lib/grape/validations/validators/except_values_validator.rb
# frozen_string_literal: true
module Grape
module Validations
module Validators
class ExceptValuesValidator < Base
def initialize(attrs, options, required, scope, **opts)
@except = options.is_a?(Hash) ? options[:value] : options
super
end
def validate_param!(attr_name, params)
return unless params.respond_to?(:key?) && params.key?(attr_name)
excepts = @except.is_a?(Proc) ? @except.call : @except
return if excepts.nil?
param_array = params[attr_name].nil? ? [nil] : Array.wrap(params[attr_name])
raise Grape::Exceptions::Validation.new(params: [@scope.full_name(attr_name)], message: message(:except_values)) if param_array.any? { |param| excepts.include?(param) }
end
end
end
end
end