Thread

If you use Modular Extensions HMVC then you can load the Widget class as a plugin as described in this thread. Otherwise you should load the Widget class as a helper.

thank you,

I did not realize, HMVC are provide legacy plugin function. may be it worth to mention on the HMVC wiki 😉

@Keat Liang, To be honest I have assumed developers would look through the Modular Extensions HMVC code base and see what methods and functionality is available in each of the classes, and if they needed clarification they would ask.

Thank you wiredesignz for code and support.
I have slightly modified the code to each widget has been placed in its directory:

<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
/**
 * Widget Helper
 *
 * <a href="http://ellislab.com/forums/viewthread/109584/">http://ellislab.com/forums/viewthread/109584/</a>
 * 
 * Install this file as application/helpers/widget_helper.php
 *
 * @version:     0.2m
 * $copyright    Copyright (c) Wiredesignz 2009-08-24
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 *
 * @modified by jen <[email protected]> 2012-03-13
 * @to place each widget in its directory
 */
class Widget
{
 private static $name;
 
 function run($name) {
 
  self::$name = $name;
  
  $args = func_get_args();
  
  require_once APPPATH.'widgets/'.$name.'/index'.EXT;
  $name = ucfirst($name);
  
  $widget = new $name();
  return call_user_func_array(array($widget, 'run'), array_slice($args, 1));    
 }
 
 function render($data = array()) {
 
  extract($data);
  include APPPATH.'widgets/'.self::$name.'/view'.EXT;
 }
 
 function load($object) {
 
  $this->$object =& load_class(ucfirst($object));
 }
 
 function __get($var) {
 
  static $ci;
  isset($ci) OR $ci = get_instance();
  return $ci->$var;
 }
}

/* End of file widget_helper.php */
/* Location: ./application/helpers/widget_helper.php */

Change the file name to widget_helper.php and relocate the file to application/helpers.

1. Create a directory with the name of the widget in the /application/widgets .

2. Place there
  index.php - widget class file (Class has the same name as the directory)
  view.php

Notice that render() method now get only one argument - $data.

It looks like

/application/widgets/

  my_widget/

      index.php
      view.php

Thanks very much for this code, works perfect! :cheese:

I extended it a bit so I can keep with the MVC theme and keep my data function in own widget model.

Simply add following (probably better way, but works for me)

function model($model=''){
        if(!$model){  // if no model defined, just load the one in the widget folder
        $this->load->model('../widgets/'.self::$name.'/'.self::$name.'_model');  //calls widget_name_model , 
        }else { //load supplied model
         $this->load->model('../widgets/'.self::$name.'/'.$model);  //calls widget_name_model, 
        }

           
    }

to use it:

$this->model(); //load default model.
//or $this->model('model_name')

Just reference model as normal in your code

$this->widget_name_model->test(); //calls test() function.

Hello Wiredesignz.

Really great job, congratulation 😊 .
So my question is, how can I use your widget system if I want to apply the HMVC architecture ? .

Thanks in advance

Widgets have no specific relation to the HMVC architecture other than supporting the (MVC) View component as partials.

Thanks for your fast reply.
I try to make a test ,using widget_helper.php and your example in the first page’User_login’.
I fellow the steps, like in the jen’s post, but I get this error:
 
input->post(‘loginform’)) { if ($post['username'] == 'admin') { $query = $this->db->query("SELECT uid FROM user WHERE username='admin'"); $result = $query->row(); set_cookie('ci_user', $result->uid, 86500); redirect(); } } if ($visible) $this->render(‘user_login’); } }application/widgets/User_login/index.php
Fatal error:
Class ‘User_login’ not found in C:\xampp\htdocs\application\helpers\widget_helper.php on line 49

but When copy and past the class of the’ User_login’ in the ‘widget_helper’, the view is rendred but I get this:

input->post(‘loginform’)) { if ($post['username'] == 'admin') { $query = $this->db->query("SELECT uid FROM user WHERE username='admin'"); $result = $query->row(); set_cookie('ci_user', $result->uid, 86500); redirect(); } } if ($visible) $this->render(‘user_login’); } }

A PHP Error was encountered

Severity: Warning

Message: extract() expects parameter 1 to be array, string given

Filename: helpers/widget_helper.php

Line Number: 69

I’m working on the Project of the End of Studies and I really need your help
I’m waiting for your answer as soon as possible.

Thanks

Hi,

Sorry about resurrecting this, but I thought it would be more appropriate than starting new topic.

So basically if i use the:

$autoload[‘plugin’] = array(‘widget’);

I get the fatal error: class widget not found (in my view file).

I managed to get it to work by adding this line to the autoload.php file:

include(APPPATH."plugins/widget_pi.php");

But even though I am not CI hacker, I have a feeling I should not be doing this (even though it appears to be working). I am using the 3.0-dev version (not sure what the dev means here.. i just donloaded it from CI homepage, this is the value of “CI_VERSION”...

So anyway can I leave it the way it is? Or should I fix it? And if latter is true, any ideas how could I make it work in standard way?

Plugins have been deprecated since CI 2.0.0

You could convert the widget plugin into a helper or library as needed.

Or you could extend the CI_Loader library with a plugin loader method.

Such as follows which is copied from CI1.7.2 but not tested in CI2.1.x or CI3.0

EDIT: Also note that the EXT constant has been deprecated now so you’ll need to replace all occurrences of EXT in the widget plugin with ‘.php’

class MY_Loader extends CI_Loader {
 
 public $_ci_plugins = array();
 
 /**
  * Load Plugin
  *
  * This function loads the specified plugin.
  *
  * @access public
  * @param array
  * @return void
  */
 function plugin($plugins = array())
 {
  if ( ! is_array($plugins))
  {
   $plugins = array($plugins);
  }
 
  foreach ($plugins as $plugin)
  { 
   $plugin = strtolower(str_replace('.php', '', str_replace('_pi', '', $plugin)).'_pi');  

   if (isset($this->_ci_plugins[$plugin]))
   {
    continue;
   }

   if (file_exists(APPPATH.'plugins/'.$plugin.'.php'))
   {
    include_once(APPPATH.'plugins/'.$plugin.'.php'); 
   }
   else
   {
    if (file_exists(BASEPATH.'plugins/'.$plugin.'.php'))
    {
     include_once(BASEPATH.'plugins/'.$plugin.'.php'); 
    }
    else
    {
     show_error('Unable to load the requested file: plugins/'.$plugin.'.php');
    }
   }
   
   $this->_ci_plugins[$plugin] = TRUE;
   log_message('debug', 'Plugin loaded: '.$plugin);
  }  
 }
}

Thanks for your help! I knew that plugins was probably not supported anymore when I needed to create my own directory for it lol

I just ended up making it into a helper! Thanks for your help! 😊

Hi,

a quick question:
How can i use jquery or ajax within a view of the widget?

I need to update some data which comes from db in a widget view periodicaly, so i have to send a flag in setInterval to the widget controller.

e.g. a friendslist-widget

how does that work?
how do i have tu set the ajax request url?

thanks for ur work..