diff options
Diffstat (limited to 'activesupport/lib/active_support/callbacks.rb')
| -rw-r--r-- | activesupport/lib/active_support/callbacks.rb | 40 |
1 files changed, 24 insertions, 16 deletions
diff --git a/activesupport/lib/active_support/callbacks.rb b/activesupport/lib/active_support/callbacks.rb index 329cc2fdc7..9c59b7ac76 100644 --- a/activesupport/lib/active_support/callbacks.rb +++ b/activesupport/lib/active_support/callbacks.rb @@ -96,17 +96,25 @@ module ActiveSupport end end - def find_callback(callback, &block) + def |(chain) + if chain.is_a?(CallbackChain) + chain.each { |callback| self | callback } + else + if (found_callback = find(chain)) && (index = index(chain)) + self[index] = chain + else + self << chain + end + end + self + end + + def find(callback, &block) select { |c| c == callback && (!block_given? || yield(c)) }.first end - def replace_or_append_callback(callback) - if found_callback = find_callback(callback) - index = index(found_callback) - self[index] = callback - else - self << callback - end + def delete(callback) + super(callback.is_a?(Callback) ? callback : find(callback)) end private @@ -216,8 +224,8 @@ module ActiveSupport end end - # Runs all the callbacks defined for the given options. - # + # Runs all the callbacks defined for the given options. + # # If a block is given it will be called after each callback receiving as arguments: # # * the result from the callback @@ -228,31 +236,31 @@ module ActiveSupport # Example: # class Storage # include ActiveSupport::Callbacks - # + # # define_callbacks :before_save, :after_save # end - # + # # class ConfigStorage < Storage # before_save :pass # before_save :pass # before_save :stop # before_save :pass - # + # # def pass # puts "pass" # end - # + # # def stop # puts "stop" # return false # end - # + # # def save # result = run_callbacks(:before_save) { |result, object| result == false } # puts "- save" if result # end # end - # + # # config = ConfigStorage.new # config.save # |