Subversion-Projekte lars-tiefland.prado

<?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;
        }
}

?>