How to assign an array contact details view template???

controller file view.details.php
class ContactsViewDetail extends ViewDetail
{
/**
* @see SugarView::display()
*
* We are overridding the display method to manipulate the portal information.
* If portal is not enabled then don’t show the portal fields.
*/
public function display(){
global $sugar_config;

	$aop_portal_enabled = !empty($sugar_config['aop']['enable_portal']) && !empty($sugar_config['aop']['enable_aop']);
    //echo '<pre>===='; print_r($aop_portal_enabled); exit; 
	$this->ss->assign("AOP_PORTAL_ENABLED", $aop_portal_enabled);

	require_once('modules/AOS_PDF_Templates/formLetter.php');
	formLetter::DVPopupHtml('Contacts');

	$admin = new Administration();
	$obj         = new AirtelUserInfo();
	$res         = $obj->test();
	
	$sql = 'select * from contacts';
	
	//$result = $this->db->query($sql,true," Error filling in additional detail fields: ");

	// Get the id and the name.
	//$row = $this->db->fetchByAssoc($result);
	
	//echo '<pre>'; print_r($sql); exit;
	 
    
	$this->ss->assign("res", $res);
   
	$admin->retrieveSettings();
	if(isset($admin->settings['portal_on']) && $admin->settings['portal_on']) {
		$this->ss->assign("PORTAL_ENABLED", true);
	}
	parent::display();
}

}

tempalte file Detailview.template