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Contents
module DataMapper
class Property
class Numeric < Object
include Typecast::Numeric
accept_options :precision, :scale, :min, :max
attr_reader :precision, :scale, :min, :max
DEFAULT_NUMERIC_MIN = 0
DEFAULT_NUMERIC_MAX = (2**31) - 1
protected def initialize(model, name, options = {})
super
if is_a?(Decimal) || is_a?(Float)
@precision = @options.fetch(:precision)
@scale = @options.fetch(:scale)
raise ArgumentError, "precision must be greater than 0, but was #{@precision.inspect}" unless @precision > 0
end
return unless @options.key?(:min) || @options.key?(:max)
@min = @options.fetch(:min, self.class::DEFAULT_NUMERIC_MIN)
@max = @options.fetch(:max, self.class::DEFAULT_NUMERIC_MAX)
if @max < DEFAULT_NUMERIC_MIN && !@options.key?(:min)
raise ArgumentError, "min should be specified when the max is less than #{DEFAULT_NUMERIC_MIN}"
elsif @max < @min
raise ArgumentError, "max must be less than the min, but was #{@max} while the min was #{@min}"
end
end
end
end
end
Version data entries
4 entries across 4 versions & 1 rubygems