Rails map_with_index?

Question

I have the following:

    :participants => item.item_participations.map { |item|
      {:item_image => item.user.profile_pic.url(:small)}
    }

I want this to happen no more than 3 times inside. I tried map_with_index but that did not work.

Any suggestions on how I can break after a max of 3 runs in the loop?

Answer 1

As of Ruby 1.9, you can use map.with_index:

:participants => item.item_participations.map.with_index { |item, idx|
  {:item_image => item.user.profile_pic.url(:small)}
  break if i == 2  
}

Although I kind of prefer the method proposed by Justice.