observe_field value in controller

rubyonrails-talk
1

how do I access the value of the field referenced in observe_field from within my controller for the action specified?

I have a select with id "channelnotes" on it, to which I have an observe_field that correctly works in calling channels.notesboxchange. In my controller, I am trying to pick up the value of the select from puts params['channelnotes'] and puts params[:channelnotes] and getting nil, even when the select has text selected in it.

I must be doing something stoopid. Below is my .html.erb, as well as the html/js produced by it. Thanks, Janna B.

<% form_for :associates, :html => {:name => 'upsform',:id => 'upsform'},:url=>{ :action =>"uplog_update_form", :controller =>"channels"} do |f| %> <div id="notesdiv" style="float: right;"> Notes: <SELECT name="channelnotes" id="channelnotes" style="width: 350px; onKeyDown="fnKeyDownHandler(this, event);" onKeyUp="fnKeyUpHandler_A(this, event); return false;" onKeyPress = "return fnKeyPressHandler_A(this, event);" onChange="fnChangeHandler_A (this, event);">   <OPTION value="" style="COLOR:#ff0000;BACKGROUND-COLOR:#ffff00;"></

  <option>Subrata</option>   <option>Chakrabarty</option>   <option>Tiger</option>   <option>Software</option>   <option>India</option> </SELECT> </div> <%= observe_field "channelnotes", :url => {:controller => :channels, :action => 'notesboxchange'} %>

<form action="/channels/uplog_update_form" id="upsform" method="post" name="upsform"><div style="margin:0;padding:0"><input name="authenticity_token" type="hidden" value="S7PkvbfwdF+Da2/ PbRUKW0YThoCF+qMynOAJyQoOi3c=" /></div> <div id="notesdiv" style="float: right;"> Notes: <SELECT name="channelnotes" id="channelnotes" style="width: 350px; onKeyDown="fnKeyDownHandler(this, event);" onKeyUp="fnKeyUpHandler_A(this, event); return false;" onKeyPress = "return fnKeyPressHandler_A(this, event);" onChange="fnChangeHandler_A (this, event);">   <OPTION value="" style="COLOR:#ff0000;BACKGROUND-COLOR:#ffff00;"></

  <option>Subrata</option>   <option>Chakrabarty</option>   <option>Tiger</option>   <option>Software</option>

  <option>India</option> </SELECT> </div> <script type="text/javascript"> //<![CDATA[ new Form.Element.EventObserver('channelnotes', function(element, value) {new Ajax.Request('/channels/notesboxchange', {asynchronous:true, evalScripts:true, parameters:value + '&authenticity_token=' + encodeURIComponent('S7PkvbfwdF+Da2/ PbRUKW0YThoCF+qMynOAJyQoOi3c=')})}) //]]> </script>

2

how do I access the value of the field referenced in observe_field from within my controller for the action specified?

<%= observe_field "channelnotes", :url => {:controller=> :channels, :action => 'notesboxchange'}

:with => whatever_you_want_the_parameter_key_to_be_named

%>

HTH, Bill

3

THanks Bill, yes it works now as:

<%= observe_field "channelnotes",