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Smarty
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mellowonpsx Smarty Rookie
Joined: 03 Jan 2008 Posts: 5
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Posted: Fri Jan 04, 2008 11:34 am Post subject: Smarty & Ajax |
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Stavo iniziando a lavorare con ajax e smarty. Siccome xajax funziona bene (di solito) ho pensato di integrare le due classi.
Il codice prodotto è questo:
index.php
Code: | <?php
include_once("common_smarty.php");
include_once("common_xajax.php");
//--xajax--//
$xajax = inizializzaXajax();
$xajax->registerFunction("myFunction");
$xajax->processRequest();
//--smarty--//
$smarty = inizializzaSmarty();
$smarty->assign("title","Benvenuto");
$smarty->assign("xajax_javascript",$xajax->getJavascript("xajax/"));
$smarty->display("index.tpl");
?> |
common_ajax.php
Code: |
<?php
include_once("config.php");
include_once("auth.lib.php");
include_once("common_page.inc.php");
include_once("common_db.inc.php");
define("XAJAX_DIR", "./xajax/");
require(XAJAX_DIR."xajax.inc.php");
function inizializzaXajax()
{
$xajax = new xajax();
$xajax->debugOn();
$xajax->statusMessagesOn();
return $xajax;
}
function myFunction($arg)
{
$newContent = "Value of \$arg: ".$arg;
$objResponse = new xajaxResponse();
$objResponse->assign("SomeElementId","innerHTML", $newContent);
return $objResponse;
}
?> |
common_smarty.php
Code: | <?php
include_once("config.php");
include_once("auth.lib.php");
include_once("common_page.inc.php");
include_once("common_db.inc.php");
define("SMARTY_DIR", "./Smarty/Libs/");
require(SMARTY_DIR."Smarty.class.php");
function inizializzaSmarty()
{
$smarty = new Smarty();
$smarty->template_dir = "templates/";
$smarty->compile_dir = "templates_c/";
$smarty->config_dir = "configs/";
$smarty->cache_dir = "cache/";
return $smarty;
}
?> |
index.tlp
Code: | {* Smarty *}
{include file="header.tpl" title="Homepage"}
<div id="SomeElementId">
</div>
<div id="Button">
<button onclick="xajax_myFunction('It worked!');"> Clicca </button>
</div>
{include file="footer.tpl"} |
header.tlp
Code: |
{* Smarty Header *}
<html xmlns="http://www.w3.org/1999/xhtml" lang="it">
<head>
<title>AX.SY - AjaX SmartY (mellowonpsx project) / page {$title|nl2br} </title>
<meta http-equiv="content-type" content="text/html; charset=UTF-8" />
<link rel="stylesheet" type="text/css" href="css/stilebase_ie.css" />
<!--[if !IE]><!-->
<link rel="stylesheet" type="text/css" href="css/stilebase.css" />
<!--<![endif]-->
{$xajax_javascript}
</head>
<body>
<div id="testa">
<p class="testo">
{$title|nl2br}
</p>
</div>
{* End of Smarty Header *} |
Il footer non ha importanza perchè non fa nulla.
Il problema è che quando schiaccio il bottone viene fuori un errore:
Code: | Received: <br /> <b>Notice</b>: Undefined variable: sResponse in <b>c:\programmi\easyphp1-8\www\ax.sy\xajax\xajax.inc.php</b> on line <b>747</b><br /> <br /> <b>Warning</b>: Cannot modify header information - headers already sent by (output started at c:\programmi\easyphp1-8\www\ax.sy\xajax\xajax.inc.php:747) in <b>c:\programmi\easyphp1-8\www\ax.sy\xajax\xajax.inc.php</b> on line <b>763</b><br /> <?xml version="1.0" encoding="utf-8" ?><xjx><cmd n="as" t="SomeElementId" p="innerHTML">Value of $arg: It worked!</cmd></xjx> |
Any idea? |
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flatfield Smarty Rookie
Joined: 30 Apr 2007 Posts: 18 Location: Genova (Italy)
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Posted: Fri May 23, 2008 4:04 pm Post subject: |
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Generalmente l'errore
"Cannot modify header information"
compare quando si è già scritto del codice "a video", cioè HTML o con "print" PHP e si tenta di eseguire un comando PHP di questo tipo
header("location:index.php");
Tale comando, o altri che modificano l'header, devono comparire prima di qualsiasi output |
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