53 lines
1.6 KiB
Ruby
53 lines
1.6 KiB
Ruby
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require "active_support/core_ext/range"
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module ActiveModel
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module Validations
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module Clusivity #:nodoc:
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ERROR_MESSAGE = "An object with the method #include? or a proc, lambda or symbol is required, " \
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"and must be supplied as the :in (or :within) option of the configuration hash"
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def check_validity!
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unless delimiter.respond_to?(:include?) || delimiter.respond_to?(:call) || delimiter.respond_to?(:to_sym)
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raise ArgumentError, ERROR_MESSAGE
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end
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end
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private
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def include?(record, value)
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members = if delimiter.respond_to?(:call)
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delimiter.call(record)
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elsif delimiter.respond_to?(:to_sym)
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record.send(delimiter)
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else
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delimiter
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end
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members.send(inclusion_method(members), value)
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end
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def delimiter
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@delimiter ||= options[:in] || options[:within]
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end
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# In Ruby 2.2 <tt>Range#include?</tt> on non-number-or-time-ish ranges checks all
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# possible values in the range for equality, which is slower but more accurate.
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# <tt>Range#cover?</tt> uses the previous logic of comparing a value with the range
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# endpoints, which is fast but is only accurate on Numeric, Time, Date,
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# or DateTime ranges.
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def inclusion_method(enumerable)
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if enumerable.is_a? Range
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case enumerable.first
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when Numeric, Time, DateTime, Date
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:cover?
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else
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:include?
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end
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else
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:include?
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end
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end
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end
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end
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end
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