Rails - Sep 2007 - form_remote_tag not providing params in Ajax

I''m new to Ruby, Rails and Ajax and I''m trying to do something
seemingly simple.  I am trying to use a value someone supplies in a
form in another form that is dynamically generated using Ajax.

I have the following code:

<div id="race_table">
&nbsp;
</div>

<%= form_remote_tag(:update => "race_table", :url => {
:action =>
"update_races" }) %>
<table>
<tr>
  <td>Ruleset:</td>
  <td><%= select(:post, :ruleset, @rulesets) %></td>
</tr>
<tr>
  <td colspan="2"><%= submit_tag "Find Races"
%></td>
</tr>
</table>
<%= end_form_tag %>

Which has been changed umpteen times, but this is how it stands now
and I''m thinking it should be accurate.  @rulesets contains an array
of arrays such that it prints something like <option
value="1">Ruleset
#1</option>

Then I have the update_races action of the same module.  It does
several things but most notably (and stripped down at the moment it
does)

@ruleset = params[:ruleset] || 11
render :layout => false

Then I have the update_races.rhtml file which does lots of things but
ultimately does:

<%= @ruleset %>

And ruleset is ALWAYS 11.  For some reason params[:ruleset] is always
nil.  My browser is Firefox 2.0.0.6

Please help :)


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Try params[:post][:ruleset]

If you use select then the first parameter is the object that is being
worked with and the second parameter is the attribute/method being
addressed.

What I would suggest you do is put this line of code in your controller
action

logger.info params.inspect

This will write the contents of params to your development log. Go check it
out - then you can see how params is structured. You will see that params in
a hash, and  in params is a "post" => {}. The hash that the
"post" key is
pointing to will contain the ruleset symbol. so you should see {"post"
=>
{:ruleset => 5}, other params go here}

cheers
Ivor

On 9/10/07, Chris <cpeters.email-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
>
>
> I''m new to Ruby, Rails and Ajax and I''m trying to do
something
> seemingly simple.  I am trying to use a value someone supplies in a
> form in another form that is dynamically generated using Ajax.
>
> I have the following code:
>
> <div id="race_table">
> &nbsp;
> </div>
>
> <%= form_remote_tag(:update => "race_table", :url => {
:action =>
> "update_races" }) %>
> <table>
> <tr>
>   <td>Ruleset:</td>
>   <td><%= select(:post, :ruleset, @rulesets) %></td>
> </tr>
> <tr>
>   <td colspan="2"><%= submit_tag "Find Races"
%></td>
> </tr>
> </table>
> <%= end_form_tag %>
>
> Which has been changed umpteen times, but this is how it stands now
> and I''m thinking it should be accurate.  @rulesets contains an
array
> of arrays such that it prints something like <option
value="1">Ruleset
> #1</option>
>
> Then I have the update_races action of the same module.  It does
> several things but most notably (and stripped down at the moment it
> does)
>
> @ruleset = params[:ruleset] || 11
> render :layout => false
>
> Then I have the update_races.rhtml file which does lots of things but
> ultimately does:
>
> <%= @ruleset %>
>
> And ruleset is ALWAYS 11.  For some reason params[:ruleset] is always
> nil.  My browser is Firefox 2.0.0.6
>
> Please help :)
>
>
> >
>
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Thanks so much!  Not only did that solve my problem but teaching me
about the logger will help me immensely to troubleshoot future
problems :)

Chris

On Sep 10, 1:04 am, "Ivor Paul"
<ivorp...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> Try params[:post][:ruleset]
>
> If you use select then the first parameter is the object that is being
> worked with and the second parameter is the attribute/method being
> addressed.
>
> What I would suggest you do is put this line of code in your controller
> action
>
> logger.info params.inspect
>
> This will write the contents of params to your development log. Go check it
> out - then you can see how params is structured. You will see that params
in
> a hash, and  in params is a "post" => {}. The hash that the
"post" key is
> pointing to will contain the ruleset symbol. so you should see
{"post" =>
> {:ruleset => 5}, other params go here}
>
> cheers
> Ivor
>
> On 9/10/07, Chris
<cpeters.em...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>
>
>
> > I''m new to Ruby, Rails and Ajax and I''m trying to do
something
> > seemingly simple.  I am trying to use a value someone supplies in a
> > form in another form that is dynamically generated using Ajax.
>
> > I have the following code:
>
> > <div id="race_table">
> > &nbsp;
> > </div>
>
> > <%= form_remote_tag(:update => "race_table", :url
=> { :action =>
> > "update_races" }) %>
> > <table>
> > <tr>
> >   <td>Ruleset:</td>
> >   <td><%= select(:post, :ruleset, @rulesets) %></td>
> > </tr>
> > <tr>
> >   <td colspan="2"><%= submit_tag "Find
Races" %></td>
> > </tr>
> > </table>
> > <%= end_form_tag %>
>
> > Which has been changed umpteen times, but this is how it stands now
> > and I''m thinking it should be accurate.  @rulesets contains
an array
> > of arrays such that it prints something like <option
value="1">Ruleset
> > #1</option>
>
> > Then I have the update_races action of the same module.  It does
> > several things but most notably (and stripped down at the moment it
> > does)
>
> > @ruleset = params[:ruleset] || 11
> > render :layout => false
>
> > Then I have the update_races.rhtml file which does lots of things but
> > ultimately does:
>
> > <%= @ruleset %>
>
> > And ruleset is ALWAYS 11.  For some reason params[:ruleset] is always
> > nil.  My browser is Firefox 2.0.0.6
>
> > Please help :)

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