如何在我自己的插件中使用Joomla Ajax接口

Question

我正在为Joomla 3开发一个自定义插件.我正在尝试对我的插件进行ajax调用.我查看了Joomla Ajax界面并按照所描述的内容进行了操作.但是当我进行调用时,即使我正在回显一个值,json响应也是空的.

这是我的PHP代码:

class plgContentMyPlugin extends JPlugin
{
    public static function onAjaxSendMail()
    {
        //Get the app
        $app = JFactory::getApplication();

        $data = "test";

        //echo the data
        echo json_encode($data);

        //close the $app
        $app->close();
    }
}

这是我的Ajax请求:

jQuery.ajax(
{
    type: "POST",
    url: "index.php?option=com_ajax&plugin=myplugin&method=onAjaxSendMail&format=json",
    success: function(data)
    {
         var response = jQuery.parseJSON(data);
         console.log(response);
    }
});

当我收到响应时,数据变量包含一个空数组.

我究竟做错了什么？谢谢.

Answer 1

以下是触发ajax调用的代码 -

JPluginHelper::importPlugin('ajax');
$plugin     = ucfirst($input->get('plugin'));
$dispatcher = JEventDispatcher::getInstance();

try
{
    $results = $dispatcher->trigger('onAjax' . $plugin);
}
catch (Exception $e)
{
    $results = $e;
}   

第一行说插件应该是ajax类型,并且在代码中应该是内容类型.根据文档,方法和类名约定也不正确 -

The plugin class name following the plgAjax[Name] convention.
The plugin function name following the onAjax[Name] convention.

因此需要首先改变它 -

<?php defined('_JEXEC') or die;

// Import library dependencies
jimport('joomla.plugin.plugin');

class plgAjaxMyplugin extends JPlugin
{

    function onAjaxMyplugin()
    {

        $data = array("test");
        return $data;

    }
}

// jQuery的

jQuery.ajax(
    {
        type: "POST",
        url: "index.php?option=com_ajax&plugin=myplugin&format=json",
        success: function(data)
        {
             //var response = jQuery.parseJSON(data);
             console.log(data);
        }
    });

// XML

<?xml version="1.0" encoding="utf-8"?>
<extension version="2.5"
           type="plugin"
           group="ajax"
           method="upgrade">
    <name>Ajax - Myplugin</name>
    <version>0.1</version>
    <creationDate>Jan 28, 2015</creationDate>
    <author>test</author>
    <authorEmail>admin@change.me</authorEmail>
    <authorUrl>http://www.test.com</authorUrl>
    <license>GNU General Public License version 2 or later</license>
    <copyright>Copyright (C) 2013 betweenbrain llc. All rights reserved.</copyright>
    <description>Joomla Ajax Plugin</description>

    <files>
        <filename plugin="myplugin">myplugin.php</filename>
    </files>

</extension>