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rails--rails/activemodel/lib/active_model/validations/clusivity.rb
Rafael Mendonça França 170956cdae Remove code duplication in InclusionValidator and ExclusionValidator.
Orginal code by @jamescook

Closes #1352

[Rafael Mendonça França + James Cook]
2012-03-28 18:57:56 -03:00

31 lines
1.1 KiB
Ruby

require 'active_support/core_ext/range.rb'
module ActiveModel
module Validations
module Clusivity
ERROR_MESSAGE = "An object with the method #include? or a proc or lambda is required, " <<
"and must be supplied as the :in option of the configuration hash"
def check_validity!
unless [:include?, :call].any?{ |method| options[:in].respond_to?(method) }
raise ArgumentError, ERROR_MESSAGE
end
end
private
def include?(record, value)
delimiter = options[:in]
exclusions = delimiter.respond_to?(:call) ? delimiter.call(record) : delimiter
exclusions.send(inclusion_method(exclusions), value)
end
# In Ruby 1.9 <tt>Range#include?</tt> on non-numeric ranges checks all possible values in the
# range for equality, so it may be slow for large ranges. The new <tt>Range#cover?</tt>
# uses the previous logic of comparing a value with the range endpoints.
def inclusion_method(enumerable)
enumerable.is_a?(Range) ? :cover? : :include?
end
end
end
end