找不到JFactory

Question

我在Joomla中创建了一个外部文件getuser.php并将其放在administrator/getuser.php

包含数据库查询

<?php
$q=$_GET["q"];
$db = JFactory::getDBO();
// Create a new query object.
$query = $db->getQuery(true);
$query->select($db->nameQuote('product_name'));
$query->from('#__virtuemart_products_en_gb');
$query->where($db->nameQuote('virtuemart_product_id').' = '.$db->quote($q));
$db->setQuery($query);
$result = $db->loadResult();

  echo "<tr>";
  echo "<td>" . $result['product_name'] . "</td>";
  echo "</tr>";
?>

并product_edit_information.php使用位于administrator/components/com_virtuemart/views/product/tpl/product_edit_information.php的ajax 调用它

代码是

<form>
<select name="users" onChange="showUser(this.value)">
<option value="">Select a person:</option>
<option value="7745">YA Ali</option>
<option value="7746">Qasim</option>
</select>
</form>
<br />
<div id="txtHint"><b>Person info will be listed here.</b></div>
<script>
function showUser(str)
{
if (str=="")
  {
  document.getElementById("txtHint").innerHTML="";
  return;
  }
if (window.XMLHttpRequest)
  {// code for IE7+, Firefox, Chrome, Opera, Safari
  xmlhttp=new XMLHttpRequest();
  }
else
  {// code for IE6, IE5
  xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
  }
xmlhttp.onreadystatechange=function()
  {
  if (xmlhttp.readyState==4 && xmlhttp.status==200)
    {
    document.getElementById("txtHint").innerHTML=xmlhttp.responseText;
    }
  }
xmlhttp.open("GET","getuser.php?q="+str,true);
xmlhttp.send();
}
</script>

错误是

致命错误:第3行的C:\ xampp\htdocs\bc22\administrator\getuser.php中找不到类'JFactory'

我在joomla中添加外部文件的原因是什么？

我也经历过这个但是无法理解...... http://docs.joomla.org/Adding_AJAX_to_your_component

defined('_JEXEC') or die('Restricted access'); 

当我把它放在getuser.php的顶部时,它会给我错误

禁止进入

当我 echo $q=$_GET["q"]; // output 7745 and 7746

 <option value="7745">YA Ali</option>
 <option value="7746">Qasim</option>

但是在找不到jFactory错误之后

抱歉我的英语不好

Answer 1

您应该在代码顶部添加此代码:

define('_JEXEC', 1);
define('DS', DIRECTORY_SEPARATOR);

if (file_exists(dirname(__FILE__) . '/defines.php')) {
    include_once dirname(__FILE__) . '/defines.php';
}

if (!defined('_JDEFINES')) {
    define('JPATH_BASE', dirname(__FILE__));
    require_once JPATH_BASE.'/includes/defines.php';
}

require_once JPATH_BASE.'/includes/framework.php';
require_once JPATH_BASE.'/includes/helper.php';
require_once JPATH_BASE.'/includes/toolbar.php';

问题是你没有包含Joomla框架和使用JFactory.如果任何函数包含错误,则应包含该函数的Joomla路径.
Restricted access问题解决了define('_JEXEC', 1);