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# frozen_string_literal: true
require 'grape/validations/validators/multiple_params_base'
module Grape
module Validations
module Validators
class ExactlyOneOfValidator < MultipleParamsBase
def validate_params!(params)
keys = keys_in_common(params)
return if keys.length == 1
raise Grape::Exceptions::Validation.new(params: all_keys, message: message(:exactly_one)) if keys.length.zero?
raise Grape::Exceptions::Validation.new(params: keys, message: message(:mutual_exclusion))
end
end
end
end
end
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