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def search
  Course.paged_search nil, nil, nil, params[:page]
  # ... add breadcrumb and course_categories
...

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class ReportReader
  def initialize(file_name)
    @lines = File.open(file_name).read.split("\n")
...

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biggest_square = [1,4,3,5].inject(0){ |memo, i| [memo, square(i)].max }

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class String
  def uncapitalize
    self.sub(/(^.)/) {|m| m.downcase }
...

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class BandMember
  attr_accessor :first, :last, :band
  def initialize(first, last, band)
...

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biggest_square = 0
[1,4,3,5].each do |base|
  (temp = square(base)) > biggest_square && biggest_square = temp
...

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def square(number)
  return number**2
end
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for feedback in @feedbacks
  1.upto(20) do |i|
    # unless (answer = feedback.question(i)).nil? # lets you avoid a second call
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# For the initial view, there's a better way to keep track of 'count'
# each_with_index is in Enumerable
<ul id="lastfm_update_list">
...

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class Report < ActiveRecord::Base
  belongs_to :reportable, :polymorphic => true
  
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class User < ActiveRecord::Base
  has_many :orders
  has_many :products, :through => :orders
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module DashboardHelper
  def activity_message_for(object)
    render :partial => "#{object.class.name.downcase.pluralize}/activity"
...

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module DashboardHelper
  def activity_message_for(object)
    render :partial => "#{object.class.name.downcase}/_#{object.class.name.downcase}_activity"
...