Rails - May 2006 - Help with observe_field

Folks,

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
thingy!)
  def search
    @phrase = request.raw_post || request.query_string
    matcher = Regexp.new(@phrase)    
    @results = WORDLIST.find_all {|word|word =~ matcher}
    render(:layout => false)
  end
end


__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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Marcus,
 
I believe your field has to be inside a "start_form_tag" and
"end_form_tag" pair before you can use the "observe" on it.
 
Nathan

________________________________

From: rails-bounces@lists.rubyonrails.org
[mailto:rails-bounces@lists.rubyonrails.org] On Behalf Of Marcus
Blankenship
Sent: Tuesday, May 23, 2006 11:03 AM
To: rails@lists.rubyonrails.org
Subject: [Rails] Help with observe_field



Folks, 

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
thingy!) 
  def search 
    @phrase = request.raw_post || request.query_string 
    matcher = Regexp.new(@phrase)    
    @results = WORDLIST.find_all {|word|word =~ matcher} 
    render(:layout => false) 
  end 
end 


__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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