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MySQL reserved words as name Model backup


If you're using bloglines
(online feed reader) will probably keep the posts you find interesting using the "keep new".

After using the feed reader for a while, the number of interesting posts I have saved so important. I I thought there would be no fun to lose this data, so I made a script that makes a backup of these posts in an xml file.

This script helped me to prove two very useful Ruby libraries:

mechanize and hpricot
. Mechanize can browse web using simple commands as you see in the script. Hpricot can parse HTML and XML documents very easy and intuitive.

To use the script you need to install the following libraries:
gem install json gem install hpricot gem install
ActiveSupport gem install mechanize

  
 
 And here is the script, I think is understood quite well what he does. I hope that well help you make a backup of your bloglines account (remember to change the EMAIL and PASSWORD values) or to learn a bit of work mechanize and hpricot. 
 
 
  require "rubygems" 

require "hpricot"
require "json"
require "mechanize"
require "active_support"

 bloglines  # Reads a tree structure javascript 
 # That has all data feeds. Def 
 read_tree (tree_base, label = "") 
 tree_base.each do   end 
  
 # Add more memory to hpricot otherwise couldn't load some webs. 
 Hpricot.buffer_size = 262144 
  
 agent = WWW::Mechanize.new 
 page = agent.get 'http://www.bloglines.com/login' 
  
 form = page.forms[1] 
 form.email = 'EMAIL' 
 form.password = 'PASSWORD' 
  << [tree["n"], label, tree["kn"], "http://www.bloglines.com/myblogs_display?sub=#{tree["id"]}&site=#{tree["sid"]}"]
 page = agent.submit form 
  
 # Get the bloglines sindicated feeds 
 menu_page = agent.get "http://www.bloglines.com/myblogs_subs" 
 start_text = "var initTreeData = " 
 end_text = "\n;\n" 
 js_feeds_tree_str = menu_page.content[menu_page.content.index(start_text)+start_text.size..menu_page.content.index(end_text)] 
  feeds_tree = JSON.parse js_feeds_tree_str.gsub("\\","") 
 @feeds = [] 
 read_tree(feeds_tree["kids"]) 
  
 puts "&lt;bloglines_saves&gt;" 
 @feeds.each do  Index  sqlite and development libraries: 
 
 
 
 sudo apt-get install sqlite3 libsqlite3-dev 
 
 
 
 
 
 Installing sqlite3-ruby interface to connect to sqlite3 database from Ruby. 
 
 
 
 sudo gem install sqlite3-ruby 
 (
 If multiple versions to choose from, selecting the latest version 
 ruby. 
) 
 
 
 
 
 
 Create the database, we really only an empty file that is all you need sqlite3. 
 
 
 database_name_dev.db 
 
 touch touch touch database_name_test.db 
 database_name_prod.db 
 
 
 Set 
  

Ruby on Rails application to use these databases.
Edit the file config / database.yml:

• development: adapter :
sqlite3 database: db / database_name_dev.db
• test: adapter: sqlite3
database: db / database_name_test.db

production: adapter :

sqlite3 database: db / database_name_prod.db

1. 
   

     
    Ready! from here you can develop your Rails application using sqlite3 as database. 
     

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Last week I was in Congress
HLT NAACL (North American Association for Computational Linguistics Human Language Technologies) in Rochester (New York). We presented a paper on automatic acquisition of lexical information ("Automatic Acquisition of Grammatical Types for Nouns", BEL, N.; MIRROR, S., Marimon, M.

PDF).

  The conference was very interesting, I would emphasize that there is much work to do in the area of \u200b\u200bcomputational linguistics. Google, which is deeply involved in these issues, presented the results of machine translation. It seems that the best statistical methods to translate Chinese into English. Still only have a 40% success using terabytes of data! The that can sense the complexity of the task. 
 
 This week in the U.S. also allowed me to do some sightseeing and verify that indeed, America is like in the movies. It's so funny to go looking like everything that appears in the films you find on the street.  
 Below you will see some photos of the trip.  
 New York:  

 Rochester:  
 
 
 
  

American way of life:

  Niagara Falls: 
 
 
 
 
 
 
 
 

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bloglines Install rails sqlite3 in Ubuntu

Amazon has changed its policy prices on its S3 service (storage), which also affects the services EC2 (Elastic Computing) and SQS (message passing).

changes are reflected in rates of use of bandwidth. Previously the price was $ 0.20 per GB uploaded or downloaded, irrespective of the requests made.

