I think you can also combine multiple conditions with an array of methods
to be called:
*with_options if: [:something?, :something_else?] do*
*...*
*end*
It's a bit simpler/cleaner than the block form, but I don't think that
works in a nested way as you are imagining (and I think it might be better
to just keep it as is).
Hope that helps.
On Fri, Dec 5, 2014 at 5:02 PM, Griffin Smith <wildgriffi...@gmail.com>
wrote:
> I feel like one of the more common use cases for with_options is an :if or
> an :unless argument to validates, like so:
>
> with_options if: :something? do
> validates :thing, presence: true
> validates :other_thing, numericality: { greater_than: 7 }
> end
>
> This breaks down when trying to nest multiple with_options blocks, because
> the second :if overrides the first when calling Hash#merge. It would be
> nice if I could do:
>
> with_options if: :something? do
> validates :thing, presence: true
> validates :other_thing, presence: true
>
> with_options if: :something_else? do
> validates :third_thing, presence: true # only runs if something? &&
> something_else?
> end
> end
>
> Currently to get this to behave as expected I have to do:
>
> with_options if: :something? do
> validates :thing, presence: true
> validates :other_thing, presence: true
> end
>
> with_options if: -> { something? && something_else? } do
> validates :third_thing, presence: true # only runs if something? &&
> something_else?
> end
>
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--
At.
Carlos Antonio
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