Added Array#to_s(:db) that'll produce a comma-separated list of ids [DHH] Split Grouping into its own file

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@4387 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

1 files changed, 2 insertions, 39 deletions

diff --git a/activesupport/lib/active_support/core_ext/array.rb b/activesupport/lib/active_support/core_ext/array.rb
index 243aeab423..d47b988255 100644
--- a/activesupport/lib/active_support/core_ext/array.rb
+++ b/activesupport/lib/active_support/core_ext/array.rb
@@ -1,44 +1,7 @@
 require File.dirname(__FILE__) + '/array/conversions'
+require File.dirname(__FILE__) + '/array/grouping'
 
 class Array #:nodoc:
   include ActiveSupport::CoreExtensions::Array::Conversions
-
-  # Iterate over an array in groups of a certain size, padding any remaining 
-  # slots with specified value (<tt>nil</tt> by default).
-  # 
-  # E.g.
-  # 
-  #   %w(1 2 3 4 5 6 7).in_groups_of(3) {|g| p g}
-  #   ["1", "2", "3"]
-  #   ["4", "5", "6"]
-  #   ["7", nil, nil]
-  def in_groups_of(number, fill_with = nil, &block)
-    require 'enumerator'
-    collection = dup
-    collection << fill_with until collection.size.modulo(number).zero?
-    grouped_collection = [] unless block_given?
-    collection.each_slice(number) do |group|
-      block_given? ? yield(group) : grouped_collection << group
-    end
-    grouped_collection unless block_given?
-  end
-  
-  # Divide the array into one or more subarrays based on a delimiting +value+
-  # or the result of an optional block.
-  #
-  # ex.
-  #
-  #   [1, 2, 3, 4, 5].split(3)                # => [[1, 2], [4, 5]]
-  #   (1..10).to_a.split { |i| i % 3 == 0 }   # => [[1, 2], [4, 5], [7, 8], [10]]
-  def split(value = nil, &block)
-    block ||= Proc.new { |e| e == value }
-    inject([[]]) do |results, element|
-      if block.call(element)
-        results << []
-      else
-        results.last << element
-      end
-      results
-    end
-  end
+  include ActiveSupport::CoreExtensions::Array::Grouping
 end