root/trunk/app/controllers/topics_controller.php

<?php
/**
*  Karamelo E-Learning Platform
*  Manuel Montoya 2002-2008
*  GPLv3 manuel<at>mononeurona<punto>org
*  @version 0.3
*/

App::import('Sanitize');

class TopicsController extends AppController {

 public $helpers       = array('Ajax', 'Time', 'Fck'); 
 
 public $components    = array('Edublog');
 
 public function beforeFilter() 
 {   
   parent::beforeFilter();

   if ( $this->Auth->user() ):
      $this->Auth->allow(array('display', 'add', 'reply'));
   endif;
 }

 public function display($user_id, $forum_id, $topic_id)
 {  
  $this->pageTitle = __('Discussion', true);
     
  $this->layout    = $this->Edublog->layout($user_id);
     
  $this->Edublog->blog($user_id);
   
  $vclassroom_id = $this->Topic->Forum->field('vclassroom_id', array('Forum.id'=>$forum_id));
  // student belongst to this class?
  if ( $this->Auth->user() ):
             $this->set('belongs', $this->Topic->Forum->Vclassroom->belongs($this->Auth->user('id'), $vclassroom_id));
  else:
             $this->set('belongs', false);
  endif;
  
   $conditions = array("Topic.status"=>1, "Topic.id"=>$topic_id);
   $fields     = null;
   $order      = "Topic.created DESC";
     
   $this->Topic->User->unbindModel(array('hasMany'=>array('Category', 'Faq', 'Lesson', 'Entry', 'Acquaintance', 'Vclassroom')));
   $this->Topic->Forum->unbindModel(array('hasMany'=>array('Topic')));
   $data =  $this->Topic->find($conditions, $fields, $order, 2);
   
   $this->set('data',$data);

   if ( !$this->Session->check('topic'.$topic_id)  ): // add 1 to visit 
        $this->Topic->addVisitor($topic_id, $this->Auth->user('id'));
        $this->Session->write('topic'.$topic_id,  $topic_id); //set session, only one visit per session
   endif;
 }
  
 public function add($vclassroom_id = null, $forum_id = null) 
 {
   $this->layout='ajax';

   if (!empty($this->data['Topic'])):

     Sanitize::clean($this->data['Topic']);
     
     $this->data['Topic']['user_id'] = $this->Auth->user('id');
     
     if ($this->Topic->save($this->data)): 
          $this->msgFlash('Topic added', '/forums/display/'.$this->data['Topic']['forum_id'].'/'.$this->data['Topic']['vclassroom_id']);
     endif;
   else:
         $this->set('forum_id', $forum_id);
         $this->set('vclassroom_id', $vclassroom_id);
   endif; 
 }
 
 public function reply($vclassroom_id, $forum_id, $topic_id, $blogger_id) 
 {
       // adds new reply to topic
       
       $this->layout    = 'ajax';
       
       $this->set('forum_id',      $forum_id);
       $this->set('topic_id',      $topic_id);
       $this->set('blogger_id',    $blogger_id);
       $this->set('vclassroom_id', $vclassroom_id);
 }
 
 /*** ===   ADMIN METHODS ===********/
 public function admin_listing($topic_id)
 {
  $this->layout    = 'admin';
        
  $this->pageTitle = 'Topics';
        
  $conditions = array("Topic.user_id"=>$this->Auth->user('id'), "Topic.id"=>$topic_id);
        
  $fields     = array("id", "subject", "message", "status", "created");
        
  $this->set('data', $this->Topic->find($conditions, $fields, null, 2));     
 }
 
 public function admin_edit($topic_id = null)
 {
   if (empty($this->data['Topic'])):   
           $this->data = $this->Topic->read(null, $topic_id);
  else:
     if ($this->Topic->save($this->data['Topic'])):
              $this->msgFlash('Your virtual classroom  has been updated.','/vclassrooms/');
     endif;
  endif;
 }
 
 // change status published/draft
 public function admin_change($id, $status, $forum_id)
 {  
    if ( !intval($id) ||  !is_numeric($status)  ||  !intval($forum_id) )
    { 
      $this->redirect('/');
    }
    
    $this->data['Topic']['status'] = ($status == 0 ) ? 1 : 0;
     
    $this->data['Topic']['id']     = $id;
     
    if ($this->Topic->save($this->data['Topic'], array('validate'=>false))):
       $this->msgFlash(__('Status modified', true), '/admin/forums/topics/'.$forum_id);
    endif;
 }
 
 public function admin_reply($reply_id) 
 {
   $this->layout = 'popup';
   
   $conditions   = array('Reply.id'=>$reply_id);

   $this->set('data', $this->Topic->Reply->find($conditions));
 }

 public function admin_delete($topic_id, $forum_id)
 {
     if ( $this->Topic->del($topic_id) ):
        $this->msgFlash('Topic deleted','/admin/forums/topics/'.$forum_id);
     endif;
 } 
}