初识ThinkPHP的Widget，现把模块开发的流程发布如下，也方便以后自己查阅：
一、新建数据库表self_modules,sql代码如下
CREATE TABLE `self_modules` ( `id` int(11) unsigned NOT NULL AUTO_INCREMENT, `title` text NOT NULL, `content` text NOT NULL, `order` int(11) NOT NULL DEFAULT '0', `position` varchar(50) NOT NULL, `published` tinyint(1) NOT NULL DEFAULT '1', `module` varchar(50) NOT NULL, `access` tinyint(3) NOT NULL DEFAULT '0', `showtitle` tinyint(3) NOT NULL DEFAULT '1', `params` text NOT NULL, PRIMARY KEY (`id`) ) ENGINE=MyISAM AUTO_INCREMENT=7 DEFAULT CHARSET=utf8; INSERT INTO `self_modules` VALUES ('1', '主菜单', '', '0', 'left', '1', 'Menu', '0', '1', 'id=1 style=17joys'); INSERT INTO `self_modules` VALUES ('2', '子菜单', '', '0', 'left', '1', 'Menu', '0', '1', 'id=1 style=menu'); INSERT INTO `self_modules` VALUES ('3', '最新文章模块', '', '0''left','1','LatestNews','0','1','sid=2 cid=3 style=latestnews');
2、前台项目home/Lib/Action目录下建立ModulesAction.class.php,代码如下
class ModulesAction extends CommonAction{ function index(){ $mod = new Model('Modules'); $list = $mod->where("position='left'")->select(); $this->assign('modlist',$list); $this->display(); } }
3、/home/Tpl/default/Modules目录下建立index.html模板文件，代码如下(注意模块的调用方法)
<!doctype html> <html> <head> <meta charset="utf-8"> <title>模块</title> </head> <body> <volist name="modlist" id="row"> <h3>{$row['title']}</h3> {:W($row['module'],array('params'=>$row['params'],))} </volist> </body> </html>
4、/home/Lib目录下建立Widget目录，在该目录下建立菜单模板文件MenuWidget.class.php，代码如下
class MenuWidget extends Widget{ function render($data){ //return '<font color="'.$data['color'].'">aaa</font>'; $params = $data['params']; $p = explode(" ",$params); $pv = array(); foreach($p as $v){ $tmp = explode("=",$v); $pv[$tmp[0]] = $tmp[1]; } //dump($pv); $menuitem = new Model('MenuItem'); $list = $menuitem->field("id,name,link,concat(path,'-',id) as bpath")->order('bpath,id')->where('menuid='.$pv['id'])->select(); foreach($list as $key=>$val){ $list[$key]['signnum'] = count(explode('-',$val['bpath']))-1; $list[$key]['marginnum'] = (count(explode('-',$val['bpath']))-1)*10; } $data['milist'] = $list; $content = $this->renderFile($pv['style'],$data); return $content; } }
5、/home/Lib/Widget/目录下建立菜单模块的模板目录Menu，并在该目录下建立菜单模块模板menu.html和17joys.html（这里建两个主要是多套模板可以选择）代码分别如下：
menu.html
<ul> <volist name="milist" id="row"> <li style="margin-left:{$row['marginnum']}px"><a href="{$row['link']}">{$row['name']}</a></li> </volist> </ul>
17joys.html
<ol> <volist name="milist" id="row"> <li style="margin-left:{$row['marginnum']}px"><a href="{$row['link']}">{$row['name']}</a></li> </volist> </ol>
至此模块开发完成，下面再写一个最新文章模块可以用来练习使用：
1、/home/Lib/Widget/目录下建立最新文章模块的Widget文件LatestNewsWidget.class.php，代码如下
class LatestNewsWidget extends Widget{ function render($data){ $params = $data['params']; $p = explode(" ",$params); $pv = array(); foreach($p as $v){ $tmp = explode("=",$v); $pv[$tmp[0]] = $tmp[1]; } $article = new Model('Article'); $list = $article->where('sectionid='.$pv['sid'].' and catid='.$pv['cid'])->select(); //dump($list); $data['alist'] = $list; $content = $this->renderFile('latestnews',$data); return $content; } }
2、/home/Lib/Widget/目录下建立最新文章的模板目录LatestNews，并在该目录下建立最新文章模块的模板文件latestnews.html，代码如下：
<ul> <volist name="alist" id="row"> <li>{:U('Article/view/id/'.$row['id'])}<a href="__APP__/Articl/view/id/{$row['id']}">{$row['title']}</a></li> </volist> </ul>
至此最新文章模块完成，其实感觉也挺简单的，就两部，关键点就是处理好控制器模板穿过来的参数：{:W($row['module'],array('params'=>$row['params'],))}
文章的静态化要在home项目的配置文件配置静态化设置：/home/Conf/config.php
'URL_HTML_SUFFIX'=>'.html',