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# 2.3

named_scope :last_active_since, lambda { |la| la = 10.minutes.ago if la.nil?; {:conditions => ['last_active_at >= ?', la]}}

# 3 scopes

named_scope :last_active_since, lambda { |la| la = 10.minutes.ago if la.nil?; where('last_active_at >= ?', la) }

# 3 method

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Rails Rumble 'Alumni'

2007:

* http://tastyplanner.com
* ???

2008:

* http://prioritizd.com

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module ActiveRecord
  module Batches # :nodoc:
    def self.included(base)
      base.extend(ClassMethods)
    end

    # When processing large numbers of records, it's often a good idea to do
    # so in batches to prevent memory ballooning.
    module ClassMethods
      # Yields each record that was found by the find +options+. The find is

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  define_index do
    indexes :name,                  :sortable => true
    indexes entry(:subdomain),      :as => :entry_subdomain,   :sortable => true
    indexes entry(:description),    :as => :entry_description, :sortable => true
    indexes entry(:name),           :as => :entry_name,        :sortable => true
    indexes entry(:resources_used), :as => :entry_resources,   :sortable => true
    
    has :state
    where "state IN ('approved', 'qualified', 'verified')"
  end

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#!/usr/bin/env ruby
require 'rubygems'
require 'fastercsv'
require 'json'

def jsonify(set)
  Dir.chdir set
  images = []
  folders = Dir["*/"]
  folders.each do |folder|

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/*  GitHub Commits, version 0.0.1
 *  (c) 2009 Jeff Rafter
 *
 *  Based on GitHub Badge by Dr Nic Williams (but with the good code removed)
 *
 *  You need: jquery.js, md5.js
 *
 *  See http://pajhome.org.uk/crypt/md5 for more info.
 *
 *--------------------------------------------------------------------------*/

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# Require RubyGems by default.
require 'rubygems'
 
# Require UtilityBelt for lots of functionality
# http://utilitybelt.rubyforge.org/
require 'utility_belt'
UtilityBelt::Equipper.equip(:defaults)
UtilityBelt::Equipper.equip(:with, :string_to_proc, :pipe, :not,
                            :language_greps, :is_an, :clipboard,
                            :interactive_editor)

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    def rating(*args)
      options = args.extract_options!
      category = options.delete(:category)
      as_float = options.delete(:as_float)
      certified = options.delete(:certified)
      user_or_ip = options.delete(:user) || options.delete(:ip)

      if user_or_ip && Rating.instance_methods.include?('user')
        options[:conditions] = ["user_id = ?", user_or_ip.id]
      elsif user_or_ip

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>> e = Entry.find(:first, :conditions => {:name => 'MyConf'})
=> #<Entry id: 137, name: "MyConf", ....
>> e.ratings.average(:value)
=> 2.469
>> e.ratings.certified.average(:value)
=> 2.6507
>> e.rating(:as_float => true)
=> 2.6507
>> e.rating(:certified => true, :as_float => true)
=> 2.469

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>> users = User.all
<< snip >>
>> def trim_percentage(users, cutoff)
>>   above, below, novote = 0, 0, 0
>>   users.each do |user|
?>     avg = user.ratings.average(:value).to_f
>>     if avg < 1
>>       novote += 1
>>     elsif avg < cutoff
>>       below += 1