dup() — ActionController::Parameters

dup()

Returns an exact copy of the ActionController::Parameters instance. permitted state is kept on the duped object.

params = ActionController::Parameters.new(a: 1)
params.permit!
params.permitted?        # => true
copy_params = params.dup # => {"a"=>1}
copy_params.permitted?   # => true

Source

# File actionpack/lib/action_controller/metal/strong_parameters.rb, line 328
    def dup
      super.tap do |duplicate|
        duplicate.instance_variable_set :@permitted, @permitted
      end
    end

Defined in actionpack/lib/action_controller/metal/strong_parameters.rb line 328 · View on GitHub · Improve this page · Find usages on GitHub

Defined in ActionController::Parameters

Signature