method

dup

Ruby on Rails latest stable (v6.1.7.7) - 0 notes - Class: Parameters

1.0.0
1.1.6
1.2.6
2.0.3
2.1.0
2.2.1
2.3.8
3.0.0
3.0.9
3.1.0
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3.2.13
4.0.2 (0)
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5.0.0.1 (0)
5.1.7
5.2.3
6.0.0
6.1.3.1
6.1.7.7
7.0.0
7.1.3.2
What's this?

Method deprecated or moved

This method is deprecated or moved on the latest stable version. The last existing version (v5.0.0.1) is shown here.

These similar methods exist in v6.1.7.7:

ActiveSupport::HashWithIndifferentAccess#dup
ActiveRecord::Core#dup

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 582
    def dup
      super.tap do |duplicate|
        duplicate.permitted = @permitted
      end
    end

dup

Related methods

Method deprecated or moved

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