Changeset 4653

Timestamp:

08/03/06 18:47:43 (2 years ago)

Author:

david

Message:

Added Module#alias_attribute [Jamis/DHH]

Files:

• trunk/activesupport/CHANGELOG (modified) (1 diff)
• trunk/activesupport/lib/active_support/core_ext/date/conversions.rb (modified) (1 diff)
• trunk/activesupport/lib/active_support/core_ext/module/aliasing.rb (modified) (1 diff)
• trunk/activesupport/test/core_ext/module (added)
• trunk/activesupport/test/core_ext/module_test.rb (modified) (1 diff)
• trunk/activesupport/test/core_ext/module/attribute_aliasing_test.rb (added)

trunk/activesupport/CHANGELOG

@@ -1 +1 @@
-*SVN*
+
+* Added Module#alias_attribute [Jamis/DHH]. Example:
+
+    class Content < ActiveRecord::Base
+      # has a title attribute
+    end
+ 
+    class Email < ActiveRecord::Base
+      alias_attribute :subject, :title
+    end
+ 
+    e = Email.find(1)
+    e.title    # => "Superstars"
+    e.subject  # => "Superstars"
+    e.subject? # => true
+    e.subject = "Megastars"
+    e.title    # => "Megastars"
-
-* Deprecation: easier to work with warning behavior as procs; default behaviors for each environment so users needn't update env.rb; and testing pleasure with assert_deprecated, assert_not_deprecated. [Jeremy Kemper]

trunk/activesupport/lib/active_support/core_ext/date/conversions.rb

@@ -26 +26 @@
-          ::Time.send(form, year, month, day)
-        end
-
-
+
+
+
+
-      end
-    end

trunk/activesupport/lib/active_support/core_ext/module/aliasing.rb

@@ -28 +28 @@
-    alias_method target, "#{aliased_target}_with_#{feature}#{punctuation}"
-  end
+
+  # Allows you to make aliases for attributes, which includes 
+  # getter, setter, and query methods.
+  #
+  # Example:
+  #
+  #   class Content < ActiveRecord::Base
+  #     # has a title attribute
+  #   end
+  #
+  #   class Email < ActiveRecord::Base
+  #     alias_attribute :subject, :title
+  #   end
+  #
+  #   e = Email.find(1)
+  #   e.title    # => "Superstars"
+  #   e.subject  # => "Superstars"
+  #   e.subject? # => true
+  #   e.subject = "Megastars"
+  #   e.title    # => "Megastars"
+  def alias_attribute(new_name, old_name)
+    module_eval <<-STR, __FILE__, __LINE__+1
+      def #{new_name}; #{old_name}; end
+      def #{new_name}?; #{old_name}?; end
+      def #{new_name}=(v); self.#{old_name} = v; end
+    STR
+  end
-end

trunk/activesupport/test/core_ext/module_test.rb

@@ -118 +118 @@
-
-class MethodAliasingTest < Test::Unit::TestCase
-
-  def setup
-    Object.const_set(:FooClassWithBarMethod, Class.new)