method

define_conditional_callback

v4.0.2 - Show latest stable - Class: ActiveSupport::Callbacks::Callback

define_conditional_callback()

private

Compile around filters with conditions into proxy methods that contain the conditions.

For `set_callback :save, :around, :filter_name, if: :condition’:

def _conditional_callback_save_17
  if condition
    filter_name do
      yield self
    end
  else
    yield self
  end
end

# File activesupport/lib/active_support/callbacks.rb, line 206
      def define_conditional_callback
        name = "_conditional_callback_#{@kind}_#{next_id}"
        @klass.class_eval           def #{name}(halted)           if #{@compiled_options} && !halted             #{@filter} do               yield self             end           else             yield self           end         end,  __FILE__, __LINE__ + 1
        name
      end

define_conditional_callback

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