Ruby on Rails

On Apr 28, 8:09 pm, oren <orengo...@gmail.com> wrote:
> my models: content has_many keys
> I don't understand how is it possible that empty array will have
> 'build' method?

Because it's not actually an array - it's an association proxy.

Fred
>
> @content = Content.create(:text => 'test')
>  => #<Content id: 3, text: "test", created_at: "2010-04-28 19:04:19",
> updated_at: "2010-04-28 19:04:19">
>
> @content.keys
> => []
>
> but this works. can someone explain how can it be?
> @content.keys.build
>  => #<Key id: nil, name: nil, content_id: 3, created_at: nil,
> updated_at: nil>
>
> Thanks
>
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