Tweet capturado con TweetStream

rough_draft.md

##Flujo

• Abrir un cliente al Streaming API de twitter via la gema TweetStream
• Este cliente debe estar siempre funcionando y proveer un comportamiento cuando haya necesidad de reconnectarse (por problemas en twitter y diversos) y en caso de error (por las mismas causas) # Leer documentacion de la gema
• El cliente debe enviar todos los tweets capturados en base a un query='on @dimensions, @dimensions' a un Array o a un queue.
• A través de un background_job, procesar el queue, leyendo de cada tweet capturado, el atributo :expanded_url (provisionando que puede ser nulo o empty)
• El background_job debe hacer una búsqueda en los feed_entries con ese valor capturado. Si encuentra un match, entonces += 1 a su tweet_count.

tweet.rb

#<Twitter::Status:0x00000101127cd8
 @attrs=
  {:entities=>
    {:user_mentions=>
      [{:indices=>[31, 42],
        :id_str=>"248742679",
        :name=>"Dimensions",
        :screen_name=>"dimensions",
        :id=>248742679}],
     :urls=>
      [{:indices=>[43, 63],
        :url=>"http://t.co/I2ndodld",
        :expanded_url=>
         "http://slog.thestranger.com/slog/archives/2012/07/03/why-are-american-kids-so-spoiled",
        :display_url=>"slog.thestranger.com/slog/archives/…"}],
     :hashtags=>[]},
   :coordinates=>nil,
   :geo=>nil,
   :text=>"Interesting article I found on @dimensions http://t.co/I2ndodld",
   :place=>nil,
   :created_at=>"Wed Jul 04 16:54:50 +0000 2012",
   :possibly_sensitive_editable=>true,
   :retweet_count=>0,
   :in_reply_to_user_id=>nil,
   :retweeted=>false,
   :possibly_sensitive=>false,
   :in_reply_to_status_id=>nil,
   :source=>
    "<a href=\"http://twitter.com/tweetbutton\" rel=\"nofollow\">Tweet Button</a>",
   :in_reply_to_status_id_str=>nil,
   :truncated=>false,
   :id_str=>"220561316258131969",
   :in_reply_to_user_id_str=>nil,
   :favorited=>false,
   :user=>
    {:default_profile_image=>false,
     :lang=>"es",
     :time_zone=>"Pacific Time (US & Canada)",
     :profile_background_color=>"131516",
     :followers_count=>156,
     :profile_image_url=>
      "http://a0.twimg.com/profile_images/1197477861/me3a_normal.jpg",
     :verified=>false,
     :profile_background_tile=>true,
     :favourites_count=>17,
     :created_at=>"Fri Mar 12 20:27:42 +0000 2010",
     :friends_count=>350,
     :contributors_enabled=>false,
     :geo_enabled=>true,
     :profile_sidebar_fill_color=>"efefef",
     :url=>"http://antillas.tumblr.com",
     :follow_request_sent=>nil,
     :following=>nil,
     :profile_background_image_url_https=>
      "https://si0.twimg.com/images/themes/theme14/bg.gif",
     :description=>
      "Readings, ramblings and musings of an aspiring human being",
     :profile_sidebar_border_color=>"eeeeee",
     :show_all_inline_media=>false,
     :listed_count=>5,
     :notifications=>nil,
     :location=>"Mexicali, Mexico",
     :statuses_count=>1420,
     :profile_use_background_image=>true,
     :id_str=>"122466898",
     :default_profile=>false,
     :profile_text_color=>"333333",
     :protected=>false,
     :is_translator=>false,
     :profile_background_image_url=>
      "http://a0.twimg.com/images/themes/theme14/bg.gif",
     :profile_image_url_https=>
      "https://si0.twimg.com/profile_images/1197477861/me3a_normal.jpg",
     :screen_name=>"antillas21",
     :name=>"Antonio Antillon",
     :profile_link_color=>"009999",
     :id=>122466898,
     :utc_offset=>-28800},
   :id=>220561316258131969,
   :contributors=>nil,
   :in_reply_to_screen_name=>nil}>

tweet_parsing.rb

# tweet representa el tweet capturado.
# si hacemos un pp tweet.attrs[:entities]
{:user_mentions=>
  [{:indices=>[31, 42],
    :id_str=>"248742679",
    :name=>"Dimensions",
    :screen_name=>"dimensions",
    :id=>248742679}],
 :urls=>
  [{:indices=>[43, 63],
    :url=>"http://t.co/I2ndodld",
    :expanded_url=>
     "http://slog.thestranger.com/slog/archives/2012/07/03/why-are-american-kids-so-spoiled",
    :display_url=>"slog.thestranger.com/slog/archives/…"}],
 :hashtags=>[]}

# notamos como :urls es un array, y que en este caso, solo contiene el url de destino de la noticia
# http://slog.thestranger.com/slog/archives/2012/07/03/why-are-american-kids-so-spoiled
# entonces abramos el primer elemento de ese array
# pp tweet.attrs[:entities][:urls][0]
{:indices=>[43, 63],
 :url=>"http://t.co/I2ndodld",
 :expanded_url=>
  "http://slog.thestranger.com/slog/archives/2012/07/03/why-are-american-kids-so-spoiled",
 :display_url=>"slog.thestranger.com/slog/archives/…"}

# lo que necesito es capturar el valor de :expanded_url

@feed_entry_url = tweet.attrs[:entities][:urls][0][:expanded_url]
# => "http://slog.thestranger.com/slog/archives/2012/07/03/why-are-american-kids-so-spoiled"