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authorDavid Heinemeier Hansson <david@loudthinking.com>2004-12-29 21:14:58 +0000
committerDavid Heinemeier Hansson <david@loudthinking.com>2004-12-29 21:14:58 +0000
commit4290267959e8c91b8f2a4898d3fa33b15b8b7d57 (patch)
tree080250de03a99e133150ce58614073d771309897 /activerecord/lib/active_record/support/class_inheritable_attributes.rb
parent84d5519b74f831d31caf00a018ca0c3b60ebb643 (diff)
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Moved support into Active Support
git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@277 5ecf4fe2-1ee6-0310-87b1-e25e094e27de
Diffstat (limited to 'activerecord/lib/active_record/support/class_inheritable_attributes.rb')
-rw-r--r--activerecord/lib/active_record/support/class_inheritable_attributes.rb40
1 files changed, 0 insertions, 40 deletions
diff --git a/activerecord/lib/active_record/support/class_inheritable_attributes.rb b/activerecord/lib/active_record/support/class_inheritable_attributes.rb
deleted file mode 100644
index 201932cf2d..0000000000
--- a/activerecord/lib/active_record/support/class_inheritable_attributes.rb
+++ /dev/null
@@ -1,40 +0,0 @@
-# Allows attributes to be shared within an inheritance hierarchy, but where each descentent gets a copy of
-# their parents' attributes, instead of just a pointer to the same. This means that the child can add elements
-# to, for example, an array without those additions being shared with either their parent, siblings, or
-# children, which is unlike the regular class-level attributes that are shared across the entire hierarchy.
-module ClassInheritableAttributes # :nodoc:
- def self.append_features(base)
- super
- base.extend(ClassMethods)
- end
-
- module ClassMethods # :nodoc:
- @@classes ||= {}
-
- def inheritable_attributes
- @@classes[self] ||= {}
- end
-
- def write_inheritable_attribute(key, value)
- inheritable_attributes[key] = value
- end
-
- def write_inheritable_array(key, elements)
- write_inheritable_attribute(key, []) if read_inheritable_attribute(key).nil?
- write_inheritable_attribute(key, read_inheritable_attribute(key) + elements)
- end
-
- def read_inheritable_attribute(key)
- inheritable_attributes[key]
- end
-
- def reset_inheritable_attributes
- inheritable_attributes.clear
- end
-
- private
- def inherited(child)
- @@classes[child] = inheritable_attributes.dup
- end
- end
-end