Hi, Yet another newbie here... I''m writing an appliction in Rails, and I''ve Ajaxified my select boxes so they update dynamically. I used the "observe_field" method to monitor changes to my select box. I find that it''s kind of erratic... it updates constantly and makes the selection for me, based on where my mouse happens to be hovering when it does its observation. Not very user friendly. I''d much rather the onChange event, but I''m not sure exactly how to write the syntax for using the event. Here''s my code as it is now: <select id="product[proddesc_pk]" name="product[proddesc_pk]"> <%= options_from_collection_for_select( Product.find_all, "proddesc_pk", "prod_name" ) %> </select></p> <%= observe_field("product[proddesc_pk]", :frequency =>0.25, :update => "component_id_list", :url => { :action => :fill_component_box}, :with => "''id=''+value") %> How would I go about changing that code so that it updates based on an onChange event, rather than the observation? Any help would be greatly appreciated! Thanks, ~ Shanan -- Shanan Suding | shanan.suding@sun.com | (602) 357-4327 (x51609) =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-"Crucify the ego before it''s far too late And leave behind this place so negative and blind and cynical And you will come to find that we are all one mind Capable of all that''s imagined and all conceivable" - Maynard James Keenan, Tool
On Aug 7, 2006, at 11:12 AM, Shanan Suding wrote:> Hi, > > Yet another newbie here... I''m writing an appliction in Rails, and > I''ve Ajaxified my select boxes so they update dynamically. I used > the "observe_field" method to monitor changes to my select box. I > find that it''s kind of erratic... it updates constantly and makes > the selection for me, based on where my mouse happens to be > hovering when it does its observation. Not very user friendly. > I''d much rather the onChange event, but I''m not sure exactly how to > write the syntax for using the event. > > Here''s my code as it is now: > > <select id="product[proddesc_pk]" name="product[proddesc_pk]"> > <%= options_from_collection_for_select( > Product.find_all, "proddesc_pk", "prod_name" > ) %> > </select></p> > <%= observe_field("product[proddesc_pk]", > :frequency =>0.25, > :update => "component_id_list", > :url => { :action => :fill_component_box}, > :with => "''id=''+value") > %> > > How would I go about changing that code so that it updates based on > an onChange event, rather than the observation? > > Any help would be greatly appreciated! > > Thanks, > ~ Shanan > >Here is how you can use the onchange event which is much nicer to work with: <%= select_tag( ''product[proddesc_pk]'', options_from_collection_for_select( Product.find_all, "proddesc_pk", "prod_name") , :onchange => remote_function(:with => "''proddesc_pk =''+value", :loading => "Element.show(''loading-indicator1'')", :url => { :action => : fill_component_box } ) %> Doing it that way will put the value in params[: proddesc_pk] for you . You can then respond with rjs to fill whatever you need to fill. Cheers- -EZra
Shanan Suding wrote:> <select id="product[proddesc_pk]" name="product[proddesc_pk]"> > <%= options_from_collection_for_select( > Product.find_all, "proddesc_pk", "prod_name" > ) %> > </select></p> > <%= observe_field("product[proddesc_pk]", > :frequency =>0.25, > :update => "component_id_list", > :url => { :action => :fill_component_box}, > :with => "''id=''+value") > %> > > How would I go about changing that code so that it updates based on an > onChange event, rather than the observation?Just get rid of the :frequency parameter. -- We develop, watch us RoR, in numbers too big to ignore.