Sha256: ad825aa4a147e04742341594416ddd5b3eb15a68bffbea6881544777413ae547

Contents?: true

Size: 795 Bytes

Versions: 55

Compression:

Stored size: 795 Bytes

Contents

# encoding: utf-8
module Mongoid #:nodoc:
  module Collections #:nodoc:
    class CyclicIterator

      attr_reader :counter

      # Performs iteration over an array, if the array gets to the end then loop
      # back to the first.
      #
      # Example:
      #
      # <tt>CyclicIterator.new([ first, second ])</tt>
      def initialize(array)
        @array, @counter = array, -1
      end

      # Get the next element in the array. If the element is the last in the
      # array then return the first.
      #
      # Example:
      #
      # <tt>iterator.next</tt>
      #
      # Returns:
      #
      # The next element in the array.
      def next
        (@counter == @array.size - 1) ? @counter = 0 : @counter = @counter + 1
        @array[@counter]
      end
    end
  end
end

Version data entries

55 entries across 55 versions & 8 rubygems

Version Path
mongoid-2.0.2 lib/mongoid/collections/cyclic_iterator.rb
mongoid-2.0.1 lib/mongoid/collections/cyclic_iterator.rb
mongoid-2.0.0 lib/mongoid/collections/cyclic_iterator.rb
mongoid-2.0.0.rc.8 lib/mongoid/collections/cyclic_iterator.rb
mongoid-1.9.5 lib/mongoid/collections/cyclic_iterator.rb
mongoid-2.0.0.rc.7 lib/mongoid/collections/cyclic_iterator.rb
stonegao-mongoid-2.0.0.rc.6 lib/mongoid/collections/cyclic_iterator.rb
mongoid-2.0.0.rc.6 lib/mongoid/collections/cyclic_iterator.rb
mongoid-2.0.0.rc.5 lib/mongoid/collections/cyclic_iterator.rb
mongoid-2.0.0.rc.4 lib/mongoid/collections/cyclic_iterator.rb
mongoid-2.0.0.rc.3 lib/mongoid/collections/cyclic_iterator.rb
mongoid-2.0.0.rc.2 lib/mongoid/collections/cyclic_iterator.rb
mongoid-2.0.0.rc.1 lib/mongoid/collections/cyclic_iterator.rb
mongoid-with-auth-1.9.4 lib/mongoid/collections/cyclic_iterator.rb
mongoid-rails2-1.9.4 lib/mongoid/collections/cyclic_iterator.rb
mongoid-rails2-1.9.3 lib/mongoid/collections/cyclic_iterator.rb
mongoid-2.0.0.beta.20 lib/mongoid/collections/cyclic_iterator.rb
mongoid-2.0.0.beta.19 lib/mongoid/collections/cyclic_iterator.rb
mongoid-1.9.2 lib/mongoid/collections/cyclic_iterator.rb
sskirby-mongoid-1.9.1 lib/mongoid/collections/cyclic_iterator.rb