如何在Codeigniter中创建窗口小部件系统 [英] How to create a widget system in Codeigniter
问题描述
我在Codeigniter中创建一个自定义CMS,我想要一个类似于Wordpress中使用的widget系统。
I am creating a custom CMS in Codeigniter and I'd like to have a widget system similar to what is used in Wordpress.
例如,喜欢有一个小部件显示最后5个帖子显示在侧边栏。
For example, I'd like to have a widget that shows the last 5 posts displayed on the sidebar. I'd also like to be able to control what pages this widget appears on page-by-page basis.
我使用的是 Phil Sturgeon的模板库,因此示例控制器如下所示:
I am using Phil Sturgeon's Template library, so an example controller looks like:
$this->template->set_partial('header', 'layouts/header');
$this->template->set_partial('footer', 'layouts/footer');
$this->template->set_partial('sidebar', 'layouts/sidebar');
$this->data['title'] = "Create Post";
$this->template->build('create', $this->data);
我想坚持使用MVC模式,所以我不想把逻辑侧边栏视图,这是我现在可以想到的唯一的东西。
I'd like to stick with the MVC pattern, so I don't want to put logic in the sidebar view, which is the only thing I can think of right now.
我应该为此使用HMVC吗?
Is HMVC something I should be using for this?
如何告诉侧边栏哪些小部件要显示?
How can I tell the sidebar which widgets to display?
推荐答案
以下是 Wiredesignz
/**
* Widget Plugin
*
* Install this file as application/plugins/widget_pi.php
*
* @version: 0.21
* $copyright Copyright (c) Wiredesignz 2009-09-07
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
class Widget
{
public $module_path;
function run($file) {
$args = func_get_args();
$module = '';
/* is module in filename? */
if (($pos = strrpos($file, '/')) !== FALSE) {
$module = substr($file, 0, $pos);
$file = substr($file, $pos + 1);
}
list($path, $file) = Modules::find($file, $module, 'widgets/');
if ($path === FALSE) {
$path = APPPATH.'widgets/';
}
Modules::load_file($file, $path);
$file = ucfirst($file);
$widget = new $file();
$widget->module_path = $path;
return call_user_func_array(array($widget, 'run'), array_slice($args, 1));
}
function render($view, $data = array()) {
extract($data);
include $this->module_path.'views/'.$view.EXT;
}
function load($object) {
$this->$object = load_class(ucfirst($object));
}
function __get($var) {
global $CI;
return $CI->$var;
}
}
示例
Example
// application/widgets/Hello_world.php
class Hello_world extends Widget
{
function run() {
$this->render('hello_world');
}
}
在视图中调用静态run小部件类:
In your view call the static "run" method on the widget class:
widget::run('hello_world');
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