In Amazon have realized that they cost more to serve requests to upload or download data, as charged on one hand the bandwidth usage (upload or download data) and on the other requests: $ 0 , 10 GB for all data uploaded.

$ 0.18 per GB for the first 10 TB of data downloaded per month.

$ 0.16 per GB for the next 40 TB of data downloaded per month. $ 0.13 per GB for data downloaded per month from 50 TB.


$ 0.01 per 1,000 PUT or LIST requests.


$ 0.01 per 10,000 GET requests or other (except DELETE which are free)

These changes will become effective on June 1, 2007.

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Today out the new version of Ubuntu Linux, Ubuntu 7.04 Feisty Fawn. I took advantage of having a pc to reinstall and once I managed to get off the installation CD (not easy due to demand ...) I have installed.
The truth is that the installation every time is easier, traditionally the more complicated the partition, in this version is very well explained by becoming a step further. I noticed that the installation added a migration tool from windows, but as the pc did not have windows I could not test it.
The system is not changed much over the previous version. What I really liked the wifi network detector installed by default, appears when you click on the image of the network that appears by default to the left of the date. This detector can easily connect to any available network with a simple click, something that was missing missing in previous versions. As always I recommend installing a tool to help us with the most common packages that require a complex configuration. I used automatrix2
. When installing I found a problem easily solved (missing libraries). In summary, the steps to install automatrix2 are
sudo apt-get install python2.4-minimal python2.4 wget http://www.getautomatix.com/apt/dists/feisty/main/binary- i386/automatix2_1.1-4.3-7.04feisty_i386.deb sudo dpkg-i-4.3-7.04feisty_i386.deb automatix2_1.1
automatrix2 then run and pick the packages to install:
automatrix2

With this we have installed Ubuntu to see what new surprises we give this version!

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One of the plugins that make up the meta-rails project (
http://meta-rails.rubyforge.org
)

is charged with making a diagram of the application class and provides a query generator
• these classes. To do this I needed to load drivers and their views
directly from this plugin.

• after documenting and testing I have found a way to make it easy.



Upload
• drivers
All ruby \u200b\u200bon rails plugins can have the file in your root folder init.rb
running when loading rails application. This file is the hook (hook) which can be used to introduce
• plugin code in the Rails application.

If we put our drivers in the plugin subdirectory app / controllers to load
• can use the following code:

directory = "# {RAILS_ROOT} / vendor / plugins / NOMBRE_DEL_PLUGIN"

controller_path = File.join (directory , 'app', 'controllers') require "# {controller_path} / NOMBRE_DEL_CONTROLADOR.rb"

$ LOAD_PATH
if defined? (RAILS_GEM_VERSION) and RAILS_GEM_VERSION> = '1 .2.0'
Dependencies.load_paths

else raise "Engines plugin is Needed for running NOMBRE_DEL_PLUGIN with \\
Ruby on Rails version config.controller_paths
end

  
 Analyzing the code we see that this code is executed differently depending 
 use Ruby on Rails version 1.2.0 or later to previous. This is because to work 
 in versions prior to 1.2.0 we need the engines plugin installed ( http://rails-engines.org 

). Once

put this code we can create our drivers doing that inherit from ActionController:: Base class

  
  MetaQuerierController 

def index render: text => "It works!" End end

Views

for our drivers

Once we loaded the drivers, we must assign
1. subdirectories where they can find their views. We do this by changing a class variable with self.template_root:
   MetaQuerierController
   self.template_root
   class = "# {RAILS_ROOT} / vendor / plugins / meta_querier / app / views /" end
   
   
   
   

     
    
    I hope you find it useful, you can find more information at: 
    
    << controller_path
    http://weblog.techno-weenie.net/2007/1/24/understanding-the-rails-initialization-process 
    << controller_path
    
    
    < 1.2.0" if Dir["#{RAILS_ROOT}/vendor/plugins/engines"].empty?