####How to? Easy. First get active scaffold if you haven't yet. Then, add this to your Gemfile:

gem 'active_scaffold_export'

if you're using REE or Ruby 1.8.7, you need to add backports gem as well as fastercsv since REE lacks ruby 1.9 streaming features and fastercsv is in core in 1.9

gem 'backports'
gem 'fastercsv'

Remember to bundle install. Add to application.css:

 *= require active_scaffold_export

Now let's add it to controller, inside active_scaffold config block:

conf.actions.add :export
# you can filter or sort columns if you want
conf.export.columns = %w(name last_name phone address) 
# you can define a default values for the exporting form
conf.export.default_deselected_columns = %w(phone address)
conf.export.default_delimiter = ";"
conf.export.force_quotes = "true"

And enjoy happy exporting :)

It's controlled the same way as Active Scaffold. The extra actions added are:

• :show_export for the options form
• :export for retrieving the data Tested with AS internal security and Cancan

Go in the same active scaffold scope:

active_scaffold:
    columns_for_export: Columnas para exportar
    export_options: Opciones de exportación
    this_page: esta página
    all_pages: todas las páginas 

This gem has not been tested in other rubies than REE and Ruby 1.9. For contact, help, support, comments, please use Active Scaffold official mailing list [email protected]