第十三课 插件开发–增加文章评论
最后更新于:2022-04-01 20:42:23
>[danger]上节课我们讲了如何开发插件,这一节课我们用一个实例来讲解如何开发一个评论插件
有些做过其他系统的插件开发的同学,再来学iWebShop的插件开发,很容易就上手,有些也可能发现iWebShop插件开发时,对前端页面的控制目前支持得还不是很灵活。因此,我做这个评论插件,我就采用以下方法开发:
后端维护的功能,用插件实现,前端评论,使用我们之前学的模板开发的方式来做
## 一、建立插件
在插件目录下增加“comment”目录,创建如下三个文件:
![](http://it.sunzoon.com/wp-content/uploads/2016/08/20160819193459.png)
comment.php中加入以下代码:
~~~
class comment extends pluginBase{
//【必填】插件中文名称
public static function name()
{
return "三众科技评论插件";
}
//【必填】插件的功能简介
public static function description()
{
return "文章评论插件";
}
//安装插件代码
public static function install()
{
$commentDB = new IModel('article_comment');//表名article_comment
//判断表是否存在
if($commentDB->exists())
{
return true;
}
$data = array(
"comment" => self::name(),
"column" => array(
"id" => array("type" => "int(11) unsigned",'auto_increment' => 1),
"content" => array("type" => "text","comment" => "评论内容"),
"create_time" => array("type" => "int(11) unsigned","default" => "0","comment" => "评论时间"),
"recontents" => array("type" => "text","comment" => "回复内容"),
"recomment_time" => array("type" => "int(11) unsigned","default" => "0","comment" => "回复时间"),
"aid" => array("type" => "int(11) unsigned","default" => "0","comment" => "文章id"),
"uid" => array("type" => "int(11) unsigned","default" => "0","comment" => "用户id")
),
"index" => array("primary" => "id","key" => "aid,uid"),
);
$commentDB->setData($data);
//开始创建表
return $commentDB->createTable();
}
//卸载插件代码
public static function uninstall()
{
$commentDB = new IModel('article_comment');
//删除表
return $commentDB->dropTable();
}
//插件参数配置
public static function configName()
{
//在本拿了中无参数配置
}
}
~~~
之后在后台中就可以安装插件了
![](http://it.sunzoon.com/wp-content/uploads/2016/08/20160819114735-1024x325.png)
以上为每个插件必须的,如不需要操作数据库的,可以不用写数据库代码。
## 二、管理后台功能维护
功能注册,comment.php中加入以下代码:
~~~
public function reg()
{
//后台插件管理中增加该插件链接
plugin::reg("onSystemMenuCreate",function(){
$link = "/plugins/system_comment_list";
Menu::$menu["插件"]["插件管理"][$link] = $this->name();
});
//后台评论列表的链接
plugin::reg("onBeforeCreateAction@plugins@system_comment_list",function(){
self::controller()->system_comment_list = function(){$this->comment_list();};
});
//后台评论详情的链接
plugin::reg("onBeforeCreateAction@plugins@system_comment_edit",function(){
self::controller()->system_comment_edit = function(){$this->comment_edit();};
});
//后台评论回复的链接
plugin::reg("onBeforeCreateAction@plugins@system_comment_update",function(){
self::controller()->system_comment_update = function(){$this->comment_update();};
});
//后台评论删除的链接
plugin::reg("onBeforeCreateAction@plugins@system_comment_del",function(){
self::controller()->system_comment_del = function(){$this->comment_del();};
});
}
~~~
功能实现,comment.php中加入以下代码:
~~~
public function comment_list()
{
$this->redirect('system_comment_list');
}
public function comment_edit()
{
$id = IFilter::act(IReq::get('id'));
$commentDB = new IQuery('article_comment as c');
$commentDB->join=" left join article as b on c.aid = b.id left join user as a on c.uid = a.id ";
$commentDB->where=" c.id=$id ";
$commentDB->fields ="c.id,FROM_UNIXTIME(c.create_time) as create_time,a.username,b.title,c.recomment_time,c.recontents,c.content";
$items = $commentDB->find();
$this->redirect('system_comment_edit',array('comment' => current($items)));
}
//回复评论
public function comment_update()
{
$id = IFilter::act(IReq::get('id'));
$recontents = IFilter::act(IReq::get('recontents'));
$data = array();
$data['recontents']=$recontents;
$data['recomment_time']=time();
//保存数据库
$commentDB = new IModel('article_comment');
$commentDB->setData($data);
$commentDB->update('id = '.$id);
$this->redirect('system_comment_list');
}
//回复删除
public function comment_del()
{
$commentDB = new IModel('article_comment');
$id = IFilter::act(IReq::get('id'));
$commentDB->del('id = '.$id);
$this->redirect('system_comment_list');
}
~~~
后台管理页面,评论列表:system_comment_list.html
~~~
~~~
评论列表页:
![](http://it.sunzoon.com/wp-content/uploads/2016/08/20160819201409.png)
评论详情页面:
![](http://it.sunzoon.com/wp-content/uploads/2016/08/20160819201620.png)
## 三、前台功能
找到site\article,加入以下代码,用于显示评论
~~~
~~~
![](http://it.sunzoon.com/wp-content/uploads/2016/08/20160819202116.png)
打开site.php,加入以下代码
~~~
public function article_comment_add()
{
if(!isset($this->user['user_id']) || !$this->user['user_id'])
{
IError::show(403,"未登录用户不能评论");
}
if(!IReq::get('aid'))
{
IError::show(403,"传递的参数不完整");
}
if(trim(IReq::get('content'))=="")
{
IError::show(403,"评论必须输入");
}
$aid = IFilter::act(IReq::get('aid'),'int');
$data = array(
'content' => IFilter::act(IReq::get("content")),
'create_time' => time(),
'aid'=>$aid,
'uid'=>$this->user['user_id'],
);
$tb_comment = new IModel("article_comment");
$tb_comment->setData($data);
$re = $tb_comment->add();
if($re)
{
$this->redirect("/site/article_detail/id/".$aid);
}
else
{
IError::show(403,"评论失败");
}
}
~~~
以下代码用于实现评论提交功能。
### 后记
以上只是举了一个例子说明如何做一个插件,还有前台的视图和控制器的代码实现,但就目前而言,iwebShop的插件还是比较适合做那些没界面的功能,或是在线留言等这些js控件的前端功能,一旦前台界面有交互,还是用非插件的模式实现比较方便点,每个工具都有优缺点,能实现功能的就是好工具
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';
~~~
后台管理页面,评论详情:system_comment_edit.html
~~~
评论内容:{$item['create_time']}
{$item['content']}
{if:$item['recomment_time']>0}回复: {$item['reply_time']}
{$item['recontents']}
{/if}