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author | David Heinemeier Hansson <david@loudthinking.com> | 2007-07-24 14:17:09 +0000 |
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committer | David Heinemeier Hansson <david@loudthinking.com> | 2007-07-24 14:17:09 +0000 |
commit | 34b081112536e382845e8dee146d884b4af20c4a (patch) | |
tree | 85034eedb8b13c44557afc0fd62f6930894f0de6 /activesupport/lib/active_support | |
parent | 7de537dbf4cf99e2d85854fd6331a30604064656 (diff) | |
download | rails-34b081112536e382845e8dee146d884b4af20c4a.tar.gz rails-34b081112536e382845e8dee146d884b4af20c4a.tar.bz2 rails-34b081112536e382845e8dee146d884b4af20c4a.zip |
Added Array#extract_options! to encapsulate the pattern of getting an options hash out of a variable number of parameters (closes #8759) [norbert]
git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@7217 5ecf4fe2-1ee6-0310-87b1-e25e094e27de
Diffstat (limited to 'activesupport/lib/active_support')
-rw-r--r-- | activesupport/lib/active_support/core_ext/array.rb | 2 | ||||
-rw-r--r-- | activesupport/lib/active_support/core_ext/array/extract_options.rb | 19 |
2 files changed, 21 insertions, 0 deletions
diff --git a/activesupport/lib/active_support/core_ext/array.rb b/activesupport/lib/active_support/core_ext/array.rb index d47b988255..11003e2c0b 100644 --- a/activesupport/lib/active_support/core_ext/array.rb +++ b/activesupport/lib/active_support/core_ext/array.rb @@ -1,7 +1,9 @@ require File.dirname(__FILE__) + '/array/conversions' require File.dirname(__FILE__) + '/array/grouping' +require File.dirname(__FILE__) + '/array/extract_options' class Array #:nodoc: include ActiveSupport::CoreExtensions::Array::Conversions include ActiveSupport::CoreExtensions::Array::Grouping + include ActiveSupport::CoreExtensions::Array::ExtractOptions end diff --git a/activesupport/lib/active_support/core_ext/array/extract_options.rb b/activesupport/lib/active_support/core_ext/array/extract_options.rb new file mode 100644 index 0000000000..980d36400b --- /dev/null +++ b/activesupport/lib/active_support/core_ext/array/extract_options.rb @@ -0,0 +1,19 @@ +module ActiveSupport #:nodoc: + module CoreExtensions #:nodoc: + module Array #:nodoc: + module ExtractOptions + # Extract options from a set of arguments. Removes and returns the last element in the array if it's a hash, otherwise returns a blank hash. + # + # def options(*args) + # args.extract_options! + # end + # + # options(1, 2) # => {} + # options(1, 2, :a => :b) # => {:a=>:b} + def extract_options! + last.is_a?(::Hash) ? pop : {} + end + end + end + end +end |