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<?php
class ReadPost extends TPage
{
private $_post;
/**
* Fetches the post data.
* This method is invoked by the framework when initializing the page
* @param mixed event parameter
*/
public function onInit($param)
{
parent::onInit($param);
// post id is passed via the 'id' GET parameter
$postID=(int)$this->Request['id'];
// retrieves PostRecord with author information filled in
$this->_post=PostRecord::finder()->withAuthor()->findByPk($postID);
if($this->_post===null) // if post id is invalid
throw new THttpException(500,'Unable to find the specified post.');
// set the page title as the post title
$this->Title=$this->_post->title;
}
/**
* @return PostRecord the PostRecord currently being viewed
*/
public function getPost()
{
return $this->_post;
}
/**
* Deletes the post currently being viewed
* This method is invoked when the user clicks on the "Delete" button
*/
public function deletePost($sender,$param)
{
// only the author or the administrator can delete a post
if(!$this->canEdit())
throw new THttpException('You are not allowed to perform this action.');
// delete it from DB
$this->_post->delete();
// redirect the browser to the homepage
$this->Response->redirect($this->Service->DefaultPageUrl);
}
/**
* @return boolean whether the current user can edit/delete the post being viewed
*/
public function canEdit()
{
// only the author or the administrator can edit/delete a post
return $this->User->Name===$this->Post->author_id || $this->User->IsAdmin;
}
}
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