riak save with redis integration

  
//save the object with no key in riak. riak will autogen a key
riak.save('posts','',{content: content, tags: vettedPostTags })(
	
        //success callback
	function (d,m){
                //return an int of lastmodified in meta
		var paresedDate = Date.parse(m.headers.date);
		
                //push riak key to a mostrecents list in redis
		redis.lpush('mostrecent',m.key);
		
                //for each tag
		for (var i = 0, len = vettedPostTags.length ; i < len ; i++){
                        vpt = vettedPostTags[i].replace(/[^A-Za-z0-9]/g,'_');
			var redis_post_tag_key = 'tag_' + vpt;
			var redis_post_ztag_key = 'zset_tag_' + vpt;
			
                        //push each tag to another list
			redis.lpush(redis_post_tag_key,m.key);	
			
			//sys.puts(m.headers.date);
			
                        //add tag into a sorted set with the int(date) as the score
			redis.zadd(redis_post_ztag_key,paresedDate,m.key);		
		}
		
		//return the new key just saved
		res.simpleJSON(200, { key: m.key });
		
	},
        //error callback
	function (d,m){
		
		res.simpleJSON(400, { error: 'Could not post.' });
		
	}
	
);