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Wes Gamble

2007-Jan-17 18:06 UTC

AJAX select: How to send the selected value to AJAX action?

All,

I want to have a select box which sends it''s selected value to my
action
onChange.

Here''s what I have so far (there is no form):

<%= select(:preferences, :job_history_filter_period,
ContactPreference::JOB_HISTORY_OPTIONS, {},
:onChange => remote_function(:url => {:action =>
:modify_history_time_period})) %>

What is the correct way to get the selected value of the list box into
the request?

I assume that I have to modify the :parameters option of the Ajax
request, but not sure how to do that with the helper.

Thanks,
Wes

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Athanasios Kouroussis

2007-Jan-17 18:17 UTC

head link

Re: AJAX select: How to send the selected value to AJAX action?

You can do this:

<%= select(:preferences, :job_history_filter_period, 
ContactPreference::JOB_HISTORY_OPTIONS, {},
html_options = {
                :onChange => "new Ajax.Request( 
                 
''/controller_name/modify_history_time_period/'' +
this[this.selectedIndex].value, 
   {asynchronous:true, evalScripts:true});"
                 }
) %>

It''s not as clean as the helper but gets the job done.

Cheers,
Atha

Wes Gamble wrote:> 
> All,
> 
> I want to have a select box which sends it''s selected value to my
action
> onChange.
> 
> Here''s what I have so far (there is no form):
> 
> <%= select(:preferences, :job_history_filter_period,
> ContactPreference::JOB_HISTORY_OPTIONS, {},
> :onChange => remote_function(:url => {:action =>
> :modify_history_time_period})) %>
> 
> What is the correct way to get the selected value of the list box into
> the request?
> 
> I assume that I have to modify the :parameters option of the Ajax
> request, but not sure how to do that with the helper.
> 
> Thanks,
> Wes
> 
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Wes Gamble

2007-Jan-17 18:19 UTC

head link

Re: AJAX select: How to send the selected value to AJAX acti

How quickly we forget:

The solution:

<%= select(:preferences, :job_history_filter_period, 
ContactPreference::JOB_HISTORY_OPTIONS, {},
:onChange => remote_function(:url => {:action => 
:modify_history_time_period},
           :with => "''time_period='' + 
this.options[this.selectedIndex].value")) %>

I need to help with the documentation effort - there is no mention of 
the :with parameter anywhere in the API docs. for remote_function, nor 
link_to_remote.  If you look in the source for the options_for_ajax() 
function, you''ll find the use of the :with parameter.  But that seems a
little more difficult than it should be.

Thanks,
Wes

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Atha

2007-Jan-17 18:20 UTC

head link

Re: AJAX select: How to send the selected value to AJAX action?

You can do this:

<%= select(:preferences,
                  :job_history_filter_period,
                  ContactPreference::JOB_HISTORY_OPTIONS,
                  options = {},
                  html_options = {
                                         :onChange => "new
Ajax.Request(''/controller_name/modify_history_time_period/'' +
this[this.selectedIndex].value,  {asynchronous:true,
evalScripts:true});"
                                         }
                 ) %>

It''s not as clean as the helper but gets the job done.

Cheers,
Atha


On Jan 17, 3:06 pm, Wes Gamble
<rails-mailing-l...-ARtvInVfO7ksV2N9l4h3zg@public.gmane.org>
wrote:> All,
>
> I want to have a select box which sends it''s selected value to my
action
> onChange.
>
> Here''s what I have so far (there is no form):
>
> <%= select(:preferences, :job_history_filter_period,
> ContactPreference::JOB_HISTORY_OPTIONS, {},
> :onChange => remote_function(:url => {:action =>
> :modify_history_time_period})) %>
>
> What is the correct way to get the selected value of the list box into
> the request?
>
> I assume that I have to modify the :parameters option of the Ajax
> request, but not sure how to do that with the helper.
> 
> Thanks,
> Wes
> 
> --
> Posted viahttp://www.ruby-forum.com/.

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Jason Roelofs

2007-Jan-17 19:30 UTC

head link

Re: AJAX select: How to send the selected value to AJAX acti

You could also use a two-pronged approach:

<%= ... select box code :preferences, :job_history_filter_period %>

...

<%= observe_field ''preferences[job_history_filter_period], :update
=> ''some
field'', :url => {:action => :modify_history_time_period} %>

Though I do notice that you shouldn''t need the :with in the first
place. The
Rails helpers should automatically send back
params[:job_history_filter_period] through remote_function, though I may be
wrong.

Jason

On 1/17/07, Wes Gamble
<rails-mailing-list-ARtvInVfO7ksV2N9l4h3zg@public.gmane.org>
wrote:>
>
> How quickly we forget:
>
> The solution:
>
> <%= select(:preferences, :job_history_filter_period,
> ContactPreference::JOB_HISTORY_OPTIONS, {},
> :onChange => remote_function(:url => {:action =>
> :modify_history_time_period},
>            :with => "''time_period='' +
> this.options[this.selectedIndex].value")) %>
>
> I need to help with the documentation effort - there is no mention of
> the :with parameter anywhere in the API docs. for remote_function, nor
> link_to_remote.  If you look in the source for the options_for_ajax()
> function, you''ll find the use of the :with parameter.  But that
seems a
> little more difficult than it should be.
>
> Thanks,
> Wes
>
> --
> Posted via http://www.ruby-forum.com/.
>
> >
>
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Wes Gamble

2007-Jan-17 21:21 UTC

head link

Re: AJAX select: How to send the selected value to AJAX acti

Jason Roelofs wrote:> You could also use a two-pronged approach:
> 
> <%= ... select box code :preferences, :job_history_filter_period %>
> 
> ...
> 
> <%= observe_field ''preferences[job_history_filter_period],
:update =>
> ''some
> field'', :url => {:action => :modify_history_time_period}
%>
> 
> Though I do notice that you shouldn''t need the :with in the first
place.
> The
> Rails helpers should automatically send back
> params[:job_history_filter_period] through remote_function, though I may 
> be
> wrong.
> 
> Jason
Jason,

You''re right that I probably could have used an observer, but I
don''t
need to update anything on the page.  I just need to notify the server 
that something has changed.

The "automatically sending back params[:job_history_filter_period]" 
would happen if I were sending form contents back, but I''m not. 
Originally, I tried that (with a form_remote_tag around the select), but 
it wouldn''t work because you can''t use JS to submit a form. 
So I ended
up with this approach, which is the most direct, I think.

Thanks,
Wes

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Rails - Jan 2007 - AJAX select: How to send the selected value to AJAX action?

AJAX select: How to send the selected value to AJAX action?

Re: AJAX select: How to send the selected value to AJAX action?

Re: AJAX select: How to send the selected value to AJAX acti

Re: AJAX select: How to send the selected value to AJAX action?

Re: AJAX select: How to send the selected value to AJAX acti

Re: AJAX select: How to send the selected value to AJAX acti