OK, here's an example of what I'm trying to do.
_form.html.erb
<%= form.error_messages %>
<p>
<%= form.label :title %><br />
<%= form.text_field :title %>
</p>
<p>
<%= form.label :due_date %><br />
<%= form.datetime_select :due_date %>
</p>
<div id="tasks">
<h3>Tasks</h3>
<% form.fields_for :tasks do |task_form| -%>
<%= render :partial => 'task', :locals => { :form => task_form }
%>
<% end -%>
</div>
<%= add_task_link(form) %>
<p>
<%= form.submit 'Save' %>
</p>
And here's the partial that gets called above (_task.html.erb)
<div class="task">
<p>
<%= form.label :name %>
<%= form.text_field :name, :size => 15 %>
<%= remove_task_link( form ) %>
</p>
<%= observe_field :project_tasks_attributes_0_name, :function =>
'alert("field changed")' %>
</div>
This doesn't work because I need to change the observe_field name
(:project_tasks_attributes_0_name) for each task. If I had 3 tasks,
the
then the observe_field names would be:
:project_tasks_attributes_0_name
:project_tasks_attributes_1_name
:project_tasks_attributes_2_name
I was wondering if there is a way to access the index of the task form
loop to generate field names like the above.
Thanks,
Jay
On Aug 17, 9:35 pm, bill walton <[email protected]> wrote:
> Hi Jay,
>
> On Mon, 2009-08-17 at 14:24 -0700, Jay wrote:
> > I'm trying to observe a field that get generated inside a fields_for
> > loop (I'm trying to create the form dynamically depending on a
> > selection value). Is there a way to access the index in the field_for
> > loop?
>
> What do you mean by 'index'? The observe_field method takes a DOM id.
> If you're having trouble, post the view and the page source that
> results. It's very difficult to help with such sparse information.
>
> Best regards,
> Bill
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