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stephancom/valid_values.rb

Created March 27, 2018 20:02
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Get valid values for a field with :inclusion validation via inspection
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valid_values.rb
def valid_values(klass, kolumn)
klass.validators_on(kolumn).select { |v| v.is_a? ActiveModel::Validations::InclusionValidator }.first.options[:in].map(&:to_s)
end
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