app/controllers/autocomplete_controller.rb

	autocomplete_controller.rb revision acf37010abb588969e6843692a367f6be73e30cd
class AutocompleteController < ActionController::Base

  MIN_LENGTH = 3

  def index
    query = params[:query].to_s.strip

    if query.length < MIN_LENGTH
      @result = []
    else
      autocomplete = Autocomplete.new(params[:scope], query)
      @result = autocomplete.result
    end
  rescue Autocomplete::InvalidScope => error
    render :text => error.message, :status => :unprocessable_entity
  end

end