app/graphql/types/range_input_type.rb


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# frozen_string_literal: true

module Types
  class RangeInputType < BaseInputObject
    def self.[](type, closed = true)
      @subtypes ||= {}

      @subtypes[[type, closed]] ||= Class.new(self) do
        argument :start, type,
                 required: closed,
                 description: 'Start of the range.'

        argument :end, type,
                 required: closed,
                 description: 'End of the range.'
      end
    end

    def prepare
      if self[:end] && self[:start] && self[:end] < self[:start]
        raise ::Gitlab::Graphql::Errors::ArgumentError, 'start must be before end'
      end

      to_h
    end
  end
end