Auto Completion plugin
Ruby
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lib
test
README
Rakefile
init.rb

README

Example:

  # Controller
  class BlogController < ApplicationController
    auto_complete_for :post, :title
  end

  # View
  <%= text_field_with_auto_complete :post, title %>

By default, auto_complete_for limits the results to 10 entries,
and sorts by the given field.

auto_complete_for takes a third parameter, an options hash to
the find method used to search for the records:

  auto_complete_for :post, :title, :limit => 15, :order => 'created_at DESC'

This fork adds the record id to the list content tag. The id can then be used
in an :after_update_element.

Example: 

# View

<%= text_field_with_auto_complete :person, :first_name, {}, 
    { :method => :get, 
      :after_update_element => "function(element,value)
        { window.location.href = '/people/'+value.id+'/edit' }" } %> 

For more examples, see script.aculo.us:
* http://script.aculo.us/demos/ajax/autocompleter
* http://script.aculo.us/demos/ajax/autocompleter_customized

Copyright (c) 2007 David Heinemeier Hansson, released under the MIT license