Form_remote_tag not providing params in Ajax

Rails
1

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:

 

<%= form_remote_tag(:update => “race_table”, :url => { :action =>
“update_races” }) %>

Ruleset: <%= select(:post, :ruleset, @rulesets) %>
<%= submit_tag "Find Races" %>
<%= 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 Ruleset
#1

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 :slight_smile:

2

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

3

Thanks so much! Not only did that solve my problem but teaching me
about the logger will help me immensely to troubleshoot future
problems :slight_smile:

Chris