How to access the object bound to form in partial?

rubyonrails-talk
1

Hi,

In a partial, how do I access the ActiveRecord object that's bound to a form?

<%= f.text_field :name %> <% if f.(something).new_record? %> ... <% end %>

I want to know if the object is new record or not. I can pass the object itself using :locals, but I want to make it DRY.

Thanks.

Sam

2

Use if @foo.new_record?

f.something won't respond to new_record?

3

Hi Greg,

Greg Donald wrote:

In a partial, how do I access the ActiveRecord object that's bound to a form?

<%= f.text_field :name %> <% if f.(something).new_record? %>

Use if @foo.new_record?

Yes, I know that. However, I am not sure if I can assume that the partial knows @foo. As partial views are supposed to be shared among controllers, I want to minimize the coupling of partial and controller.

I am not sure, though.

Thanks.

Sam

4

Then don't assume, test for it.

if @foo && @foo.new_record?

5

f.object if my memory serves me correctly.

Fred

6

Hi Frederick,

Frederick Cheung wrote: