在smarty中獲取foreach循環的數據

Question

我想用smarty來建立一個新的網站，但我有一個小問題，從sql查詢分配數據到smartyt foreach循環。我沒有從查詢中獲取任何數據到我的模板。

在我class.designs.php我有這樣的：

function listAllDesigns() { 
      global $db; 

      $row = $db->query(" 
SELECT ds.*, count(com.comment) AS countcom 
FROM designs ds LEFT JOIN comments com ON com.design_id = ds.id 
WHERE ds.approved = 1 
GROUP BY ds.id 
ORDER BY ds.date_added ASC")->resultset();   

      $smarty = new Smarty;   
      $smarty->assign('designs', $row); 

      return;   
     } 

和我的index.php

include_once("includes/connect.php"); //Database connection 
include_once("includes/config.php"); //Configuration file 
include_once("includes/classes/class.designs.php"); //Main design class 

require('smarty/libs/Smarty.class.php'); 

$designs = new Designs(); 
$designs->listAllDesigns(); 

$smarty = new Smarty; 
$smarty->debugging = true; 
$smarty->caching = true; 
$smarty->cache_lifetime = 120; 

$smarty->assign("charset", $config->charset); 
$smarty->assign("pagetitle", $config->pagetitle); 
$smarty->display('index.tpl'); 

，並在index.tpl我有這樣的：

{foreach $designs as $r} 
    <li>{$r.name}</li> 
{foreachelse} 
    No results 
{/foreach} 

它只是打印「沒有結果」，我得到了「未定義的索引設計」錯誤。

Answer 1

include_once("includes/connect.php"); //Database connection 
include_once("includes/config.php"); //Configuration file 
include_once("includes/classes/class.designs.php"); //Main design class 

require('smarty/libs/Smarty.class.php'); 

$designs = new Designs(); 
$designs->listAllDesigns(); 

$smarty = new Smarty; 
$smarty->debugging = true; 
$smarty->caching = true; 
$smarty->cache_lifetime = 120; 

// TO USE some value ($designs in your case) at your template you must assign it 
// 1st is its name and 2nd is the value 
$smarty->assign("designs", $designs); 

$smarty->assign("charset", $config->charset); 
$smarty->assign("pagetitle", $config->pagetitle); 
$smarty->display('index.tpl');