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author | Dmitry Polushkin <dmitry.polushkin@gmail.com> | 2011-12-31 01:10:42 +0000 |
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committer | Dmitry Polushkin <dmitry.polushkin@gmail.com> | 2011-12-31 01:10:42 +0000 |
commit | 04bc40ff501b1bf81bec7ce3937cb06c896ffc69 (patch) | |
tree | 88a33663195900df8a7307aefa2c9aaa561c3973 /activerecord/lib/active_record/readonly_attributes.rb | |
parent | 84eece0a823e9c601ea99a8709f24605a19bcbfd (diff) | |
parent | ed17983ec56dec689a0311c7f8fcbeba9874e5a4 (diff) | |
download | rails-04bc40ff501b1bf81bec7ce3937cb06c896ffc69.tar.gz rails-04bc40ff501b1bf81bec7ce3937cb06c896ffc69.tar.bz2 rails-04bc40ff501b1bf81bec7ce3937cb06c896ffc69.zip |
Merge branch 'master' of git://github.com/rails/rails
Diffstat (limited to 'activerecord/lib/active_record/readonly_attributes.rb')
-rw-r--r-- | activerecord/lib/active_record/readonly_attributes.rb | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/readonly_attributes.rb b/activerecord/lib/active_record/readonly_attributes.rb new file mode 100644 index 0000000000..836b15e2ce --- /dev/null +++ b/activerecord/lib/active_record/readonly_attributes.rb @@ -0,0 +1,26 @@ +require 'active_support/concern' +require 'active_support/core_ext/class/attribute' + +module ActiveRecord + module ReadonlyAttributes + extend ActiveSupport::Concern + + included do + config_attribute :_attr_readonly + self._attr_readonly = [] + end + + module ClassMethods + # Attributes listed as readonly will be used to create a new record but update operations will + # ignore these fields. + def attr_readonly(*attributes) + self._attr_readonly = Set.new(attributes.map { |a| a.to_s }) + (self._attr_readonly || []) + end + + # Returns an array of all the attributes that have been specified as readonly. + def readonly_attributes + self._attr_readonly + end + end + end +end |