Senín ( con n )

Uno de mis plugins favoritos de Firefox screengrab se queda en el camino. Screengrab es un cómodo y ligero plugin que permite capturar la imagen del navegador permitiendo capturar la página completa o sólmanete la parte visible. Es muy útil y práctico pero la salida de Firefox 6 y sucesivas versiones, han dejado el plugin inutilizable. Tal y como indica su creador Andy Mutton, la funcionalidad se ha roto y no dispone de tiempo para investigar. Además ha dejado de usar Firefox en favor de Chrome.

Andy Mutton comunica que no seguirá el desarrollo de screegrab

Como alternativas estoy probando :
pagesaver
Awesome Screenshot Capture & Annotate

Muchas gracias Andy Mutton por desarrollar screengrab !

Esto me hace pensar si algún día prohibirán a los desarrolladores tener familia para que sigan creando…

P.D.: Al final me quedo con “Awesome screenshot captue & anottate” es cómodo, práctico y permite agregar notas en las capturas de pantalla como esta :

Llevo toda la tarde con el error :

Error authenticating
/auth/failure?message=invalid_response

He estado siguiendo el manual de asciicast 241 241-simplemente-omniauth

y me faltó por crear el método create_with_omniauth

/app/models/user.rb

class User < ActiveRecord::Base
  def self.create_with_omniauth(auth)
    create! do |user|
      user.provider = auth["provider"]
      user.uid = auth["uid"]
      user.name = auth["user_info"]["name"]
    end
  end
end

Estoy usando Paperclip para asociar adjuntos y al generar el modelo casca este error :

$ rails generate paperclip pet photo
/var/lib/gems/1.9.1/gems/activesupport-3.1.3/lib/active_support/dependencies.rb:240:in `require': cannot load such file -- cocaine (LoadError)
    from /var/lib/gems/1.9.1/gems/activesupport-3.1.3/lib/active_support/dependencies.rb:240:in `block in require'
    from /var/lib/gems/1.9.1/gems/activesupport-3.1.3/lib/active_support/dependencies.rb:223:in `block in load_dependency'
    from /var/lib/gems/1.9.1/gems/activesupport-3.1.3/lib/active_support/dependencies.rb:640:in `new_constants_in'
    from /var/lib/gems/1.9.1/gems/activesupport-3.1.3/lib/active_support/dependencies.rb:223:in `load_dependency'
    from /var/lib/gems/1.9.1/gems/activesupport-3.1.3/lib/active_support/dependencies.rb:240:in `require'
    from /home/jorge/Proyects/Clientes/elcielodelosgatos/vendor/plugins/paperclip/lib/paperclip.rb:45:in `'
    from /var/lib/gems/1.9.1/gems/activesupport-3.1.3/lib/active_support/dependencies.rb:240:in `require'
    from /var/lib/gems/1.9.1/gems/activesupport-3.1.3/lib/active_support/dependencies.rb:240:in `block in require'
    from /var/lib/gems/1.9.1/gems/activesupport-3.1.3/lib/active_support/dependencies.rb:223:in `block in load_dependency'
    from /var/lib/gems/1.9.1/gems/activesupport-3.1.3/lib/active_support/dependencies.rb:640:in `new_constants_in'
    from /var/lib/gems/1.9.1/gems/activesupport-3.1.3/lib/active_support/dependencies.rb:223:in `load_dependency'
    from /var/lib/gems/1.9.1/gems/activesupport-3.1.3/lib/active_support/dependencies.rb:240:in `require'
    from /home/jorge/Proyects/Clientes/elcielodelosgatos/vendor/plugins/paperclip/init.rb:1:in `block in '
    from /var/lib/gems/1.9.1/gems/railties-3.1.3/lib/rails/plugin.rb:81:in `eval'
    from /var/lib/gems/1.9.1/gems/railties-3.1.3/lib/rails/plugin.rb:81:in `block in '
    from /var/lib/gems/1.9.1/gems/railties-3.1.3/lib/rails/initializable.rb:30:in `instance_exec'
    from /var/lib/gems/1.9.1/gems/railties-3.1.3/lib/rails/initializable.rb:30:in `run'
    from /var/lib/gems/1.9.1/gems/railties-3.1.3/lib/rails/initializable.rb:55:in `block in run_initializers'
    from /var/lib/gems/1.9.1/gems/railties-3.1.3/lib/rails/initializable.rb:54:in `each'
    from /var/lib/gems/1.9.1/gems/railties-3.1.3/lib/rails/initializable.rb:54:in `run_initializers'
    from /var/lib/gems/1.9.1/gems/railties-3.1.3/lib/rails/application.rb:96:in `initialize!'
    from /var/lib/gems/1.9.1/gems/railties-3.1.3/lib/rails/railtie/configurable.rb:30:in `method_missing'
    from /var/lib/gems/1.9.1/gems/railties-3.1.3/lib/rails/application.rb:83:in `require'
    from /var/lib/gems/1.9.1/gems/railties-3.1.3/lib/rails/application.rb:83:in `require_environment!'
    from /var/lib/gems/1.9.1/gems/railties-3.1.3/lib/rails/commands.rb:22:in `'
    from script/rails:6:in `require'
    from script/rails:6:in `
'

