Forum: Ruby on Rails Help with observe_field

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Marcus B. (Guest)
on 2006-05-23 20:06
(Received via mailing list)

When I use observe_field, I get a javascript error "Form is not
defined".  Any thoughts?

__View: search.rhtml__
<label for="search">Search:</label>
<%= text_field_tag :search %>
<%= observe_field(:search,
                 :frequency => 0.25,
                 :update => :search_hits,
                 :url => { :action => "search"}) %>
<p>Search Results:</p>
<div id="search_hits"></div>

__Controller: search_controller.rb__
class SearchController < ApplicationController
  WORDLIST = %w(Rails is a full-stack, really cool, open-source, free
  def search
    @phrase = request.raw_post || request.query_string
    matcher =
    @results = WORDLIST.find_all {|word|word =~ matcher}
    render(:layout => false)

__Error: Form is not defined__

__Line error occurs__
new Form.Element.Observer('search', 0.25, function(element, value) {new
Ajax.Updater('search_hits', '/facilities/search', {asynchronous:true,
evalScripts:true, parameters:value})})
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