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Contents
module Validatable
class ValidatesNumericalityOf < ValidationBase #:nodoc:
attr_accessor :only_integer
def valid?(instance)
value = value_for(instance)
return true if allow_nil && value.nil?
return true if allow_blank && (!value or (value.respond_to?(:empty?) and value.empty?))
value = value.to_s
regex = self.only_integer ? /\A[+-]?\d+\Z/ : /^\d*\.{0,1}\d+$/
not (value =~ regex).nil?
end
def message(instance)
super || "must be a number"
end
private
def value_for(instance)
before_typecast_method = "#{self.attribute}_before_typecast"
value_method = instance.respond_to?(before_typecast_method.intern) ? before_typecast_method : self.attribute
instance.send(value_method)
end
end
end
Version data entries
12 entries across 12 versions & 1 rubygems