method

dig

v5.0.0.1 - Show latest stable - 0 notes - Class: Parameters

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What's this?

dig(*keys) public

Extracts the nested parameter from the given keys by calling dig at each step. Returns nil if any intermediate step is nil.

params = ActionController::Parameters.new(foo: { bar: { baz: 1 } }) params.dig(:foo, :bar, :baz) # => 1 params.dig(:foo, :zot, :xyz) # => nil

params2 = ActionController::Parameters.new(foo: [10, 11, 12]) params2.dig(:foo, 1) # => 11

Show source

# File actionpack/lib/action_controller/metal/strong_parameters.rb, line 450
      def dig(*keys)
        convert_value_to_parameters(@parameters.dig(*keys))
      end

dig

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