Useful stuff for project

_stuff.txt

Permalinks/Pretty urls:
https://github.com/norman/friendly_id
http://railscasts.com/episodes/314-pretty-urls-with-friendlyid

Globalization (untested):
https://github.com/svenfuchs/globalize3

CMS:
http://activeadmin.info/

Active_link_to:
https://github.com/twg/active_link_to

Localized routes:
https://github.com/kwi/i18n_routing

array_iterator.rb

# lib/array_iterator.rb

# Contains some useful iteration methods that's not provided by Rails by defualt.
# 
# One can for instance step through the items in the array by 
# using a "next" method instead of a loop.

# Usage:
# require 'array_iterator'
# my_array  = [1,2,3,4,5]
# array_itr = ArrayIterator.new(my_array)
# array_itr.next # => 1
# array_itr.next # => 2
# array_itr.step
# array_itr.next # => 4


class ArrayIterator
  
  @iterator_content = []
  @iterator_content_count = 0
  @position = -1
  
  def initialize(ary)
    @iterator_content = ary
    @iterator_content_count = @iterator_content.count
    @position = -1
  end
  
  def next
    @position = @position + 1
    if @position < @iterator_content_count
      return @iterator_content[@position]
    end
    return nil
  end
  
  def step(length = 1)
    @postion = @position + length
  end
  
  def reset
    @position = -1
  end
  
end

error_handling.rb

# Methods to catch 404, 500 and all other errors that 
# can occur and render a template with the application layout.

# config/routes.rb
unless Rails.application.config.consider_all_requests_local
  match '*not_found', to: 'application#render_missing_page'
end

# app/controllers/application_controller.rb
  unless Rails.application.config.consider_all_requests_local
    rescue_from Exception, with: lambda { |exception| render_error 500, exception }
    rescue_from ActionController::RoutingError, ActionController::UnknownController, ::AbstractController::ActionNotFound, ActiveRecord::RecordNotFound, with: lambda { |exception| render_error 404, exception }
  end
  
  def render_missing_page
    render :template => "shared/404page", :layout => true, :status => 404
  end
  
  private
    def render_error(status, exception)
      respond_to do |format|
        format.html { render template: "shared/#{status}page", layout: 'layouts/application', status: status }
        format.all { render nothing: true, status: status }
      end
    end

# app/views/shared/404page.html.erb
Page missing.

# app/views/shared/500page.html.erb
Something went wrong.

localization.rb

# app/controllers/application_controller.rb

before_filter :set_locale
  
def set_locale
  locale = params[:locale]
  I18n.locale = LOCALES.include?(locale) ? locale : I18n.default_locale  # Where LOCALES is a constant array containing all available locales for this app
end

def default_url_options(options={})
  { :locale => I18n.locale }
end


# any/other/file.rb
locale = params[:locale]
# or
locale = I18n.locale