PHP script and CouchDB design document elements for an SMS management system

index.php

<?php

// Include required classes.
require 'classes/sag/Sag.php';
require 'classes/smsified/inbound.class.php';
require 'classes/smsified/smsified.class.php';

// Extend InboundMessage class.
class SMSMessage extends InboundMessage {
	public function __construct($json) {
		parent::__construct($json);
	}
	
	// fucntion to create JSON document for storing in CouchDB.
	public function __toString() {
		$message = array();
		$message["timestamp"] = $this->timeStamp;
		$message["destinationAddress"] = $this->destinationAddress;
		$message["message"] = $this->message;
		$message["senderAddress"] = $this->senderAddress;
		return json_encode($message);
	}
}

// Insert an inbound text message in CouchDB.
try {
	// Grab the raw JSON sent from SMSified.
	$json = file_get_contents("php://input");
	$SMS = new SMSMessage($json);
	
	// Create a new Sag instance.
	$sag = new Sag('127.0.0.1', 5984);
	$sag->setDatabase("smsrecords");
	
	// Save the SMS message in CouchDB.
	$id = $SMS->getMessageId();
	$sag->put($id, sprintf($SMS));	
}

catch (SagCouchException $ex) {
	die("*** ".$ex->getMessage()." ***");
}

list.js

{
   "rss": "function(head, req)  { var row; var date = new Date(); start({\"headers\":{\"Content-type\": \"application/rss+xml\"}}); var out = '<?xml version=\"1.0\"?><rss version=\"2.0\"><channel>'; out += '<title>Inbound SMS Messages</title>'; out += '<description>A List of all inbound SMS messages</description>'; out += '<lastBuildDate>' + date.toGMTString() + '</lastBuildDate>'; out += '<pubDate>' + date.toGMTString() + '</pubDate>'; while (row = getRow()) {  out +='<item><title>Inbound Text Message from ' + row.value.title + '</title><description>' + row.value.description + '</description><guid>' + row.value.guid + '</guid><link>http://textmanager:5984/' + row.id + '</link><pubDate>' + row.value.pubDate + '</pubDate></item>'; } out += '</channel></rss>'; send(out); }"
}

map.js

{
   "details": {
       "map": "function(doc) {\n  emit(doc._id, {title: doc.senderAddress, description: doc.message, guid: doc._id, pubDate: doc.timestamp });\n}"
   }
}

rewrite.js

[
   {
       "from": "/smsfeed",
       "to": "_list/rss/details"
   },
   {
       "from": "/:id",
       "to": "_show/details/:id"
   }
]

show.js

{
   "details": "function(doc, req) { return '<h2>Inbound Text Message from ' + doc.senderAddress + '</h2>' + '<p> Message: ' + doc.message + '<br/>Sent: ' + doc.timestamp + '</p>'}"
}