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author | Joshua Peek <josh@joshpeek.com> | 2009-05-29 16:06:21 -0500 |
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committer | Joshua Peek <josh@joshpeek.com> | 2009-05-29 16:06:21 -0500 |
commit | 69742ca8fa05509f7d7c5512cb6d8e002ecb3ab3 (patch) | |
tree | 044c2131cc87d21ee54027511aae2b7f2d2ae26a /activesupport/lib/active_support/core_ext/symbol/to_proc.rb | |
parent | 5f3f100ce2d689480da85abc88e5e940cf90189e (diff) | |
parent | 5ec2c7dc29b36d85b2658465b8a979deb0529d7e (diff) | |
download | rails-69742ca8fa05509f7d7c5512cb6d8e002ecb3ab3.tar.gz rails-69742ca8fa05509f7d7c5512cb6d8e002ecb3ab3.tar.bz2 rails-69742ca8fa05509f7d7c5512cb6d8e002ecb3ab3.zip |
Merge branch 'master' into active_model
Conflicts:
activemodel/lib/active_model/core.rb
activemodel/test/cases/state_machine/event_test.rb
activemodel/test/cases/state_machine/state_transition_test.rb
activerecord/lib/active_record/validations.rb
activerecord/test/cases/validations/i18n_validation_test.rb
activeresource/lib/active_resource.rb
activeresource/test/abstract_unit.rb
Diffstat (limited to 'activesupport/lib/active_support/core_ext/symbol/to_proc.rb')
-rw-r--r-- | activesupport/lib/active_support/core_ext/symbol/to_proc.rb | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/activesupport/lib/active_support/core_ext/symbol/to_proc.rb b/activesupport/lib/active_support/core_ext/symbol/to_proc.rb new file mode 100644 index 0000000000..520369452b --- /dev/null +++ b/activesupport/lib/active_support/core_ext/symbol/to_proc.rb @@ -0,0 +1,14 @@ +class Symbol + # Turns the symbol into a simple proc, which is especially useful for enumerations. Examples: + # + # # The same as people.collect { |p| p.name } + # people.collect(&:name) + # + # # The same as people.select { |p| p.manager? }.collect { |p| p.salary } + # people.select(&:manager?).collect(&:salary) + # + # This is a builtin method in Ruby 1.8.7 and later. + def to_proc + Proc.new { |*args| args.shift.__send__(self, *args) } + end unless :to_proc.respond_to?(:to_proc) +end |