From dd028bec3822d1d9c28c35d599d687e038c7705f Mon Sep 17 00:00:00 2001
From: wei <>
Date: Thu, 4 Jan 2007 11:23:26 +0000
Subject: Add chat demo and tutorial.

---
 demos/chat/protected/App_Code/ChatBufferRecord.php | 64 ++++++++++++++++++++++
 1 file changed, 64 insertions(+)
 create mode 100644 demos/chat/protected/App_Code/ChatBufferRecord.php

(limited to 'demos/chat/protected/App_Code/ChatBufferRecord.php')

diff --git a/demos/chat/protected/App_Code/ChatBufferRecord.php b/demos/chat/protected/App_Code/ChatBufferRecord.php
new file mode 100644
index 00000000..cf3c651f
--- /dev/null
+++ b/demos/chat/protected/App_Code/ChatBufferRecord.php
@@ -0,0 +1,64 @@
+<?php
+
+class ChatBufferRecord extends TActiveRecord
+{
+	public $id;
+	public $for_user;
+	public $from_user;
+	public $message;
+	private $_created_on;
+
+	public static $_tablename='chat_buffer';
+
+	public function getCreated_On()
+	{
+		if($this->_created_on === null)
+			$this->_created_on = time();
+		return $this->_created_on;
+	}
+
+	public function setCreated_On($value)
+	{
+		$this->_created_on = $value;
+	}
+
+	public static function finder()
+	{
+		return parent::getRecordFinder('ChatBufferRecord');
+	}
+
+	public function saveMessage()
+	{
+		foreach(ChatUserRecord::finder()->findAll() as $user)
+		{
+			$message = new self;
+			$message->for_user = $user->username;
+			$message->from_user = $this->from_user;
+			$message->message = $this->message;
+			$message->save();
+			if($user->username == $this->from_user)
+			{
+				$user->last_activity = time(); //update the last activity;
+				$user->save();
+			}
+		}
+	}
+
+	public function getUserMessages($user)
+	{
+		$content = '';
+		foreach($this->findAll('for_user = ?', $user) as $message)
+			$content .= $this->formatMessage($message);
+		$this->deleteAll('for_user = ? OR created_on < ?', $user, time() - 300); //5 min inactivity
+		return $content;
+	}
+
+	protected function formatMessage($message)
+	{
+		$user = htmlspecialchars($message->from_user);
+		$content = htmlspecialchars($message->message);
+		return "<div class=\"message\"><strong>{$user}:</strong> <span>{$content}</span></div>";
+	}
+}
+
+?>
\ No newline at end of file
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