Added reusable reloading support through the inclusion of the Relodable module that all subclasses of ActiveRecord::Base, ActiveRecord::Observer, ActiveController::Base, and ActionMailer::Base automatically gets [DHH]. Added auto-loading support for classes in modules, so Conductor::Migration will look for conductor/migration.rb and Conductor::Database::Settings will look for conductor/database/settings.rb [Nicholas Seckar]. Refactored extensions to module, class, and object in active support [DHH]

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@3493 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

1 files changed, 21 insertions, 0 deletions

diff --git a/activesupport/lib/active_support/core_ext/class/removal.rb b/activesupport/lib/active_support/core_ext/class/removal.rb
new file mode 100644
index 0000000000..8fc4d728b3
--- /dev/null
+++ b/activesupport/lib/active_support/core_ext/class/removal.rb
@@ -0,0 +1,21 @@
+class Class #:nodoc:
+  def remove_subclasses
+    Object.remove_subclasses_of(self)
+  end
+
+  def subclasses
+    Object.subclasses_of(self).map { |o| o.to_s }
+  end
+
+  def remove_class(klass)
+    if klass.to_s.include? "::"
+      modules     = klass.to_s.split("::")
+      final_klass = modules.pop
+              
+      final_module = modules.inject(Object) { |final_type, part| final_type.const_get(part) }
+      final_module.send(:remove_const, final_klass) rescue nil
+    else
+      Object.send(:remove_const, klass.to_s) rescue nil
+    end
+  end
+end
\ No newline at end of file