Method: AbstractController::Callbacks::ClassMethods#_normalize_callback_options

Defined in:
actionpack/lib/abstract_controller/callbacks.rb

#_normalize_callback_options(options) ⇒ Object

If :only or :except are used, convert the options into the :if and :unless options of ActiveSupport::Callbacks.

The basic idea is that ‘:only => :index` gets converted to `:if => proc {|c| c.action_name == “index” }`.

Note that :only has priority over :if in case they are used together.

only: :index, if: -> { true } # the :if option will be ignored.

Note that :if has priority over :except in case they are used together.

except: :index, if: -> { true } # the :except option will be ignored.

#### Options

  • only - The callback should be run only for this action.

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



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# File 'actionpack/lib/abstract_controller/callbacks.rb', line 93

def _normalize_callback_options(options)
  _normalize_callback_option(options, :only, :if)
  _normalize_callback_option(options, :except, :unless)
end