diff options
| -rw-r--r-- | activesupport/CHANGELOG.md | 12 | ||||
| -rw-r--r-- | activesupport/lib/active_support/core_ext/object/inclusion.rb | 12 | ||||
| -rw-r--r-- | activesupport/test/core_ext/object/inclusion_test.rb | 5 | ||||
| -rw-r--r-- | guides/source/upgrading_ruby_on_rails.md | 7 |
4 files changed, 32 insertions, 4 deletions
diff --git a/activesupport/CHANGELOG.md b/activesupport/CHANGELOG.md index f25172c15c..713bb3c1e2 100644 --- a/activesupport/CHANGELOG.md +++ b/activesupport/CHANGELOG.md @@ -1,3 +1,15 @@ +* Added `Object#present_in` to simplify value whitelisting. + + Before: + + params[:bucket_type].in?(%w( project calendar )) ? params[:bucket_type] : nil + + After: + + params[:bucket_type].present_in %w( project calendar ) + + *DHH* + * Time helpers honor the application time zone when passed a date. *Xavier Noria* diff --git a/activesupport/lib/active_support/core_ext/object/inclusion.rb b/activesupport/lib/active_support/core_ext/object/inclusion.rb index b5671f66d0..141f19e7b3 100644 --- a/activesupport/lib/active_support/core_ext/object/inclusion.rb +++ b/activesupport/lib/active_support/core_ext/object/inclusion.rb @@ -12,4 +12,16 @@ class Object rescue NoMethodError raise ArgumentError.new("The parameter passed to #in? must respond to #include?") end + + # Returns the receiver if it's included in the argument otherwise returns +nil+. + # Argument must be any object which responds to +#include?+. Usage: + # + # params[:bucket_type].present_in %w( project calendar ) + # + # This will throw an ArgumentError if the argument doesn't respond to +#include?+. + # + # @return [Object] + def present_in(another_object) + self.in?(another_object) ? self : nil + end end diff --git a/activesupport/test/core_ext/object/inclusion_test.rb b/activesupport/test/core_ext/object/inclusion_test.rb index 478706eeae..c5e2cc693a 100644 --- a/activesupport/test/core_ext/object/inclusion_test.rb +++ b/activesupport/test/core_ext/object/inclusion_test.rb @@ -47,4 +47,9 @@ class InTest < ActiveSupport::TestCase def test_no_method_catching assert_raise(ArgumentError) { 1.in?(1) } end + + def test_present_in + assert_equal "stuff", "stuff".present_in(%w( lots of stuff )) + assert_nil "stuff".present_in(%w( lots of crap )) + end end diff --git a/guides/source/upgrading_ruby_on_rails.md b/guides/source/upgrading_ruby_on_rails.md index 8aae3bbc1a..f28f6dc576 100644 --- a/guides/source/upgrading_ruby_on_rails.md +++ b/guides/source/upgrading_ruby_on_rails.md @@ -567,9 +567,8 @@ Active Record Observer and Action Controller Sweeper have been extracted to the ### sprockets-rails -* `assets:precompile:primary` has been removed. Use `assets:precompile` instead. -* The `config.assets.compress` option should be changed to -`config.assets.js_compressor` like so for instance: +* `assets:precompile:primary` and `assets:precompile:all` have been removed. Use `assets:precompile` instead. +* The `config.assets.compress` option should be changed to `config.assets.js_compressor` like so for instance: ```ruby config.assets.js_compressor = :uglifier @@ -577,7 +576,7 @@ config.assets.js_compressor = :uglifier ### sass-rails -* `asset-url` with two arguments is deprecated. For example: `asset-url("rails.png", image)` becomes `asset-url("rails.png")` +* `asset-url` with two arguments is deprecated. For example: `asset-url("rails.png", image)` becomes `asset-url("rails.png")`. Upgrading from Rails 3.1 to Rails 3.2 ------------------------------------- |