简单的elgg 开源系统下的helloworl插件开发

插件目录大致如下图所示

start.php 是一个插件的入口跟识别文件

 

建立相关文件之后 进入admin管理后台 -plugin 设置中激活 helloworld插件。

 

pages目录跟views目录分别充当着控制器跟视图的角色 

 

代码如下：

 

<?php
/**
** hello world 插件
*start.php
*/
elgg_register_event_handler('init', 'system', 'hello_word_init');       


function hello_word_init() {   
    elgg_register_page_handler('hello', 'hello_page_handler');
    $item = new ElggMenuItem('hello', 'Hello', 'hello/world');
	elgg_register_menu_item('site', $item);
	elgg_register_menu_item('page', array(
	'name' => 'world',
	'text' => 'Hello world',
	'href' => 'hello/world',
	'contexts' => array('hello'),
	));
	elgg_register_menu_item('page', array(
	'name' => 'dolly',
	'text' => 'Hello dolly',
	'href' => 'hello/dolly',
	'contexts' => array('hello'),
	));

}
function hello_page_handler($page, $identifier) {
	$plugin_path = elgg_get_plugins_path();
	$base_path = $plugin_path . 'hello_world/pages/hello_world';
	switch ($page[0]) {
		case 'world':
		require "$base_path/world.php";
		break;
		case 'dolly':
		require "$base_path/dolly.php";
		break;
		default:
		echo "request for $identifier $page[0]";
		break;
	}
	// return true to let Elgg know that a page was sent to browser
	return true;
	
}
//end file of start.php

<?php
/**
 * dolly.php
 */
 
 $user = elgg_get_logged_in_user_entity();
$title = "My second page";
$content = 'hello dolly';
$vars = array(
'content' => $content,

);
$body = elgg_view_layout('one_sidebar', $vars);
echo elgg_view_page($title, $body);

//end file of dolly.php

<?php
/**
 * world.php
 */
$time=date('Y-m-d H:i:s',time());
$title = "My first page";
//$content = "Hello, World! <br>".$time;
$content=elgg_echo('hello:word');
$vars = array(
'content' => $content,

);
$body = elgg_view_layout('one_sidebar', $vars);
echo elgg_view_page($title, $body);
//end file of wolrd.php

<?php
/**
 * 语言包
 */
$english = array(
	'hello:word'=>'您好!!',
	
);
add_translation("en", $english);
?>