From f92ca63a225d43e7ecca4ebe528c2a1e206a40f1 Mon Sep 17 00:00:00 2001
From: xue <>
Date: Tue, 26 Jun 2007 15:59:16 +0000
Subject: Completed day 4 for blog tutorial.

---
 .../day4/blog/protected/pages/posts/EditPost.php   | 72 ++++++++++++++++++++++
 1 file changed, 72 insertions(+)
 create mode 100644 demos/blog-tutorial/samples/day4/blog/protected/pages/posts/EditPost.php

(limited to 'demos/blog-tutorial/samples/day4/blog/protected/pages/posts/EditPost.php')

diff --git a/demos/blog-tutorial/samples/day4/blog/protected/pages/posts/EditPost.php b/demos/blog-tutorial/samples/day4/blog/protected/pages/posts/EditPost.php
new file mode 100644
index 00000000..e137b85e
--- /dev/null
+++ b/demos/blog-tutorial/samples/day4/blog/protected/pages/posts/EditPost.php
@@ -0,0 +1,72 @@
+<?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;
+	}
+}
+
+?>
\ No newline at end of file
-- 
cgit v1.2.3