method

dup

v4.2.9 - Show latest stable - 0 notes - Class: Parameters

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What's this?

dup() public

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

Show source

# File actionpack/lib/action_controller/metal/strong_parameters.rb, line 437
    def dup
      super.tap do |duplicate|
        duplicate.permitted = @permitted
      end
    end

dup

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