@@ -73,6 +73,7 @@ class Object end # Tries to send the method only if object responds to it. Return +nil+ otherwise. + # It will also forward any arguments and/or block like Object#send does. # # ==== Example : # @@ -81,7 +82,11 @@ class Object # # With try # @person.try(:name) - def try(method) - send(method) if respond_to?(method, true) + # + # # try also accepts arguments/blocks for the method it is trying + # Person.try(:find, 1) + # @people.try(:map) {|p| p.name} + def try(method, *args, &block) + send(method, *args, &block) if respond_to?(method, true) end end activesupport/lib/active_support/core_ext/object/misc.rb @@ -271,4 +271,11 @@ class ObjectTryTest < Test::Unit::TestCase assert_equal 5, @string.try(:size) end + def test_argument_forwarding + assert_equal 'Hey', @string.try(:sub, 'llo', 'y') + end + + def test_block_forwarding + assert_equal 'Hey', @string.try(:sub, 'llo') { |match| 'y' } + end end activesupport/test/core_ext/object_and_class_ext_test.rb fffb1da3f22852c722dbc4436ec7c924435d29a5 Eloy Duran alloy eloy.de.enige@gmail.com http://github.com/rails/rails/commit/823b623fe2de8846c37aa13250010809ac940b57 823b623fe2de8846c37aa13250010809ac940b57 2008-11-24T09:53:48-08:00 2008-11-21T00:47:55-08:00 Allow optional arguments and/or block for Object#try like Object#send does. [#1425 state:resolved] Original suggestion by Pat Nakajima. Signed-off-by: Pratik Naik <pratiknaik@gmail.com> 7bf0e7e557bdedb57226cd35fef12f7e9fbbea4b Pratik Naik lifo pratiknaik@gmail.com