method

_normalize_callback_options

v3.1.0 - Show latest stable - Class: AbstractController::Callbacks::ClassMethods

_normalize_callback_options(options)

public

If :only or :except are used, convert the options into the primitive form (:per_key) used by ActiveSupport::Callbacks. The basic idea is that :only => :index gets converted to :if => proc {|c| c.action_name == “index” }, but that the proc is only evaluated once per action for the lifetime of a Rails process.

Options

only - The callback should be run only for this action
except - The callback should be run for all actions except this action

# File actionpack/lib/abstract_controller/callbacks.rb, line 33
      def _normalize_callback_options(options)
        if only = options[:only]
          only = Array(only).map {|o| "action_name == '#{o}'"}.join(" || ")
          options[:per_key] = {:if => only}
        end
        if except = options[:except]
          except = Array(except).map {|e| "action_name == '#{e}'"}.join(" || ")
          options[:per_key] = {:unless => except}
        end
      end

_normalize_callback_options

Options

Related methods