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Size: 783 Bytes
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Contents
# http://github.com/rails/rails/tree/823b623fe2de8846c37aa13250010809ac940b57/activesupport/lib/active_support/core_ext/object/misc.rb
unless Object.respond_to?(:try) # Object#try is in Rails 2.3 but not in 2.2.
class Object
# 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 :
#
# # Without try
# @person ? @person.name : nil
#
# With try
# @person.try(:name)
#
# # 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
end
Version data entries
16 entries across 16 versions & 2 rubygems