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def per_page_select(collection, name=nil, value=nil, options={})
  unless collection.empty?
    per_page = collection.first.class.per_page
    name     = name || 'per_page'
    value    = value || params[:per_page] || per_page.to_s
    before   = options[:before_default] || ["#{per_page/2}"]
    after    = options[:after_default] || ["#{per_page*2}"]
    choices  = options_for_select(before + ["#{per_page}"] + after, value)
    select_tag name, choices, options
  end

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def per_page_links(collection, options={})
  unless collection.empty?
    separator = options[:seperator] || ' '
    css_class = options[:class] || 'per_page_links'
    param     = options[:param] || :per_page
    per_page  = collection.first.class.per_page
    options   = [per_page/2, per_page, per_page*2]
    value     = params[param] || per_page.to_s
    link      = lambda {|p| url_for(params.merge({param => p}))}
    item      = lambda {|p, current_value| current_value == p.to_s ? content_tag(:span, p, :class => 'current') : link_to(p, link.call(p)) }

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## In application.js
$(document).ready(function() {
  
  $('table.search_results tbody tr').click(function() {
    alert($(this).children('a:first-child').attr('href'));
  });
  
});

## In view.html

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Event.addBehavior({
  
  '#my_selector': function() {
    // code that only gets executed when something with the id 'my_selector' exists
  }
  
});

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jQuery.fn.exists = function(fn) {
  if (this.length) fn(this);
  return this;
}

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## models/post.rb
class Post
  
  include DataMapper::Resource
  
  property :id, Serial
  property :title, String, :nullable => false
  property :body, Text
  property :created_at, DateTime
  property :updated_at, DateTime

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## config/router.rb
Merb.logger.info("Compiling routes...")
Merb::Router.prepare do
  
  match("/(:args)", :args => /.*/).
      to(:controller => "default", :action => 'index')
  
end

## app/controllers/default.rb

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## /Library/Application Support/Macromedia/mm.cfg
ErrorReportingEnable=1
TraceOutputFileEnable=1

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No tests matched config/initializers/load_app_config.rb
No tests matched spec/controllers/sessions_controller_spec.rb
No tests matched spec/helpers/sessions_helper_spec.rb
No tests matched spec/models/comment_spec.rb
No tests matched spec/spec_helper.rb
No tests matched config/app_config.yml
No tests matched config/initializers/new_rails_defaults.rb
No tests matched lib/tasks/rspec.rake
No tests matched config/locales/en.yml
No tests matched spec/fixtures/comments.yml

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# -*- ruby -*-
 
module Autotest::RedGreen
  Autotest.send(:alias_method, :real_ruby, :ruby)
  Autotest.send(:define_method, :ruby) do |*args|
      real_ruby + %[ -rrubygems -e "require 'redgreen'" ] 
  end
 
  # Clean the output so other modules can work correctly
  Autotest.add_hook :ran_command do |at|