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barleysodas/app/controllers/autocomplete_controller.rb

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class AutocompleteController < ApplicationController
append_before_filter :ensure_xhr
##
# Automatically finds and returns a nice list of things. It is stupid in that
# it only finds the first thing available, but it will find it all.
#
# It expects to have parameters passed in the form:
#
# 'brewery' => { 'name' => 'foo' }
#
# Only one of those sets. If this is done, then all will be peachy.
#
def index
key = params.keys.detect do |x|
x.to_s != 'action' and x.to_s != 'controller'
end
render :nothing => true, :status => 500 if key.nil?
@value = params[key].keys.first
class_name = key.camelize.constantize
render :nothing => true unless class_name.new.respond_to?(@value)
@items = class_name.find(:all, :order => "#{@value} ASC", :select => @value,
:conditions => [ "lower(#{@value}) LIKE ?",
"%#{params[key][@value].downcase}%" ])
render :partial => 'autocomplete/results'
end
end