Pastable version of How to make time_ago_in_words cachable ?

<pre class='prettyprint' language='ruby'># In one of your helper module, dump:
def cachable_time_ago_in_words(from)
  js_call = javascript_tag &quot;document.write(DateHelper.timeAgoInWords(#{(from.to_i * 1000).to_json}) + ' ago');&quot;
  &quot;&lt;noscript&gt;on #{from.to_formatted_s(:long)}&lt;/noscript&gt;#{js_call}&quot;
end

# In your application.js
var DateHelper = {
  timeAgoInWords: function(from) {
   return this.distanceOfTimeInWords(new Date().getTime(), from);
  },

distanceOfTimeInWords: function(to, from) {
    seconds_ago = ((to  - from) / 1000);
    minutes_ago = Math.floor(seconds_ago / 60);

if(minutes_ago == 0) { return &quot;less than a minute&quot;; }
    if(minutes_ago == 1) { return &quot;a minute&quot;; }
    if(minutes_ago &lt; 45) { return minutes_ago + &quot; minutes&quot;; }
    if(minutes_ago &lt; 90) { return &quot; about 1 hour&quot;; }
    hours_ago  = Math.round(minutes_ago / 60);
    if(minutes_ago &lt; 1440) { return &quot;about &quot; + hours_ago + &quot; hours&quot;; }
    if(minutes_ago &lt; 2880) { return &quot;1 day&quot;; }
    days_ago  = Math.round(minutes_ago / 1440);
    if(minutes_ago &lt; 43200) { return days_ago + &quot; days&quot;; }
    if(minutes_ago &lt; 86400) { return &quot;about 1 month&quot;; }
    months_ago  = Math.round(minutes_ago / 43200);
    if(minutes_ago &lt; 525960) { return months_ago + &quot; months&quot;; }
    if(minutes_ago &lt; 1051920) { return &quot;about 1 year&quot;; }
    years_ago  = Math.round(minutes_ago / 525960);
    return &quot;over &quot; + years_ago + &quot; years&quot;;
  }
}

# Then in your views use:
&lt;%= cachable_time_ago_in_words Time.now %&gt;</pre>
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Pastable version of How to make time_ago_in_words cachable ?