Subversion-Projekte lars-tiefland.prado

<?php

class EditPost extends TPage
{
        /**
         * Initializes the inputs with existing post data.
         * This method is invoked by the framework when the page is being initialized.
         * @param mixed event parameter
         */
        public function onInit($param)
        {
                parent::onInit($param);
                // Retrieves the existing user data. This is equivalent to:
                // $postRecord=$this->getPost();
                $postRecord=$this->Post;
                // Authorization check: only the author or the administrator can edit the post
                if($postRecord->author_id!==$this->User->Name && !$this->User->IsAdmin)
                        throw new THttpException(500,'You are not allowed to edit this post.');

                if(!$this->IsPostBack)  // if the page is initially requested
                {
                        // Populates the input controls with the existing post data
                        $this->TitleEdit->Text=$postRecord->title;
                        $this->ContentEdit->Text=$postRecord->content;
                }
        }

        /**
         * Saves the post if all inputs are valid.
         * This method responds to the OnClick event of the "Save" button.
         * @param mixed event sender
         * @param mixed event parameter
         */
        public function saveButtonClicked($sender,$param)
        {
                if($this->IsValid)  // when all validations succeed
                {
                        // Retrieves the existing user data. This is equivalent to:
                        // $postRecord=$this->getPost();
                        $postRecord=$this->Post;

                        // Fetches the input data
                        $postRecord->title=$this->TitleEdit->SafeText;
                        $postRecord->content=$this->ContentEdit->SafeText;

                        // saves to the database via Active Record mechanism
                        $postRecord->save();

                        // redirects the browser to the ReadPost page
                        $url=$this->Service->constructUrl('posts.ReadPost',array('id'=>$postRecord->post_id));
                        $this->Response->redirect($url);
                }
        }

        /**
         * Returns the post data to be editted.
         * @return PostRecord the post data to be editted.
         * @throws THttpException if the post data is not found.
         */
        protected function getPost()
        {
                // the ID of the post to be editted is passed via GET parameter 'id'
                $postID=(int)$this->Request['id'];
                // use Active Record to look for the specified post ID
                $postRecord=PostRecord::finder()->findByPk($postID);
                if($postRecord===null)
                        throw new THttpException(500,'Post is not found.');
                return $postRecord;
        }
}

?>