get value of select whch change using ajax after form submit

[Salil Gaikwad]

Hi All,
I have a problem while updating select list using ajax and then submit
it.
what i have done is to change the drop down of a city when i changed
the state.but when i am submitting the form i am not able to get the
value of city.
Following is my code for the same.

edit.html.erb
<% form_for :user_info , :url=>{:controller=>"users",
:action=>"update_contact_details",:id=>params[:id] } do |f| %>

<% @state= UsaCity.find_by_sql('select DISTINCT state from
usa_cities') %>
<tr>

<td >State</td>

<td> <%= select_tag 'user_info[state]',
options_from_collection_for_select(@state, :state, :state,
@user_info.state) %><div id="user_sate_loading"
style="display:none"><img src="/images/loading.gif"></div>
<br><span id="stateError" class="error"></span>
<%= observe_field :user_info_state, :url
=>{:controller=>"logins",:action =>'select_city', :id=>'1'}, :update=>
'city' , :with => "'
state='+document.getElementById('user_info_state').value+'&type=contact_details'",
:on=>'click' %>

</td>

</tr>
<tr id="city">

<td >City</td>

<td><%= collection_select :user_info, :city, @cities ||
Array.new, :city, :city, :prompt=>true %><br><span id="cityError"
class="error"></span></td>

</tr>

<% end %>

controller method
def edit_city
@cities = UsaCity.find(:all, :conditions=>["state=?",
params[:state]])
@type = params[:type]
render :update do |page|
page.replace_html 'city', :partial => 'logins/select_city',
:object=>[@cities, @type], :layout => false
end
end

_select_city.html.erb

<td>City1345</td>
<td><%= collection_select :user_info, :city, @cities || Array.new,
:city, :city, :prompt=>true %><br><span id="cityError"
class="error"></span></td>

Regards,
Salil Gaikwad
--
Posted via http://www.ruby-forum.com/.

[Salil Gaikwad]

Hi All,

Sorry for this but it's not working properly because i use form_for tag
inside the <table> tag.
i only remove form from inside the table and keep outside the table tag
and now everything is works like a magic. I hope this will help someone
to save his/her 1 hr or 2.