Ruby on Rails

On 29 August 2012 16:13, Walter Lee Davis <waltd@wdstudio.com> wrote:
> I have a model that includes a :current boolean. The idea is that there are many home pages that the admin is working on at any given time, but only one is current at a time. At the moment, I have enforced this with the following:
>
> before_save :toggle_current
>
> def toggle_current
> if current?
> Home.where(["current = ? & id != ?", true, self.id]).each do |home|
> home.update_attribute(:current, false)
> end
> end
> end

you could use "update_all" rather than iterate a collection, which
would only fire one SQL query.

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