# Observe\_field synchronous request **URL:** \ **Category:** Rails\ **Created:** [June 14, 2008, 5:11am UTC](https://www.ruby-forum.com/t/observe-field-synchronous-request/140446 "2008-06-14T05:11:28Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![indigoi](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/i/b3f665/32.png) [@indigoi](https://www.ruby-forum.com/u/indigoi)\ **Post date:** [June 14, 2008, 5:11am UTC](https://www.ruby-forum.com/t/observe-field-synchronous-request/140446/1 "2008-06-14T05:11:28Z")
I am using an observe field that completely re-renders a page based on what language the user selects. I would like to do this and force the action into a sychronous action so when the user wants to copy the url and e-mail it to someone else, they get the same language. Any clue how to do this? If you can do it without observe\_field, that would be fine with me, but it needs to happen as soon as the user picks a selection from the drop down menu. \<%= f.select\_tag :show\_language, options\_for\_select([“English”, “French”, “Spanish”]) %\> \<%= observe\_field(:show\_language, :update =\> ‘wrapper’,:url =\> {:action =\> :search\_language, :phrase =\> @phrase.word}, :frequency =\> 0.2, :on =\> ‘focus’, :with =\> “‘language=’ + encodeURIComponent(value)”) %\> Using rails 2.0.2 and leopard 10.5. ---
**Author:** ![indigoi](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/i/b3f665/32.png) [@indigoi](https://www.ruby-forum.com/u/indigoi)\ **Post date:** [June 14, 2008, 12:38pm UTC](https://www.ruby-forum.com/t/observe-field-synchronous-request/140446/2 "2008-06-14T12:38:33Z")
On 14 Jun 2008, at 04:11, Richard S. wrote: > \<%= f.select\_tag :show\_language, options\_for\_select([“English”, > “French”, “Spanish”]) %\> Have you tried using the select tag’s onchange property (:onchange =\> remote\_function(:url =\> {…}) ? What do you mean by forcing the action into a synchronous action ? Fred ---
**Author:** ![indigoi](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/i/b3f665/32.png) [@indigoi](https://www.ruby-forum.com/u/indigoi)\ **Post date:** [June 14, 2008, 5:46pm UTC](https://www.ruby-forum.com/t/observe-field-synchronous-request/140446/3 "2008-06-14T17:46:37Z")
Frederick C. wrote: > On 14 Jun 2008, at 04:11, Richard S. wrote: > > > \<%= select\_tag :show\_language, options\_for\_select([“English”, > > “French”, “Spanish”]) %\> > > Have you tried using the select tag’s onchange property (:onchange =\> > remote\_function(:url =\> {…}) ? > What do you mean by forcing the action into a synchronous action ? > > Fred That is way simpler than using observe field thanks! By “forcing a synchronous action” i meant that i wanted the page to refresh totally, with a new url and everything. When i use :onchange or observe\_field, i can only :update =\> “a\_portion\_of\_the\_page” and my url doesn’t change. So if a user used my select box to change the language from english to french and then coppied the url and sent it to someone else, when the other person clicked the url, it will incorrectly take them to the page marked as english. AJAX is awesome, but sometimes its a pain in the ass. So if you know how to force the server to re-render the entire page even if the action is triggered with ajax, let me know, thanks!! ---
**Author:** ![indigoi](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/i/b3f665/32.png) [@indigoi](https://www.ruby-forum.com/u/indigoi)\ **Post date:** [June 14, 2008, 6:01pm UTC](https://www.ruby-forum.com/t/observe-field-synchronous-request/140446/4 "2008-06-14T18:01:35Z")
> So if you know how to force the server to re-render the entire page even > if the action is triggered with ajax, let me know, thanks!! scrap the update and either: - in your rjs use page.redirect\_to - or, don’t use ajax at all (ie just write the onselect yourself. you can use update\_page if you can’t stand writing raw javascript) Fred ---
**Author:** ![indigoi](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/i/b3f665/32.png) [@indigoi](https://www.ruby-forum.com/u/indigoi)\ **Post date:** [June 14, 2008, 6:48pm UTC](https://www.ruby-forum.com/t/observe-field-synchronous-request/140446/5 "2008-06-14T18:48:29Z")
> scrap the update and either: > > - in your rjs use page.redirect\_to > - or, don’t use ajax at all (ie just write the onselect yourself. you > can use update\_page if you can’t stand writing raw javascript) > > Fred From the api, update\_page doesn’t look it can be used to force my url to be changed, page.redirect\_to looks promising, but i’m not familiar with rjs implementation. In rails 1.6 when passing a ajax call such as \<%= link\_to\_remote %\> it used to be as simple as passing :type =\> :synchronous in the code, but this doesn’t seem to work anymore, and I can’t find any info on it online. can you point me to an example? ---
**Author:** ![indigoi](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/i/b3f665/32.png) [@indigoi](https://www.ruby-forum.com/u/indigoi)\ **Post date:** [June 14, 2008, 7:06pm UTC](https://www.ruby-forum.com/t/observe-field-synchronous-request/140446/6 "2008-06-14T19:06:10Z")
On 14 Jun 2008, at 17:48, Richard S. wrote: > > scrap the update and either: > > > > - in your rjs use page.redirect\_to > > - or, don’t use ajax at all (ie just write the onselect yourself. you > > can use update\_page if you can’t stand writing raw javascript) > > > > Fred > > From the api, update\_page doesn’t look it can be used to force my > url to > update\_page just creates a javascript generator (the think that rjs > uses), so for example update\_page do |page| page.redirect\_to … end will produce window.location = … > be changed, page.redirect\_to looks promising, but i’m not familiar > with > rjs implementation. page.redirect\_to takes the same arguments as a ‘normal’ redirect\_to > In rails 1.6 when passing a ajax call such as \<%= > link\_to\_remote %\> it used to be as simple as passing :type =\> > :synchronous in the code, but this doesn’t seem to work anymore, and I rails 1.6? I think you must be imagining things. A ajax request can certainly be asynchronous or synchronous, but that’s got nothing to do with what you’re after. Fred