Module: AbstractController::ActionArgs::ClassMethods

Defined in:
lib/rails_action_args/abstract_controller.rb

Instance Method Summary collapse

Instance Method Details

#action_args_for(action_name, params) ⇒ Object

:api: private



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# File 'lib/rails_action_args/abstract_controller.rb', line 24

def action_args_for(action_name, params)
  arguments, defaults = extract_action_args_for(action_name)
  
  arguments.map do |arg, default|
    arg = arg
    param = params.key?(arg.to_sym)
    unless param || (defaults && defaults.include?(arg))
      raise InvalidActionArgs.new("No value or default value supplied for action arg: #{arg}")
    else
      param ? params[arg.to_sym] : default
    end
  end
end

#extract_action_args_for(action_name) ⇒ Object

:api: private



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# File 'lib/rails_action_args/abstract_controller.rb', line 39

def extract_action_args_for(action_name)
  args = instance_method(action_name).get_args
  arguments = args[0]
  defaults = []
  arguments.each {|a| defaults << a[0] if a.size == 2} if arguments
  [arguments || [], defaults]
end