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class CommentsController < ApplicationController
  def index
    	@commentable = Video.find(params[:video_id])
    	@comments = @commentable.comments
  	end

  	def new
  		@commentable = Video.find(params[:video_id])
  @comment = @commentable.comments.new
	end

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#course_helper
 def coursenames(courseid)
  @coursedept = Department.all(:include => :courses, :conditions => ["courses.id = ?",courseid])
  @coursedept.map(&:name)
 end

 
  <% @course.each do |course| %> 
   <tr>
     <td><%= course.code %></td>

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<%= link_to path_helper_goes_here, :class => "decideBtn" do %>
  <i class="icon-plus icon-white"></i>
  Add
<% end %>   

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  activerecord:
    errors:
      models:
        user:
          errors: &errors
            blank: campo obrigatório
          attributes:
            name: *errors
            email: *errors

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class Friendship < ActiveRecord::Base
  attr_accessible :friend_id, :user_id, :status
  belongs_to :user
  belongs_to :friend, :class_name => 'User', :counter_cache => :friends_count
  
  def self.request(user, friend)
    unless user == friend or Friendship.where(:user_id => user, :friend_id => friend).exists?
      transaction do
        create({:user => user, :friend => friend, :status => 'pending'}, :without_protection => true)
        create({:user => friend, :friend => user, :status => 'requested'}, :without_protection => true)

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class Page < ActiveRecord::Base
  belongs_to :book
  attr_accessible :link, :summary, :title
  before_save :set_title
  scope :title, where("title is not null")
  
  def set_title
    self.title ||= URI.parse(link).host
  end
end

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class BackgroundJobChecker
	def self.check
	    Resque::Plugins::Status::Hash.statuses.each do |job|
	      return !job.working?
	    end
	end
end

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<% @hospitals.each do |hospital| %>
  <% hospital.hospital_bookings.each do |booking| %>

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describe 'on signup page' do

  before { visit '/signup' }

  context "with invalid information" do
    # tests here work great
  end

  context 'with valid information' do

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class Discount < ActiveRecord::Base
  def unused
    self.orders.
    where(:state => ['shipped', 'paid', 'completed', 'processing']).
    where(:user_id => user.id).
    count
  end
end