index function for ProgramHistoryController

public function index()
    {
        $this->set('filterFieldOptions',$this->filterFieldOptions);
        $this->set('filterTypeConditionsOptions',$this->filterTypeConditionsOptions);
        $this->set('filterStatusConditionsOptions',$this->filterStatusConditionsOptions);
        $this->set('programTimezone', $this->Session->read($this->params['program'].'_timezone'));
        
        if ($this->params['ext'] == 'csv' or $this->params['ext'] == 'json') {
            $statuses = $this->History->find('all', array('conditions' => $this->_getConditions(),
                'order'=> array('timestamp' => 'DESC')
                ));
            $this->set(compact('statuses')); 
        } else {   
            $this->paginate = array(
                'all',
                'conditions' => $this->_getConditions(),
                'order'=> array('timestamp' => 'DESC')
            );
            
            $statuses = $this->paginate();
            $this->set(compact('statuses'));
        }
    }