Para solucionarlo, hay que instalar la gema cocaine ( A small library for doing (command) lines )

gem install cocaine

Sige apareciendo el error así que hay que agregarlo a Gemfile

echo "gem 'cocaine'" >> Gemfile

y ya funciona.

Una de ruby + rails en Debian wheezy.
Estoy tocando ruby on rails de nuevo y al actualizar rails en debian he tenido que hacer unos retoques en la instalación.

Lo primero es instalar ruby1.9.3

apt-get install  ruby1.9.3

luego, rails a la última 3.1 hay que hacerlo con gem ya que en Debian aún no está disponible

gem install rails

Pues bien, me he creado un proyecto nuevo y al ejecutar el servidor me aparece este mensaje:

$rails server
/var/lib/gems/1.9.1/gems/execjs-1.2.12/lib/execjs/runtimes.rb:47:in `autodetect': Could not find a JavaScript runtime. See https://github.com/sstephenson/execjs for a list of available runtimes. (ExecJS::RuntimeUnavailable)
	from /var/lib/gems/1.9.1/gems/execjs-1.2.12/lib/execjs.rb:5:in `<module:ExecJS>'
	from /var/lib/gems/1.9.1/gems/execjs-1.2.12/lib/execjs.rb:4:in `<top (required)>'
	from /var/lib/gems/1.9.1/gems/bundler-1.0.21/lib/bundler/runtime.rb:68:in `require'
	from /var/lib/gems/1.9.1/gems/bundler-1.0.21/lib/bundler/runtime.rb:68:in `block (2 levels) in require'
	from /var/lib/gems/1.9.1/gems/bundler-1.0.21/lib/bundler/runtime.rb:66:in `each'
	from /var/lib/gems/1.9.1/gems/bundler-1.0.21/lib/bundler/runtime.rb:66:in `block in require'
	from /var/lib/gems/1.9.1/gems/bundler-1.0.21/lib/bundler/runtime.rb:55:in `each'
	from /var/lib/gems/1.9.1/gems/bundler-1.0.21/lib/bundler/runtime.rb:55:in `require'
	from /var/lib/gems/1.9.1/gems/bundler-1.0.21/lib/bundler.rb:122:in `require'
	from /var/lib/gems/1.9.1/gems/railties-3.1.3/lib/rails/commands.rb:52:in `require'
	from /var/lib/gems/1.9.1/gems/railties-3.1.3/lib/rails/commands.rb:52:in `block in <top (required)>'
	from /var/lib/gems/1.9.1/gems/railties-3.1.3/lib/rails/commands.rb:49:in `tap'
	from /var/lib/gems/1.9.1/gems/railties-3.1.3/lib/rails/commands.rb:49:in `<top (required)>'
	from script/rails:6:in `require'
	from script/rails:6:in `<main>'

Como hace mucho que no toco rails y ha cambiado bastante me he ido a buscar a google y encontré este enlace : http://www.ruby-forum.com/topic/1899392

La solución en mi caso ha sido moficando el fichero Gemfile

echo "gem 'execjs'" >> Gemfile
echo "gem 'therubyracer'" >> Gemfile
bundle install

Con ‘bundle install’ rails se encarga de instalar lo que necesite, en mi caso ha funcionado correctamente.