new layout in the layout directory as in:
view/layout/full_width.php

Using This Helper For Dynamic Template Loading
// get Template
function get_template($template_name, $vars = array(), $return = FALSE) {
$CI = & get_instance();
$content = "";
$last = $CI - > uri - > total_segments();
if ($CI - > uri - > segment($last) != 'tab') {
$content = $CI - > load - > view('Header', $vars, $return);
$content. = $CI - > load - > view('Sidebar', $vars, $return);
}
$content. = $CI - > load - > view($template_name, $vars, $return);
if ($CI - > uri - > segment($last) != 'tab') {
$content. = $CI - > load - > view('Footer', $vars, $return);
}
if ($return) {
return $content;
}
}

i had reached for this and i hope to help all create my_controller in application/core
then put this code in it with change as your file's name
<?php
defined('BASEPATH') OR exit('No direct script access allowed');
// this is page helper to load pages daunamically
class MY_Controller extends CI_Controller {
function loadPage($user,$data,$page='home'){
switch($user){
case 'user':
$this->load->view('Temp/head',$data);
$this->load->view('Temp/us_sidebar',$data);
$this->load->view('Users/'.$page,$data);
$this->load->view('Temp/footer',$data);
break;
case 'admin':
$this->load->view('Temp/head',$data);
$this->load->view('Temp/ad_sidebar',$data);
$this->load->view('Admin/'.$page,$data);
$this->load->view('Temp/footer',$data);
break;
case 'visitor';
$this->load->view('Temp/head',$data);
$this->load->view($page);
$this->load->view('Temp/footer',$data);
break;
default:
echo 'wrong argument';
die();
}//end switch
}//end function loadPage
}
in your controller
use this
class yourControllerName extends MY_Controller
note : about name of controller prefix you have to be sure about your prefix on config.php file
i hope that give help to any one

Populate a div with online users in CodeIgniter using Ajax call (updated every 10 sec)

I need to populate a div with records from my database,every 10 seconds, using Ajax calls. I know I must create a JSON object first, and then pass it to the Ajax function. That's what I tried.
//Updated source
The code is below:
Controller
<?php
if ( ! defined('BASEPATH')) exit('No direct script access allowed');
class HomePage extends CI_Controller {
public function index()
{
$this->load->model('home_page_model');
$data['query'] = json_encode($this->home_page_model->onlineUsers());
$this->load->view('homepage', $data);
}
public function AjaxUsers()
{
//When I placed here the following, got an errow about query variable not defined
//the problem is the $data variable which when not loaded with the view
//throws en error. I don't know what to do further...
//$this->load->model('home_page_model');
//$data['query'] = json_encode($this->home_page_model->onlineUsers());
}
}
?>
Model
<?php
class home_page_model extends CI_Model {
function __construct() {
parent::__construct();
}
function onlineUsers() {
$this -> db -> select('user_name,status,thumb') -> from('users') -> where('status', 'Online');
$query = $this -> db -> get();
if ($query -> num_rows > 0) {
return $query -> result();
} else {
'There are no results';
}
}
}
?>
And finally my View
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Welcome!</title>
<link rel="stylesheet" type="text/css" href="<?php echo base_url() ?>css/csustyles.css" />
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.8.2/jquery.min.js"></script>
<script type="text/javascript">
setInterval(function()
{
$('.user-records').load('<?php echo base_url()?>index.php/HomePage/');
}, 1000);
</script>
</head>
<body>
<div id="container">
<h1>Welcome to CodeIgniter!</h1>
<div id="body">
<div class="user-records"></div>
</div>
<p class="footer">
Page rendered in <strong>{elapsed_time}</strong> seconds
</p>
</div>
</body>
</html>

You need to make an AJAX controller that will actually output the needed data.
Let's call it ajax_controller (though it can also be a method in your existing controller, like homepage->online_users_ajax, it doesn't have to be a separate controller).
Then, you need to call your new controller every 10 seconds using Javascript (jQuery). Here's an example of jQuery code without the timer:
$('.online-users').load('<?php echo base_url('ajax_controller'); ?>');
So, the point is that ajax_controller is rendering the content and jQuery populates your existing div with the rendered data.

Your only interested in the data to fill a div, so an ajax controller with no view output is ideal, unless you didn't want to parse the json object in javascript via some sort of template library :?
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
class Ajax_Controller extends CI_Controller{
public function __construct(){
parent::__construct();
}
public function online_users(){
//load the model
//
$this->load->model('UserModel');
//grab the data
$data = &$this->UserModel->usersOnline();
if(!$data)//expecting array/object or boolean
{
echo json_encode(array(
'error' => 1
));
}
//send to the browser
$this->output
->set_content_type('application/json')
->set_output(json_encode(array(
'error' => 0,
'data' => $data
)));
}
}
-
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
class UserModel extends CI_Model{
public function __construct(){
parent::__construct();
}
/**
* usersOnline
*
* #return mixed (boolean or array/object)
* #throws Exception
*/
public function usersOnline(){
try
{
$data = $this->db
->select('user_name, status, thumb')
->from('users')
->where('status', 'online')
->get();
if( !$data OR !$data->num_rows > 0)
throw new Exception('No data found from last request__ ' . __CLASS__ . __METHOD__);
}
catch(Exception $e)
{
log_message('error', $e->getMessage());
return false;
}
//we must have data?
return $data;
}
}
-
$route['users-online'] = 'ajax_controller/online_users';
-
<!-- Add this to head section -->
<script>
//Assign base_url as a global variable
var BASEURL = "<?= base_url() ?>";
</script>
-
<div id="usersOnline"></div>
<script>
(function($){
var ajaxRequests = {
init : function(){
if(document.getElementById('usersOnline'))
{
this.onlineUsers;
}
},
onlineUsers : function(){
var scope = $("#usersOnline");
//ajax setup
var doAjax = function(div){
$.ajax({
url : BASEURL + "users-online",
type: 'GET',
context : div,
beforeSend : function(){
$(this).html("<span class='loading-icon'> </span>");
},
success : function(callback){
if(callback.error == 1)
{
return;
}
//$(this) == context => #usersOnline
//
//obviously the json object needs to be parsed first!!!!!!!
//
$(this).html(callback.data);
}
});
}
//run and run
window.setInterval(function(){
doAjax(scope);
}, 1000);
}
}
//ready?
$(function(){
ajaxRequests.init();
});
})(jQuery);
</script>

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