application/controllers/StatsController.php


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<?php

class StatsController extends Zend_Controller_Action
{

    public function init()
    {
        $this->_helper->layout->disableLayout();
		$this->_helper->viewRenderer->setNoRender();
    }
    
    public function graphgroupAction(){
    	
		$userIDsNamespace = Zend_Session::namespaceGet('userIDs');
		
		if($userIDsNamespace['groupID'] !=''){
			header("Content-Type: image/png"); 
    
			$n = new Pbs_Graph();
		    $str =  'echo "';
		    $str .=  $n->graph($userIDsNamespace['groupID']);
		    $str .=  '" | dot -Tpng  ';		    
		    
		    passthru($str);		    
		}		
    }
}