diff options
Diffstat (limited to 'activesupport/lib/active_support/callbacks.rb')
| -rw-r--r-- | activesupport/lib/active_support/callbacks.rb | 116 |
1 files changed, 34 insertions, 82 deletions
diff --git a/activesupport/lib/active_support/callbacks.rb b/activesupport/lib/active_support/callbacks.rb index fefba5b0fd..3db9ea2ac0 100644 --- a/activesupport/lib/active_support/callbacks.rb +++ b/activesupport/lib/active_support/callbacks.rb @@ -126,14 +126,10 @@ module ActiveSupport def self.build(callback_sequence, user_callback, user_conditions, chain_config, filter) halted_lambda = chain_config[:terminator] - if chain_config.key?(:terminator) && user_conditions.any? + if user_conditions.any? halting_and_conditional(callback_sequence, user_callback, user_conditions, halted_lambda, filter) - elsif chain_config.key? :terminator - halting(callback_sequence, user_callback, halted_lambda, filter) - elsif user_conditions.any? - conditional(callback_sequence, user_callback, user_conditions) else - simple callback_sequence, user_callback + halting(callback_sequence, user_callback, halted_lambda, filter) end end @@ -175,42 +171,15 @@ module ActiveSupport end end private_class_method :halting - - def self.conditional(callback_sequence, user_callback, user_conditions) - callback_sequence.before do |env| - target = env.target - value = env.value - - if user_conditions.all? { |c| c.call(target, value) } - user_callback.call target, value - end - - env - end - end - private_class_method :conditional - - def self.simple(callback_sequence, user_callback) - callback_sequence.before do |env| - user_callback.call env.target, env.value - - env - end - end - private_class_method :simple end class After def self.build(callback_sequence, user_callback, user_conditions, chain_config) if chain_config[:skip_after_callbacks_if_terminated] - if chain_config.key?(:terminator) && user_conditions.any? + if user_conditions.any? halting_and_conditional(callback_sequence, user_callback, user_conditions) - elsif chain_config.key?(:terminator) - halting(callback_sequence, user_callback) - elsif user_conditions.any? - conditional callback_sequence, user_callback, user_conditions else - simple callback_sequence, user_callback + halting(callback_sequence, user_callback) end else if user_conditions.any? @@ -273,14 +242,10 @@ module ActiveSupport class Around def self.build(callback_sequence, user_callback, user_conditions, chain_config) - if chain_config.key?(:terminator) && user_conditions.any? + if user_conditions.any? halting_and_conditional(callback_sequence, user_callback, user_conditions) - elsif chain_config.key? :terminator - halting(callback_sequence, user_callback) - elsif user_conditions.any? - conditional(callback_sequence, user_callback, user_conditions) else - simple(callback_sequence, user_callback) + halting(callback_sequence, user_callback) end end @@ -318,33 +283,6 @@ module ActiveSupport end end private_class_method :halting - - def self.conditional(callback_sequence, user_callback, user_conditions) - callback_sequence.around do |env, &run| - target = env.target - value = env.value - - if user_conditions.all? { |c| c.call(target, value) } - user_callback.call(target, value) { - run.call.value - } - env - else - run.call - end - end - end - private_class_method :conditional - - def self.simple(callback_sequence, user_callback) - callback_sequence.around do |env, &run| - user_callback.call(env.target, env.value) { - run.call.value - } - env - end - end - private_class_method :simple end end @@ -598,23 +536,12 @@ module ActiveSupport Proc.new do |target, result_lambda| terminate = true catch(:abort) do - result = result_lambda.call if result_lambda.is_a?(Proc) - if halt_and_display_warning_on_return_false && result == false - display_deprecation_warning_for_false_terminator - else - terminate = false - end + result_lambda.call if result_lambda.is_a?(Proc) + terminate = false end terminate end end - - def display_deprecation_warning_for_false_terminator - ActiveSupport::Deprecation.warn(<<-MSG.squish) - Returning `false` in a callback will not implicitly halt a callback chain in the next release of Rails. - To explicitly halt a callback chain, please use `throw :abort` instead. - MSG - end end module ClassMethods @@ -748,7 +675,8 @@ module ActiveSupport # # In this example, if any before validate callbacks returns +false+, # any successive before and around callback is not executed. - # Defaults to +false+, meaning no value halts the chain. + # + # The default terminator halts the chain when a callback throws +:abort+. # # * <tt>:skip_after_callbacks_if_terminated</tt> - Determines if after # callbacks should be terminated by the <tt>:terminator</tt> option. By @@ -826,6 +754,30 @@ module ActiveSupport def set_callbacks(name, callbacks) send "_#{name}_callbacks=", callbacks end + + def deprecated_false_terminator + Proc.new do |target, result_lambda| + terminate = true + catch(:abort) do + result = result_lambda.call if result_lambda.is_a?(Proc) + if CallbackChain.halt_and_display_warning_on_return_false && result == false + display_deprecation_warning_for_false_terminator + else + terminate = false + end + end + terminate + end + end + + private + + def display_deprecation_warning_for_false_terminator + ActiveSupport::Deprecation.warn(<<-MSG.squish) + Returning `false` in Active Record and Active Model callbacks will not implicitly halt a callback chain in the next release of Rails. + To explicitly halt the callback chain, please use `throw :abort` instead. + MSG + end end end end |