Rails 2.3.11

[redminele/redminele.git] / ruby / lib / ruby / gems / 1.8 / gems / activesupport-2.3.5 / lib / active_support / core_ext / enumerable.rb

diff --git a/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/core_ext/enumerable.rb b/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/core_ext/enumerable.rb
deleted file mode 100644 (file)
index 2c5f59b..0000000
--- a/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/core_ext/enumerable.rb
+++ /dev/null
@@ -1,114 +0,0 @@
-require 'active_support/ordered_hash'
-
-module Enumerable
-  # Ruby 1.8.7 introduces group_by, but the result isn't ordered. Override it.
-  remove_method(:group_by) if [].respond_to?(:group_by) && RUBY_VERSION < '1.9'
-
-  # Collect an enumerable into sets, grouped by the result of a block. Useful,
-  # for example, for grouping records by date.
-  #
-  # Example:
-  #
-  #   latest_transcripts.group_by(&:day).each do |day, transcripts| 
-  #     p "#{day} -> #{transcripts.map(&:class).join(', ')}"
-  #   end
-  #   "2006-03-01 -> Transcript"
-  #   "2006-02-28 -> Transcript"
-  #   "2006-02-27 -> Transcript, Transcript"
-  #   "2006-02-26 -> Transcript, Transcript"
-  #   "2006-02-25 -> Transcript"
-  #   "2006-02-24 -> Transcript, Transcript"
-  #   "2006-02-23 -> Transcript"
-  def group_by
-    assoc = ActiveSupport::OrderedHash.new
-
-    each do |element|
-      key = yield(element)
-
-      if assoc.has_key?(key)
-        assoc[key] << element
-      else
-        assoc[key] = [element]
-      end
-    end
-
-    assoc
-  end unless [].respond_to?(:group_by)
-
-  # Calculates a sum from the elements. Examples:
-  #
-  #  payments.sum { |p| p.price * p.tax_rate }
-  #  payments.sum(&:price)
-  #
-  # The latter is a shortcut for:
-  #
-  #  payments.inject { |sum, p| sum + p.price }
-  #
-  # It can also calculate the sum without the use of a block.
-  #
-  #  [5, 15, 10].sum # => 30
-  #  ["foo", "bar"].sum # => "foobar"
-  #  [[1, 2], [3, 1, 5]].sum => [1, 2, 3, 1, 5]
-  #
-  # The default sum of an empty list is zero. You can override this default:
-  #
-  #  [].sum(Payment.new(0)) { |i| i.amount } # => Payment.new(0)
-  #
-  def sum(identity = 0, &block)
-    if block_given?
-      map(&block).sum(identity)
-    else
-      inject { |sum, element| sum + element } || identity
-    end
-  end
-
-  # Iterates over a collection, passing the current element *and* the
-  # +memo+ to the block. Handy for building up hashes or
-  # reducing collections down to one object. Examples:
-  #
-  #   %w(foo bar).each_with_object({}) { |str, hsh| hsh[str] = str.upcase } #=> {'foo' => 'FOO', 'bar' => 'BAR'}
-  #
-  # *Note* that you can't use immutable objects like numbers, true or false as
-  # the memo. You would think the following returns 120, but since the memo is
-  # never changed, it does not.
-  #
-  #   (1..5).each_with_object(1) { |value, memo| memo *= value } # => 1
-  #
-  def each_with_object(memo, &block)
-    returning memo do |m|
-      each do |element|
-        block.call(element, m)
-      end
-    end
-  end unless [].respond_to?(:each_with_object)
-
-  # Convert an enumerable to a hash. Examples:
-  #
-  #   people.index_by(&:login)
-  #     => { "nextangle" => <Person ...>, "chade-" => <Person ...>, ...}
-  #   people.index_by { |person| "#{person.first_name} #{person.last_name}" }
-  #     => { "Chade- Fowlersburg-e" => <Person ...>, "David Heinemeier Hansson" => <Person ...>, ...}
-  # 
-  def index_by
-    inject({}) do |accum, elem|
-      accum[yield(elem)] = elem
-      accum
-    end
-  end
-  
-  # Returns true if the collection has more than 1 element. Functionally equivalent to collection.size > 1.
-  # Works with a block too ala any?, so people.many? { |p| p.age > 26 } # => returns true if more than 1 person is over 26.
-  def many?(&block)
-    size = block_given? ? select(&block).size : self.size
-    size > 1
-  end
-
-  # Returns true if none of the elements match the given block.
-  #
-  #   success = responses.none? {|r| r.status / 100 == 5 }
-  #
-  # This is a builtin method in Ruby 1.8.7 and later.
-  def none?(&block)
-    !any?(&block)
-  end unless [].respond_to?(:none?)
-end