diff options
Diffstat (limited to 'railties/guides/source')
| -rw-r--r-- | railties/guides/source/active_support_core_extensions.textile | 28 | ||||
| -rw-r--r-- | railties/guides/source/i18n.textile | 2 |
2 files changed, 28 insertions, 2 deletions
diff --git a/railties/guides/source/active_support_core_extensions.textile b/railties/guides/source/active_support_core_extensions.textile index e1fa374aca..df863935cf 100644 --- a/railties/guides/source/active_support_core_extensions.textile +++ b/railties/guides/source/active_support_core_extensions.textile @@ -452,6 +452,30 @@ Examples of +in?+: NOTE: Defined in +active_support/core_ext/object/inclusion.rb+. +h4. +public_send+ + +This method is available by default in Ruby 1.9, and is backported to Ruby 1.8 by Active Support. Like the regular +send+ method, +public_send+ allows you to call a method when the name is not known until runtime. However, if the method is not public then a +NoMethodError+ exception will be raised. + +<ruby> +class Greeter + def hello(who) + "Hello " + who + end + + private + + def secret + "sauce" + end +end + +greeter = Greeter.new +greeter.public_send(:hello, 'Jim') # => "Hello Jim" +greeter.public_send(:secret) # => NoMethodError +</ruby> + +NOTE: Defined in +active_support/core_ext/object/public_send.rb+. + h3. Extensions to +Module+ h4. +alias_method_chain+ @@ -864,7 +888,9 @@ end It is shorter, and the intention more obvious. -The macro accepts several methods: +The method must be public in the target. + +The +delegate+ macro accepts several methods: <ruby> delegate :name, :age, :address, :twitter, :to => :profile diff --git a/railties/guides/source/i18n.textile b/railties/guides/source/i18n.textile index 0c8e4e974d..5a6343472c 100644 --- a/railties/guides/source/i18n.textile +++ b/railties/guides/source/i18n.textile @@ -1,4 +1,4 @@ -lh2. Rails Internationalization (I18n) API +h2. Rails Internationalization (I18n) API The Ruby I18n (shorthand for _internationalization_) gem which is shipped with Ruby on Rails (starting from Rails 2.2) provides an easy-to-use and extensible framework for *translating your application to a single custom language* other than English or for *providing multi-language support* in your application. |