diff options
Diffstat (limited to 'activesupport/lib/active_support/callbacks.rb')
| -rw-r--r-- | activesupport/lib/active_support/callbacks.rb | 45 |
1 files changed, 24 insertions, 21 deletions
diff --git a/activesupport/lib/active_support/callbacks.rb b/activesupport/lib/active_support/callbacks.rb index 37f9494272..814fd288cf 100644 --- a/activesupport/lib/active_support/callbacks.rb +++ b/activesupport/lib/active_support/callbacks.rb @@ -5,6 +5,7 @@ require 'active_support/core_ext/class/attribute' require 'active_support/core_ext/kernel/reporting' require 'active_support/core_ext/kernel/singleton_class' require 'active_support/core_ext/string/filters' +require 'active_support/deprecation' require 'thread' module ActiveSupport @@ -79,14 +80,10 @@ module ActiveSupport # save # end def run_callbacks(kind, &block) - send "_run_#{kind}_callbacks", &block - end - - private + callbacks = send("_#{kind}_callbacks") - def _run_callbacks(callbacks, &block) if callbacks.empty? - block.call if block + yield if block_given? else runner = callbacks.compile e = Filters::Environment.new(self, false, nil, block) @@ -94,6 +91,8 @@ 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. @@ -662,10 +661,12 @@ module ActiveSupport # # ===== Options # - # * <tt>:if</tt> - A symbol naming an instance method or a proc; the - # callback will be called only when it returns a +true+ value. - # * <tt>:unless</tt> - A symbol naming an instance method or a proc; the - # callback will be called only when it returns a +false+ value. + # * <tt>:if</tt> - A symbol, a string or an array of symbols and strings, + # each naming an instance method or a proc; the callback will be called + # only when they all return a true value. + # * <tt>:unless</tt> - A symbol, a string or an array of symbols and + # strings, each naming an instance method or a proc; the callback will + # be called only when they all return a false value. # * <tt>:prepend</tt> - If +true+, the callback will be prepended to the # existing chain rather than appended. def set_callback(name, *filter_list, &block) @@ -688,19 +689,27 @@ module ActiveSupport # class Writer < Person # skip_callback :validate, :before, :check_membership, if: -> { self.age > 18 } # end + # + # An <tt>ArgumentError</tt> will be raised if the callback has not + # already been set (unless the <tt>:raise</tt> option is set to <tt>false</tt>). def skip_callback(name, *filter_list, &block) type, filters, options = normalize_callback_params(filter_list, block) + options[:raise] = true unless options.key?(:raise) __update_callbacks(name) do |target, chain| filters.each do |filter| - filter = chain.find {|c| c.matches?(type, filter) } + callback = chain.find {|c| c.matches?(type, filter) } + + if !callback && options[:raise] + raise ArgumentError, "#{type.to_s.capitalize} #{name} callback #{filter.inspect} has not been defined" + end - if filter && options.any? - new_filter = filter.merge_conditional_options(chain, if_option: options[:if], unless_option: options[:unless]) - chain.insert(chain.index(filter), new_filter) + if callback && (options.key?(:if) || options.key?(:unless)) + new_callback = callback.merge_conditional_options(chain, if_option: options[:if], unless_option: options[:unless]) + chain.insert(chain.index(callback), new_callback) end - chain.delete(filter) + chain.delete(callback) end target.set_callbacks name, chain end @@ -797,12 +806,6 @@ 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 |