From: Erwin <yves_dufour@...>
Date: 2008-08-15T02:27:20+09:00
Subject: Re: nested loop

On 14 août, 19:24, Erwin <yves_duf...@mac.com> wrote:
> I know there is DRY way tow rite that, but I don't remember how
>
> residence_rentals_ids = []
> residences = user.franchise.residences
>  for residence in residences
>      residence_rentals_ids = residence.rentals.map {|rental|
> rental[:id] }.compact
> end
>
> I tried unsuccessfully :
>
> residence_rentals_ids = user.franchise.residences.each { |residence|
> residence.rentals.map { |rental| rental[:id}.compact   }
>
> thanks for your lights
>
> erwin

got it  :
residence_rentals_ids = []
user.franchise.residences.each { |residence| residence.rentals.map { |
rental| residence_rentals_ids << rental[:id] }.compact   }

but is there a way to avoid the residence_rentals_ids = []  line,
including the array initialization into a block ?