added category rss. added tid to be passed back in getTopicsByTids.

src/categories.js

@@ -166,6 +166,7 @@ var	RDB = require('./redis.js'),
 					for (var i=0, ii=tids.length; i<ii; i++) {
 						if (!deleted[i] || (deleted[i] && privileges.view_deleted) || uid[i] === current_user) {
 							retrieved_topics.push({
+								'tid' : tids[i],
 								'title' : title[i],
 								'uid' : uid[i],
 								'username': usernames[i],

src/feed.js

@@ -5,10 +5,9 @@
 		topics = require('./topics.js'),
 		fs = require('fs');
 
-	function saveFeed(feed, xml, tid) {
+	function saveFeed(location, feed, xml) {
 		feed.endEntry();
-
-		fs.writeFile('feeds/topics/' + tid + '.rss', xml.toString(), function (err) {
+		fs.writeFile(location, xml.toString(), function (err) {
 			if (err) throw err;
 		});
 	}
@@ -37,7 +36,8 @@
 	}
 
 	Feed.updateTopic = function(tid, cid) {
-		var cache_time_in_seconds = 60,
+		return;
+		var cache_time_in_seconds = 60, //todo. don't rewrite xml every time something is posted.
 			XMLWriter = require('xml-writer');
 			xml = new XMLWriter(true);
 
@@ -71,12 +71,31 @@
 				feed = createEntry(feed, urn, title, postsData.content[i], url, userData[postsData.uid[i]].username);
 			}
 
-			saveFeed(feed, xml, tid);
+			saveFeed('feeds/topics/' + tid + '.rss', feed, xml);
 		});
 
 	};
 
-	Feed.updateCategory = function(params) {
+	Feed.updateCategory = function(cid) {
+		var XMLWriter = require('xml-writer');
+			xml = new XMLWriter(true);
+
+		categories.getCategoryById(cid, 0, function(categoryData) {
+			var url = '/category/' + categoryData.category_id + '/' + categoryData.category_name;
+
+			var urn = 'urn:' + cid;
+			var feed = createFeed(xml, urn, categoryData.category_name, url, 'NodeBB'); // not exactly sure if author for a category should be site_title?
+			var title;
+			var topics = categoryData.topics;
+
+			for (var i = 0, ii = topics.length; i < ii; i++) {
+				urn = 'urn:' + cid + ':' + topics[i].tid;
+				title = topics[i].title + '. Posted on ' + (new Date(parseInt(topics[i].timestamp, 10)).toUTCString());
+				feed = createEntry(feed, urn, title, topics[i].teaser_text, url, topics[i].username);
+			}
+
+			saveFeed('feeds/categories/' + cid + '.rss', feed, xml);
+		});
 
 	};
 }(exports));

src/topics.js

@@ -7,7 +7,8 @@ var	RDB = require('./redis.js')
 	posts = require('./posts.js'),
 	marked = require('marked'),
 	threadTools = require('./threadTools.js'),
-	async = require('async');
+	async = require('async'),
+	feed = require('./feed.js');
 
 marked.setOptions({
 	breaks: true
@@ -370,6 +371,8 @@ marked.setOptions({
 				});
 
 				RDB.incr('cid:' + category_id + ':topiccount');
+
+				feed.updateCategory(category_id);
 			});
 		});
 	};

src/webserver.js

@@ -118,7 +118,19 @@ var express = require('express'),
 	});
 
 	app.get('/category/:category_id/:slug?', function(req, res) {
-		var category_url = req.params.category_id + (req.params.slug ? '/' + req.params.slug : '');
+		var cid = req.params.category_id;
+		if (cid.match('.rss')) {
+			fs.readFile('feeds/categories/' + cid, function (err, data) {
+				if (err) {
+					res.send("Unable to locate an rss feed at this location.");
+					return;
+				}
+				res.send(data);
+			});
+			return;
+		}
+
+		var category_url = cid + (req.params.slug ? '/' + req.params.slug : '');
 		res.send(build_header() + '<script>templates.ready(function(){ajaxify.go("category/' + category_url + '");});</script>' + templates['footer']);
 	});