On Nov 15, 2012, at 1:15 AM, Soichi Ishida wrote:
> Rails 3.1.3
>
> Is it possible to split form_for block into two parts?
>
> More specifically, I want to create and save a model after filling
> required fields.
> But some of the fields are not required and unnecessary for the model.
>
> <%= form_for(@foo) do |f| %>
> f.field A
> <% end %>
>
> and form_tag updates the following select fields in form_for block with
> JavaScript
>
> <%= form_tag do %>
> ...
> <% end %>
>
> <%= form_for(@foo) do |f| %>
> f.field B
> <% end %>
>
> Apparently if I hit the save button, it needs to save both field A and
> B.
Are you sure they need to be two separate forms? If your view pseudocode is
accurate, these would both post to the same controller method. You can simply
hide the non-essential fields with JavaScript, and show them conditionally. If
the field is submitted empty, that would not change your model, right? Likewise
if there's a default value, that would also be present in the view, just not
shown to the visitor.
<button id="show_options">Show Options</button>
f.field A
f.field B, :class => 'optional'
<script type="text/javascript">
var hidden_fields = $$('.optional').invoke('hide');
$('show_options').observe('click',
function(evt){
hidden_fields.invoke('toggle');
}
);
</script>
Walter
>
> Thanks in advance.
>
> soichi
>
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