diff options
author | Gonçalo Silva <goncalossilva@gmail.com> | 2010-06-30 23:01:30 +0100 |
---|---|---|
committer | Gonçalo Silva <goncalossilva@gmail.com> | 2010-06-30 23:01:30 +0100 |
commit | d2c633ba0bfb7baacdee89a46d7d036d24c68817 (patch) | |
tree | 8f0974852b51597652e6ae73da26f3eb80fe878b /activemodel/lib/active_model/validations/callbacks.rb | |
parent | 92c0f17d6d2a958d3a6285b0e5408e9e0e7122e1 (diff) | |
parent | c63cf7bf0db708fe46a929cf57649ab5a92034af (diff) | |
download | rails-d2c633ba0bfb7baacdee89a46d7d036d24c68817.tar.gz rails-d2c633ba0bfb7baacdee89a46d7d036d24c68817.tar.bz2 rails-d2c633ba0bfb7baacdee89a46d7d036d24c68817.zip |
Merge branch 'master' of http://github.com/rails/rails
Diffstat (limited to 'activemodel/lib/active_model/validations/callbacks.rb')
-rw-r--r-- | activemodel/lib/active_model/validations/callbacks.rb | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/activemodel/lib/active_model/validations/callbacks.rb b/activemodel/lib/active_model/validations/callbacks.rb new file mode 100644 index 0000000000..afd65d3dd5 --- /dev/null +++ b/activemodel/lib/active_model/validations/callbacks.rb @@ -0,0 +1,57 @@ +require 'active_support/callbacks' + +module ActiveModel + module Validations + module Callbacks + # == Active Model Validation callbacks + # + # Provides an interface for any class to have <tt>before_validation</tt> and + # <tt>after_validation</tt> callbacks. + # + # First, extend ActiveModel::Callbacks from the class you are creating: + # + # class MyModel + # include ActiveModel::Validations::Callbacks + # + # before_validation :do_stuff_before_validation + # after_validation :do_tuff_after_validation + # end + # + # Like other before_* callbacks if <tt>before_validation</tt> returns false + # then <tt>valid?</tt> will not be called. + extend ActiveSupport::Concern + + included do + include ActiveSupport::Callbacks + define_callbacks :validation, :terminator => "result == false", :scope => [:kind, :name] + end + + module ClassMethods + def before_validation(*args, &block) + options = args.last + if options.is_a?(Hash) && options[:on] + options[:if] = Array.wrap(options[:if]) + options[:if] << "self.validation_context == :#{options[:on]}" + end + set_callback(:validation, :before, *args, &block) + end + + def after_validation(*args, &block) + options = args.extract_options! + options[:prepend] = true + options[:if] = Array.wrap(options[:if]) + options[:if] << "!halted && value != false" + options[:if] << "self.validation_context == :#{options[:on]}" if options[:on] + set_callback(:validation, :after, *(args << options), &block) + end + end + + protected + + # Overwrite run validations to include callbacks. + def run_validations! + _run_validation_callbacks { super } + end + end + end +end |