CanCanCommunity/cancancan

lib/cancan/parameter_validators.rb

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# frozen_string_literal: true

module CanCan
  module ParameterValidators
    def valid_attribute_param?(attribute)
      attribute.nil? || attribute.is_a?(Symbol) || (attribute.is_a?(Array) && attribute.all? { |a| a.is_a?(Symbol) })
    end
  end
end