Flash Messages, System Messages, Ruby on Rails, by style, debug and test

controller:

flash[:notice] = "Correct things."
flash[:error]  = "Alert things."
flash[:debug]  = "Simple debug."

views/layouts:

<%- flash.each do |name, msg| -%>
  <%= content_tag :div, msg, :id => "flash_#{name}" %>
<%- end -%>

css out of dev, in test, this can help you in both environments:

#debug{
  display:none;
}

ruby on rails i18n

An approach:

$script/plugin install git://github.com/svenfuchs/rails-i18n.git

$cp config/locales/en.yml config/locales/es-ar.yml

config/environment.rb

  config.time_zone = 'Buenos Aires'
  config.i18n.default_locale = :"es-ar"

app/views/payment_operation/show.html.erb

<%= t('views.payment.show_title', :count => @foo.size, :bar => @foo.name) %>

config/locales/es-ar.yml

es-ar:
    views:
      payment:
        show_title: 
          zero: "Mostrando operación de pago y {{bar}}."
          one: "Mostrando operación de pago y {{bar}}."
          many: "Mostrando operación de pago y {{bar}}."

Ruby on Rails, model, validate alphanumeric and space characters

class Product < ActiveRecord::Base
...
  validates_format_of :name, :with => /^([[:alpha:]]|[[:blank:]])+$/

Survive in php.. a logger method.

function logger($msg){
 if(!isset($GLOBALS['logger'])){
  $GLOBALS['logger'] = fopen("/var/www/apps/logs/dev.log","a");
 }
 fwrite($GLOBALS['logger'],"$msg\n");
}

function request($id = ''){
  logger("dir/file.php::request(id[".$id."])");
...
}

Conceptual views and Implementation Details.

FSM. Finite State Machine. This is real.

http://blog.objectmentor.com/articles/2008/11/27/the-truth-about-bdd

Languages, are implementation details?

http://blog.objectmentor.com/articles/2009/01/15/adopting-new-jvm-languages-in-the-enterprise

jquery jcarousel fade efect

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Change this file:
jquery.jcarousel.js

Add this lines: starting in line 431
next: function() {
this.stopAuto();
$('#mycarousel').fadeOut(1000);
if (this.tail != null && !this.inTail)
this.scrollTail(false);
else
this.scroll(((this.options.wrap == 'both' || this.options.wrap == 'last') && this.options.size != null && this.last == this.options.size) ? 1 : this.first + this.options.scroll);
$('#mycarousel').fadeIn(1000);
},

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xubuntu ruby on rails

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Xubuntu 8.10 install.
$sudo aptitude install ruby
http://www.ruby-lang.org
http://rubyonrails.org
http://www.rubygems.org

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$sudo aptitude install libyaml-ruby
$sudo aptitude install libzlib-ruby
$sudo aptitude install curl
$curl -O http://files.rubyforge.vm.bytemark.co.uk/rubygems/rubygems-1.3.1.tgz
$tar -xvzf rubygems-1.3.1.tgz
$sudo ruby setup.rb
$rm -r rubygems-1.3.1
$rm rubygems-1.3.1.tgz
( $gem
The program 'gem' can be found in the following packages:
* rubygems1.8
* rubygems1.9 )
$sudo ln -s /usr/bin/gem1.8 /usr/bin/gem
$gem --version
1.3.1
$sudo gem install rails

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$sudo aptitude install mysql-server
$mysql -u root -p
mysql>create database stock_development;
mysql>create database stock_test;
mysql>create database stock_production;
mysql>grant all on stock_development.* to 'stock_user'@'localhost' identified by 'stock_user';
mysql>grant all on stock_test.* to 'stock_user'@'localhost' identified by 'stock_user';
mysql>grant all on stock_production.* to 'stock_user'@'localhost' identified by 'stock_user';
$sudo gem install mysql
no such file to load -- mkmf (LoadError)
$sudo aptitude install ruby1.8-dev
$sudo gem install mysql
/usr/bin/ruby1.8 extconf.rb install mysql
checking for mysql_query() in -lmysqlclient... no
checking for main() in -lm... yes
checking for mysql_query() in -lmysqlclient... no
checking for main() in -lz... no
checking for mysql_query() in -lmysqlclient... no
checking for main() in -lsocket... no
checking for mysql_query() in -lmysqlclient... no
checking for main() in -lnsl... yes
checking for mysql_query() in -lmysqlclient... no
*** extconf.rb failed ***
$sudo aptitude install libmysql-ruby

---

$mkdir src
$cd src
$rails stock
$cd stock
$script/console
(sh: irb: not found)
$sudo aptitude install irb1.8
$sudo ln -s /usr/bin/irb1.8 /usr/bin/irb
$script/console
no such file to load -- net/https
$sudo aptitude install libopenssl-ruby

---

$script/generate scaffold Provider name:string iva_type:integer
$rake db:migrate

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$sudo aptitude install gedit

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$sudo aptitude install git
$sudo aptitude install git-core
$git clone http://github.com/lguardiola/documentation_hacks
$cp -r documentation_hacks vendor/plugins
$rake doc:models:annotate

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$script/plugin install git://github.com/technoweenie/restful-authentication.git
$script/generate authenticated user sessions
$script/plugin install git://github.com/timcharper/role_requirement.git
$script/generate roles Role User
No such file or directory - /home/maximilianou/src/stock1/app/controllers/application.rb
$cp app/controllers/application_controller.rb app/controllers/application.rb
$script/generate roles Role User
$mv app/controllers/application.rb app/controllers/application_controller.rb
$rake db:migrate

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