5aQKyaJV

1/*
2 * JavaScript Pretty Date
3 * Copyright (c) 2008 John Resig (jquery.com)
4 * Licensed under the MIT license.
5 */
6
7// Takes an ISO time and returns a string representing how
8// long ago the date represents.
9function prettyDate(time) {
10  var date = time,
11    diff = (((new Date()).getTime() - date.getTime()) / 1000),
12    day_diff = Math.floor(diff / 86400);
13      
14  if ( isNaN(day_diff) || day_diff < 0 || day_diff >= 31 )
15    return;
16      
17  return day_diff == 0 && (
18      diff < 60 && "just now" ||
19      diff < 120 && "1 minute ago" ||
20      diff < 3600 && Math.floor( diff / 60 ) + " minutes ago" ||
21      diff < 7200 && "1 hour ago" ||
22      diff < 86400 && Math.floor( diff / 3600 ) + " hours ago") ||
23    day_diff == 1 && "Yesterday" ||
24    day_diff < 7 && day_diff + " days ago" ||
25    day_diff < 31 && Math.ceil( day_diff / 7 ) + " weeks ago";
26} 
27
28var byDay = function(doc) {
29  var date = Date.UTC(doc.created_at);
30  return { date: date};   
31}
32
33var initialDoc = {
34  count: 0,
35  date: '',
36  post_ids: new Array() 
37}
38
39var reduce = function(doc, prev) {    
40  var prettyDate = function(time) {
41    var date = time,
42      diff = (((new Date()).getTime() - date.getTime()) / 1000),
43      day_diff = Math.floor(diff / 86400);
44
45    if ( isNaN(day_diff) || day_diff < 0 || day_diff >= 31 )
46      return;
47
48    return day_diff == 0 && (
49        diff < 60 && "just now" ||
50        diff < 120 && "1 minute ago" ||
51        diff < 3600 && Math.floor( diff / 60 ) + " minutes ago" ||
52        diff < 7200 && "1 hour ago" ||
53        diff < 86400 && Math.floor( diff / 3600 ) + " hours ago") ||
54      day_diff == 1 && "Yesterday" ||
55      day_diff < 7 && day_diff + " days ago" ||
56      day_diff < 31 && Math.ceil( day_diff / 7 ) + " weeks ago";
57  };         
58  prev.count          += 1;     
59  prev.date            = prettyDate(doc.created_at);        
60  prev.post_ids.push(doc._id);         
61}
62
63db.events.group({
64  keyf:     byDay,
65  initial:  initialDoc,
66  reduce:  reduce,
67  cond:    {created_at: {"$gte": new Date(2010, 0)}},
68});