CODEWITHSUNDEEP
ruby-on-railsruby-on-rails-3.2
ctilley79
ctilley79

Reputation: 2195

Rails 3.2 Determine last element in each block

Given the following code, is there a way to test whether the iteration is on the last record? I have given a little pseudocode on the line I would like to test.

@shipments.each do |shipment|
  puts shipment.id
  puts shipment.desc

  unless shipment.last?  #is there a way to do this line?
    puts "that was the last shipment"
  end
end

Upvotes: 0

Views: 306

Answers (2)

pjam
pjam

Reputation: 6356

By using the #last method you could do something like that, but I believe there should be a better way to achieve this

@shipments.each do |shipment|
  puts shipment.id
  puts shipment.desc

  unless shipment == @shipments.last  #is there a way to do this line?
    puts "that was the last shipment"
  end
end

Upvotes: 1

Dylan Markow
Dylan Markow

Reputation: 124419

There is no built-in method, but the closest to this would probably be something like:

unless shipment == @shipments.last

This assumes you're working with a set of ActiveRecord results, because if @shipments was an array such as [1, 2, 3, 2], 2 would match the second element as well as the last.

Upvotes: 1

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