diff options
Diffstat (limited to 'activesupport/lib/active_support/callbacks.rb')
| -rw-r--r-- | activesupport/lib/active_support/callbacks.rb | 22 |
1 files changed, 15 insertions, 7 deletions
diff --git a/activesupport/lib/active_support/callbacks.rb b/activesupport/lib/active_support/callbacks.rb index 814fd288cf..fefba5b0fd 100644 --- a/activesupport/lib/active_support/callbacks.rb +++ b/activesupport/lib/active_support/callbacks.rb @@ -80,8 +80,12 @@ module ActiveSupport # save # end def run_callbacks(kind, &block) - callbacks = send("_#{kind}_callbacks") + send "_run_#{kind}_callbacks", &block + end + + private + def __run_callbacks__(callbacks, &block) if callbacks.empty? yield if block_given? else @@ -91,8 +95,6 @@ module ActiveSupport end end - private - # A hook invoked every time a before callback is halted. # This can be overridden in AS::Callback implementors in order # to provide better debugging/logging. @@ -638,7 +640,7 @@ module ActiveSupport # set_callback :save, :after, :after_meth, if: :condition # set_callback :save, :around, ->(r, block) { stuff; result = block.call; stuff } # - # The second arguments indicates whether the callback is to be run +:before+, + # The second argument indicates whether the callback is to be run +:before+, # +:after+, or +:around+ the event. If omitted, +:before+ is assumed. This # means the first example above can also be written as: # @@ -739,10 +741,10 @@ module ActiveSupport # callback chain, preventing following before and around callbacks from # being called and the event from being triggered. # This should be a lambda to be executed. - # The current object and the return result of the callback will be called - # with the lambda. + # The current object and the result lambda of the callback will be provided + # to the terminator lambda. # - # define_callbacks :validate, terminator: ->(target, result) { result == false } + # define_callbacks :validate, terminator: ->(target, result_lambda) { result_lambda.call == false } # # In this example, if any before validate callbacks returns +false+, # any successive before and around callback is not executed. @@ -806,6 +808,12 @@ module ActiveSupport names.each do |name| class_attribute "_#{name}_callbacks" set_callbacks name, CallbackChain.new(name, options) + + module_eval <<-RUBY, __FILE__, __LINE__ + 1 + def _run_#{name}_callbacks(&block) + __run_callbacks__(_#{name}_callbacks, &block) + end + RUBY end end |